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State ownership and stock return volatility: New Evidence from China’s secondary privatisation
Feng Xiea1, Jing Chia, and Jing Liaoa
Abstract
The study adds new evidence of the impact of state ownership on firm performance uncertainty followed by the Non-tradable Share (NTS) Reform. Using hand collected data of state ownership in Chinese listed firms, we first find a negative relationship between state ownership and stock return volatility. This result indicates that state ownership can mitigate corporate performance uncertainty when the overall corporate governance is weak. Second, we add new evidence on the determinants of residual state ownership. As such, government is more likely to retain the ownership in high labour intensity, industry-leading, larger size, and highly leveraged firms. Our results are robust when controlling for endogeneity issues. Our results are very much relevant to Chinese investors and policy makers, since all the state-owned shares of Chinese listed firms were gradually converted into tradable after the NTS reform launched in 2005.
Keywords: Financial markets uncertainty, State ownership, Stock return volatility, China
JEL Classification: G28, G32
1a All authors are from the School of Economics and Finance, Massey University, New Zealand. Corresponding Author: Feng Xie. School of Economics and Finance, Massey University (Manawatu Campus), Private Bag 11-222, Palmerston North 4442, New Zealand, Tel: +64-6-3505799 ext. 85635; Email: [email protected]
1. Introduction
This study investigates the impact of state ownership on firm performance uncertainty after
the Non-tradable Share (NTS) Reform in China. The NTS reform is one of the most important
reforms of Chinese financial markets, which transfer non-tradable shares into tradable
shares. Non-tradable shares are held mainly by state agencies and state-owned enterprises
(SOEs), therefore, the NTS reform is also referred to China’s secondary privatisation (Liao,
Liu & Wang, 2014).
To the best of our knowledge, our study is the first to explore the impact of state ownership
in China on stock return volatility. Our results indicate that state control can mitigate
corporate performance uncertainty when the overall corporate governance is weak. Second,
we provide empirical evidence to support the state-owned enterprises reform statement
“Guiding Opinions of the Central Committee of the Communist Party of China and the State
Council on Deepening State-Owned Enterprise Reform” announced on 24 August, 2015 (The
Central Committee of the Chinese Communist Party, the State Council, 2015), where the
significant role of state ownership in political foundations and economic development is
repeatedly declared. It is documented in the Guiding Opinions that
“Unswervingly consolidate and develop state-owned economy and encourage,
support and guide the development of the non-state economy. Insist on the principal
status of state ownership, give play to the dominant role of the State-owned
economy, actively promote the cross-shareholding and mutual integration of the
State-owned capital, collective capital and non-public capital ……”
Moreover, we add new evidence to the determinants of the privatisation decision-making
process. That is, the Chinese government maintains the ownership and control in
economically important firms and sectors. Our study provides important understanding of
China’s secondary privatisation and SOE reform, as well as the goal of the government
during the reform transition and post-NTS reform period.
There is considerable controversy regarding the role of state ownership in listed firms. One
strand of literature argues that governments use SOEs to pursue their political and
economic benefits, for example, to achieve excess employment, election support, or private
benefits diverted from insider expropriation (Dinc & Gupta, 2011; Liu, Sun, & Woo, 2006; Liu
& Tian, 2012; Shleifer & Vishny, 1994). Another strand of literature finds that governments
provide political and financial back-up, which in turn improves firm performance (Blanchard
& Shleifer, 2001; Qian, 2003), lowers risk-taking (Boubakri, Cosset, & Saffar, 2013; Khaw,
Liao, Tripe, & Wongchoti, 2016), and offers effective monitoring, especially when legal
investor protection is weak (Chen, Li, Su, & Sun, 2011; Perotti, 2003).
China deserves special attention in the debate on the role of state ownership in listed firms,
given the fact that the Chinese government controls and owns a significant proportion of
shares in listed firms. Previous studies examine the impact of state ownership on firm
performance, but those studies use either the non-tradable state ownership or a mixture of
the non-tradable/tradable ownership to address this issue. In this study, we use hand
collected data of tradable state ownership to examine the role of state ownership on stock
return volatility.
Utilizing the data of 1,860 listed firms in China whose state shares are fully tradable over the
time period between 2007 and 2014, we first explore the impact of state ownership on
stock return volatility. Second, in order to investigate whether the government ownership
can serve as a stabiliser of the financial markets, we analyse the government motivation of
privatisation when state shares become tradable. Given the fact that state-owned shares
were purchased based on the net asset value of the firms which is much lower than the
market trading prices (Liao et al., 2014), asking the question of whether the state intends to
sell these tradable state-owned shares to make huge capital gains or keep them to reduce
the uncertainty of the financial markets is very much crucial. Following Li and Yamada
(2015)2, we examine the determinants of tradable state ownership after the NTS reform
from both political and economic perspectives. Third, we adopt the Cox-hazard model to
investigate the impact of state control on the speed of converting non-tradable shares to
tradable share. Our results show that state ownership can significantly reduce the volatility
of stock return. In addition, the Chinese government still retains the ownership and control
in economically important firms and sectors, such as high labour intensity, larger size, highly
leveraged, and industry-leading firms. We argue that these results show the government’s
incentive to stabilise the financial markets, which in turn can stabilise the Chinese economy.
Moreover, the Cox-hazard model results confirm that the government tends to take longer
time to finish the whole reform process in these economically important firms and sectors.
The remainder of the paper proceeds as follows. Section 2 is the literature review and
hypothesis development. Section 3 describes the sample and variable measurements.
Section 4 presents the analyses and results’ discussion. Section 5 is the conclusion.
2 Li and Yamada (2015) investigate the political and economic motivations of the Chinese government in privatisation following the Share Issue Privatisation (SIP) in China from 1998 to 2007. Our study focuses on the time period after all state shares become tradable from 2007 to 2014.
2. Literature review and hypothesis development
2.1 Institutional background
A unique characteristic of Chinese capital markets before the NTS reform was a dual share
structure where almost two thirds of listed firms’ outstanding shares were non-tradable
shares which were mainly held by the state and legal persons, while the remaining shares
can be traded freely in the markets and are mainly held by individual and institutional
investors (Firth, Fung, & Rui, 2007).
A large body of literature has documented the problems caused by the partial trading and
partial privatisation features. Liao et al. (2014) state that the split share structure leads to a
poor corporate governance system due to incentive disparity between controlling
shareholders and minority shareholders, which in turn leads to weak legal investor
protection. In addition, the partial trading and partial privatisation jeopardise the
development of the Chinese stock markets. Cai, Li, Xia, and Zhang (2012) point out that the
dual class ownership structure constrains the financing function of the Chinese stock
markets in that non-tradable shares tend to be severely undervalued, and the equity
financing is mainly realised through tradable shares. Moreover, investors speculate in the
stock markets for short term returns, rather than aiming at long term returns, since only one
third of total shares outstanding are traded and it is relatively easy to manipulate the stock
prices (Liu & Tian, 2012).
After fully realising the problems in SOEs and the Chinese stock markets caused by the split
share structure, in 2005 the Chinese government launched the Non-tradable Share Reform.
This reform converted non-tradable shares to tradable shares, with negotiated
compensation paid from the non-tradable shareholders to tradable shareholders. Unlike the
previous SOE reform, the NTS reform allows individual firms to have their own reform
proposals rather than a one-size-fits-all solution, and leaves the final decision to
shareholders, especially tradable shareholders. In addition, in order to avoid a sudden
increase of the stock supply and to stabilise the stock markets, the Chinese government
mandates a compulsory lock-up period of at least 12 months for non-tradable shares after
the reform plan’s effective day, and non-tradable shareholders are not allowed to sell more
than 5% (10%) of their outstanding shares within 12 (24) months after the lock-up period. By
the end of 2007, 97% of the firms trading on the Chinese A-share markets had completed
the NTS reform (Li, Wang, Cheung, & Jiang, 2011).
2.2. The impact of the NTS reform
Prior studies, such as Liao et al. (2014) and Chi, Liao, and Li (2014), document that the NTS
reform boosts SOEs output, profitability, and employment. It is stated that the NTS reform
in China has achieved greater success on firm financial and operating performance in
comparison with the SIPs, especially on profitability (Chi et al., 2014). In terms of the
determinants of the performance improvement, some studies argue that the better
alignment of the interests between the controlling and minority shareholders is the main
reason behind the performance improvements. Jiang, Laurenceson, and Tang (2008) argue
that, due to the mandated lock-up period, the potential large capital gain provides
controlling shareholders more incentive to pressure firm management to focus more on
profit maximisation. Moreover, Liao et al. (2014) state that the improvements of SOE
performance after the NTS reform are positively related to government agents’
privatisation-led incentive of increasing share value.
Several studies have also explored the impacts of the NTS reform on corporate governance,
and find that the reform creates an incentive alignment between the controlling and
minority shareholders, and strengthens the corporate governance of Chinese listed firms in
a weak investor protection environment (Liao et al., 2014). Liu and Tian (2012) and Jiang and
Habib (2012) find the NTS reform significantly reduces earnings management measured by
absolute discretionary accruals, and tunnelling practices through pledging bank loans and
related party transactions.
To summarise, studies so far show evidence that the NTS reform provides some solutions
for issues caused by split structure ownership in Chinese listed firms, better aligns the
interests between controlling and minority investors, and improves firm performance and
corporate governance.
2.3. The role of state ownership
For decades, academics have argued that state ownership is the source of corporate
inefficiency; many governments view privatisation as the key method of reducing
government interference in the market and promoting economic efficiency. Shleifer and
Vishny (1994) argue that SOEs are inefficient due to the interest disparity between the
government and private investors. It is argued that governments aim to achieve both
political and economic objectives at the same time (Shleifer & Vishny, 1998). A number of
studies have documented that privatised firms enjoy significant firm performance
improvements (Boubakri & Cosset, 1998; D’Souza & Megginson, 2000; Megginson, Nash, &
Randenborgh, 1994). Therefore, it is argued that state ownership relinquishment is the key
solution of firm efficiency and economic development (Megginson & Netter, 2001).
However, privatisation is not a panacea. Privatisation has not been successful in the former
Soviet Union, and both Argentina and Malaysia have ended up with re-nationalisation.
Indeed, the positive roles of state ownership in partially privatised firms and economic
development are found in recent studies. Perotti (1995) adopts a theoretical model and
concludes that governments retaining control in privatised firms is to increase the credibility
of the privatisation programmes, which in turn can achieve both political and economic
goals. In addition, Mok and Hui (1998) argue that state ownership lowers the uncertainty of
the stock market because state ownership itself is a signal of the government’s confidence
in the company, and also provides a business guarantee to individual investors. To
summarise, the positive impacts of state ownership have been documented in these three
aspects; firm performance, legal investor protection environment, and corporate risk-taking.
2.3.1. State ownership and firm performance
Megginson (2005) conducts a comprehensive survey of the impact of privatisation on firm
performance in developed and developing countries, and states that transferring from state
control to private control increases firm performance. It is suggested that state ownership is
detrimental to firm performance (Megginson & Netter, 2001; Shleifer & Vishny, 1998).
However, Boubakri, Cosset, and Guedhami (2005) and D’Souza, Megginson, and Nash (2005)
conduct two similar studies to examine potential determinants of performance
improvements in divested firms of developed and developing countries respectively, and
suggest that there appear to be differences in the potential sources of these performance
improvements. In developed countries, the relinquishment of government control and the
presence of foreign ownership have the most significant impact on post-privatisation
performance improvement. While, in developing countries, environmental factors such as
economic growth, and institutional factors such as stock market development and the
extent of legal protection, are major determinants of post-privatisation performance
improvements. Therefore, the conclusion of state ownership decreasing firm performance is
arbitrary.
Studies including Sun and Tong (2003), Wang (2005), Quan and Huyghebaert (2004), and
Chen, Firth, and Rui (2006) document decreased profitability following the Share Issue
Privatisation (SIP), the first round of privatisation in China. Therefore, state ownership
relinquishment might not increase firm performance in China. Sun, Tong, and Tong (2002)
argue that the Chinese government supports SOEs in three ways. First, partial privatisation
may signal the government’s confidence in the future growth of firms. Second, the
government offers a free hand in efficient monitoring when legal investor protection is weak
in China. Third and last, the government can provide both political and financial back-up,
such as licensing and subsidisation.
It is expected that the interests between state owners and minority shareholders aligns
better after the NTS reform, as the value of state shares is linked with corporate market
performance, which provides an incentive for the government to boost firm performance
(Liao et al., 2014). Liao et al. (2014) find that the NTS reform has significantly increased firm
performance in 1,032 listed firms in China, and the performance improvement of SOEs is
more pronounced due to the political and financial back-up from the government.
Therefore, state ownership is expected to play important and supportive roles for firm
performance improvement, especially after the NTS reform.
2.3.2. State ownership and investor legal protection environment
Apart from the role state ownership plays at the firm specific level, state ownership also
stabilises the institutional environment and the whole financial market. Perotti (2003)
answers the question of why mixed ownership structure is the dominant engine of financial
market development. He argues that partial privatisation remains the most desirable
solution as “state ownership is seen as justified when explicit regulation is hard to
implement because of non-verifiable contingencies” (Perotti, 2003, p.11). Indeed, state
ownership completes contracting and legislation, especially in developing countries with
insufficient legal protection for private property rights, such as in China. Chen et al. (2011)
argue that the property rights of private firms in China are not well-protected by formal
institutions, which gives them a disadvantage in terms of obtaining resources and exposure
to larger corporate performance volatility. They also find that private firms with political
connections out-perform those without political connections. This suggests that political
connections or state shares can be considered as a substitute for formal legal investor
protection. In addition, Vaaler and Schrage (2009) conduct a theoretical model to examine
the impact of residual state ownership on stability and financial performance, and find that
shareholder returns are positively related to residual state ownership. Therefore, in the
absence of a competitive property rights market and a well-functioning legal framework,
state ownership can send positive signals to investors that the government is fully
committed and confident of the companies’ economic fate, which in turn reduces corporate
performance uncertainty and stabilises the whole financial market.
2.3.3. State ownership and corporate risk-taking
Several studies have documented that state ownership is negatively related to corporate
risk-taking. Boubakri et al. (2013) investigate the impact of state ownership in corporate
risk-taking using 381 privatised firms from 26 emerging markets and 31 industrialised
countries over the 1981 to 2007 period. They measure corporate risk-taking in two ways.
One is the volatility of a firm’s earnings over four-year overlapping years; and the other is
the difference between maximum and minimum of ROA over four overlapping years. It is
argued that a powerful government is more likely to be conservative when undertaking risky
investments, in order to stabilise social benefits and employment (Boubakri et al., 2013).
Similarly, Khaw et al. (2016) also document that state ownership is negatively associated
with corporate risk-taking by using Chinese setting over the period of 1999 to 2010. To
achieve stable stock returns and reduce the uncertainty of the stock markets, the
government tends to take less risky investments (Khaw et al., 2016). Although corporate
risk-taking is a fundamental driver of firm performance and development (Faccio, Marchica,
& Mura, 2011; John, Litov, & Yeung, 2008), Khaw et al. (2016) find a negative relationship
between corporate risk-taking and firm performance, as high risk-taking in a poor legal
protection environment is detrimental to firm value enhancement (John et al., 2008).
Therefore, state ownership in countries with poor legal protection and law enforcement,
such as in China, is able to reduce corporate risk-taking, which stabilises corporate
performance fluctuation.
2.3.4. Hypothesis development
The NTS reform converts non-tradable shares to tradable shares, and opens the gate for the
second-round of privatisation in China. It is of high concern whether the Chinese
government will sell a large number of state shares after they can be freely traded in the
markets and cause instability in the financial markets. As an investor whose shares were
purchased at the book value of the firm assets, which is much lower than the market value
of tradable shares, and therefore the Chinese government is offered a good opportunity to
obtain large capital gains following the NTS reform (Cai et al., 2012; Liao et al., 2014).
However, the government’s previous attempts in state ownership sales did not end well
when the markets reacted adversely and the stock market dropped sharply. The Shanghai
and Shenzhen Composite Indexes dropped by 7.3% and 6.8% respectively in 1999, and 31%
and 32.9% respectively in 2001, when the government attempted to privatise state
ownership to raise capital (Liao et al., 2014).
Overseeing the privatisation programmes in China, from the SIP to the NTS reform, it is not
hard to tell that the government is very cautious when it comes to state ownership
relinquishment. Unlike the massive privatisation approach adopted by the Eastern
European nations, the Chinese government uses a partial privatisation strategy, aiming to
improve the SOEs performance by establishing market-oriented incentives while
maintaining state ownership and control in economically important sectors and enterprises
(Liu et al., 2006). In addition, the Chinese government has emphasised repeatedly the
importance of state ownership in economic development. It is stated that instead of
relinquishing state ownership in listed firms, the SOE reform should aim to improve SOEs’
management systems and increase the pace of marketisation, as the SOE is the pillar of the
national economy (The Communist Party of China, 1999, 2012). Therefore, it is expected
that the Chinese government may choose to retain their shares and control for social
stability purpose, even after the state shares become tradable.
Moreover, given the positive roles of state ownership in reducing corporate risk-taking,
improving firm performance, and providing a positive signal in building investors’ confidence
in the financial markets, especially when legal institutions are not in place and law
enforcement is weak, we expect that the state ownership can reduce the uncertainty in the
stock markets followed by the NTS reform. We therefore, have the following hypothesis:
H1: State ownership in China is negatively related to the stock return volatility.
3. Data and variables
3.1. Data description
To investigate the impact of tradable state ownership on corporate performance
uncertainty after the NTS reform, we include firms with state ownership listed on the
Shanghai and Shenzhen Stock Exchanges. The performance data are collected from the
CSMAR China Stock Market Financial database. The firm-level data are collected from the
CSMAR China Listed Firms’ Corporate Governance Research database. Particularly, we hand
collect the tradable state ownership data from Sina Finance (http://finance.sina.com.cn).
The time period of our sample is from the year that the firm become fully tradable to 2014.
We first manually collect the dates that the state shares become fully tradable on for each
individual firms from the CSRC official information disclosure website cninfo
(www.cninfo.com.cn). Then we manually collect the tradable state ownership from Sina
Finance (http://finance.sina.com.cn), which is the sum of the top ten tradable state
ownership. To investigate the impact of the state ownership on stock return volatility after
the NTS reform, we collect the data of the state ownership after the lock-up period expires,
given the complicated state share compensation and reimbursement process during the
lock-up period. We use the observation year as the same year of the announcement of all
the state shares becoming fully tradable if the announcement is made before July. For
example, a firm’s state shares became fully tradable on 11 October, 2006, so the starting
year for this firm is 2007. Our sample period is from 2007 to 2014.
The de-listed firms and the firms that do not implement the NTS reform during the sample
period are excluded. After filtering the outliers at the 1% and 99% levels, the final sample in
our study contains 1,860 listed firms that consist of 6,682 firm-year observations.
Panel A of Table 1 shows the distribution of the sample firm-year observations by year. The
increasing trend of the firm-year observations from 28 in 2007 to 1,412 in 2014
demonstrates that the reformed firms in China gradually achieve full tradability of the state
shares. Panel B of Table 1 shows the distributions of sample firm-year observations by
industry. The industry classification is based on the 2012 CSRC industrial classification of
listed companies and includes 16 industries. In our sample period, 66.06% are in
manufacturing; 9.08% are in wholesale and retail; 5.67% are in electric power, heat, gas and
water; 5.42% are in real estate; and the rest of the firms are from agriculture and forestry
industry, mining, construction, transport, storage and postal services, accommodation,
information transmission, software and information, leasing and commercial service, water
conservancy, environment and public facility management, culture, sports and
entertainment, financial industry and others. Panel C shows the statistical summary of state
ownership from 2007 to 2014. The increasing trend of observations each year illustrates
that the state shares become tradable as time goes by. The average tradable state
ownership in 2007 and 2008 is 8.93% with 28 firm-year observations, and 22.45% with 160
firm-year observations, respectively. From 2009 onwards, the average tradable state
ownerships are all above 30%. It is indicated that firms tend to take a long time to unfreeze
their non-tradable state shares.
[Insert Table 1 about here]
3.2. Stock return volatility measures
Following Pan, Wang, and Weisbach (2015), Irvine and Pontiff (2009), and Li et al. (2011), we
use realised return volatility and idiosyncratic return volatility to measure stock return
volatility. Realised return volatility includes the standard deviation of monthly stock returns
and the standard deviation of market-adjusted monthly stock returns. To estimate
idiosyncratic return volatility, we calculate monthly volatility of residual stock return of
market model regression.
rit = αi + β rmt + εit
Idiosyncratic return volatility is defined as √Var(ε it ) from the above equation.
3.3. Control variables
In analysing the relationship between state ownership and stock return volatility, we control
for several variables that have been previously identified, including firm performance and
governance variables. Sales growth, calculated as the growth rate of annual sales, is
included to measure the firm growth opportunity, which is expected to be positively related
to performance uncertainty (Boubakri et al., 2013). We use return on assets (ROA), calculate
as the ratio of net income to total assets, to measure accounting performance. Shan, Taylor,
and Walter (2014) state that firms with lower ROA are expected to have higher stock return
fluctuation. In addition, we use the valued-weighted annual stock return to measure stock
performance, and Tobin’s Q to represent corporate market performance. The previous
literature supports the positive trade-off between stock returns and stock return volatility
(French, Schwert, & Stambaugh, 1987; Ludvigson & Ng, 2007; Lundblad, 2007). In terms of
the relationship between Tobin’s Q and stock return volatility, we expect a positive
relationship between Tobin’s Q and stock return volatility, as the higher the corporate value
the higher the growth opportunities, which leads to greater fluctuation in stock returns
(Shan et al., 2014; Pan et al., 2015).
In terms of the corporate governance and firm characteristic variables, we include board
independence, board size, leverage, the ratio of intangible assets to total assets, firm size,
and firm age. Board independence (calculated as the ratio of the number of independent
directors to the total number of directors on the board) and board size (calculated as the
natural log of the total number of directors in the board) are expected to be negatively
associated with stock return volatility. Firms with a larger board size and more independent
board are less likely to make extreme decisions, and therefore, lead to less variable
corporate performance (Cheng, 2008). Moreover, higher leverage (the ratio of total debt to
total assets), a higher ratio of intangible assets to total assets, smaller and younger firms are
riskier; therefore, these firms could have higher stock return volatility (Shan et al., 2014).
The detailed description of each variable is shown in Appendix A. Table 2 shows the
summary statistics of the. The average ROA of sample firms is 3.89% with a maximum ratio
of 31.13%. The average leverage ratio is 47.92% and the maximum value reaches 93.83%.
The stock return shows a quite big variance with a minimum ration of -81.8% and a
maximum return of 853.74%. This suggested that we may need to further drop the extreme
values for robustness check.
[Insert Table 2 about here]
Table 3 reports the pairwise correlation matrix of the key variables. The correlation matrix
of the independent variables shows no serious multicollinearity concerns.
[Insert Table 3 about here]
4. Results and discussion
In this section, we present and discuss the results of the impact of state ownership on stock
return volatility. We also present the results of the robustness checks and additional tests.
4.1. State ownership and stock return volatility
To investigate the impact of state ownership on stock return volatility after the NTS reform
in China, we use multivariate regression of panel data with clustered standard errors by
industry, controlling for firm and year fixed-effects, which is a common method to control
for omitted variables in a panel dataset (Massa, Zhang, & Zhang, 2014). The initial regression
specification is as follows3:
Stock return volatilityit = α + β1Stateit + β2Sales growthit + β3ROAit + β4Stock returnit +
β5Tobin’s Qit + β6Board independenceit + β7Board sizeit + β8Leverageit +
β9Intangible/assetsit + β10Firm sizeit + β11Firm ageit + Ɛit
Table 4.1 reports the results of the above regression model. The state ownership variable is
significantly and negatively associated with stock return volatility in Models 2 and 3
3 We control the effect of institutional ownership on stock return volatility by adding the share percentage of fund investors and Qualified Foreign Institutional Investor (QFII) as the proxies of institutional ownership. We find institutional ownership is not significantly related to the stock return volatility. Thus the results are not shown.
consistently at the 1% level, and the effect is significant at the 5% level in Model 1.
Moreover, the state ownership is economically significant with magnitudes of -0.0873, -
0.1262, and -0.13094 in each of the three models, respectively. That is, a 1% decrease in
state ownership increases by 0.0873%, 0.1262%, and 0.1309% the standard deviation of
monthly stock returns, standard deviation of market-adjusted monthly stock returns, and
standard deviation of idiosyncratic returns, respectively. It is revealed that the state
ownership after the NTS reform can effectively reduce the volatility of stock return, which in
turn stabilises the Chinese stock markets.
In addition, ROA is significantly and negatively associated with stock return volatility in the
three models. This is consistent with the findings of Dutt and Humphery-Jenner (2013) and
Cheng (2008), which indicate that firms with better accounting performance tend to have
less market performance volatility. We also find that stock return is significantly and
positively related to stock return volatility at the 10% level. This finding is supported by the
positive return and risk trade-off theory (French et al., 1987; Ludvigson & Ng, 2007;
Lundblad, 2007). Other variables are not statistically significant in the three models.
[Insert Table 4.1 about here]
Further, we separate the full sample into SOEs and non-SOEs based on whether the ultimate
controller is the state or a non-state entity. The results are shown in Table 4.2 and Table 4.3.
The state ownership in SOEs can significantly reduce the stock return volatility at 1%
significant level in all three models shown in Table 4.2. While, state ownership in non-SOEs
has no significant impact on the stock return volatility.
4 We use the formula; standard deviation of the independent variable multiplied by the coefficient of the independent variable divided by the standard deviation of the dependent variable; to calculate the economic significance of an independent variable.
[Insert Table 4.2 about here]
[Insert Table 4.3 about here]
4.2. Endogeneity
The negative relationship between state ownership and stock return volatility may be
subject to endogeneity bias. Previous studies including Boubakri, Cosset, Guedhami, and
Saffar (2011) and Li and Yamada (2015) find that governments are more likely to retain state
shares in big and less risky firms. We therefore use a system dynamic panel Generalised
method of moments (GMM) model, introduced by Arellano and Bover (1995) and Blundell
and Bond (1998), to address the possible endogeneity issue. The GMM test includes one lag
of the dependent variable as covariates and contains unobserved panel-level effects, fixed
at both the firm and year levels. The results of the dynamic panel GMM model are shown in
Table 5. State ownership variables are still significant at the 10% level in all three models.
The results indicate that state ownership is negatively associated with stock return volatility,
which stabilises the financial markets. This confirms that our findings are robust to the
causality concern.
Stock returns are positively significant in all three models, which implies the positive
relationship between risk and return. We also find Tobin’s Q is positively related to stock
return volatility at the 1% significance level in both Model 2 and Model 3. This is consistent
with the findings of Shan et al. (2014) and Pan et al. (2015). Similarly, firm size is positively
and significantly related to stock return volatility, which indicates that large firms are more
likely to have large stock return variation. In addition, firm age is found to have a negative
relationship with stock return volatility at the 1% significance level in both Model 2 and
Model 3. It is indicated that younger firms are risker, which is consistent with the findings of
Cheng (2008) and Shan et al. (2014).
[Insert Table 5 about here]
We also employ a difference-in-difference approach to address the endogeneity bias. In
Table 6, it can be seen that state ownership change variable is negatively and significantly
related to stock return volatility at the 1% level in the three models. That is, the decrease of
state ownership by 1% leads to a 0.0048%, 0.0086%, and 0.0087% increase in standard
deviation of monthly stock returns, standard deviation of market-adjusted monthly stock
returns, and standard deviation of idiosyncratic returns, respectively. The change of sales
growth ratio is significantly and positively related to stock return volatility at the 1% level. It
is shown that firms with increased growth opportunity are more likely to have increased
stock return volatility. In addition, the changes of Tobin’s Q and firm size are both positively
related to the change of stock return volatility, which illustrates a positive relationship
between corporate market value and stock return volatility. The changes of board
independence and board size both have negative relationships with stock return volatility
change at the 5% or 10% significance level, which is consistent with Cheng (2008)’s findings
that more independent boards and larger boards can lower variability of corporate
performance.
[Insert Table 6 about here]
4.3. The government decision on privatisation
To further examine whether it is the Chinese government’s intension to maintain state
shares in privatised firms after the NTS reform, we also conduct a logistic test to find the
determinants of privatisation decision-making. The initial regression is as follows:
State controlit = α + β1Labourit + β2Weighted MCit + β3Sizeit + β4Leverageit + β5ROAit +
β6Non-tradableit + β7MBit + β8Tax to salesit + β9RPTit + β10GDP per capitalit + β11GDP
growth rateit + Ɛit
The dependent variable “State control” is a dummy variable, which equals one if the state is
the ultimate controller of a firm, and otherwise zero. In terms of the independent variables,
we follow Li and Yamada (2015) by using labour intensity (Labour) as one of the proxies for
social stability. Li and Yamada (2015) argue that the social security system for workers
outside the SOEs is weak in China. In order to maintain social stability, the government has
to control SOEs to keep the employment level high. Therefore, labour intensity is expected
to have a positive relationship with state control. We also use industry-weighted market
capitalisation (Weighted MC), firm size (size), ROA, and firm leverage (Leverage) as the
proxies of social stability, following Cosset, Durnev, and Santos (2015). It is argued that
governments tend to retain high ownership in industry-leading firms to stabilise the
business environment (Ng, Yuce, and Chen, 2009). In addition, bigger firms, under-
performing firms, and highly leveraged firms tend to be controlled by the government for
reasons of social stability (Boubakri et al., 2011; Cosset et al., 2015). Therefore, it is
suggested that the expectation sign of industry-weighted market capitalisation, firm size,
and firm leverage are positive, and that of ROA is negative. For the control variables, we use
the percentage of non-tradable shares, MB ratio, tax to sales ratio, and a related party
transaction (RPT) dummy variable, which equals one if firms have related party transactions
with local governments, bureaus of state-owned assets and departments of finance, and
otherwise zero. In addition, we control for macroeconomic factors by using GDP per capita
and GDP growth rate.
Table 7 represents the logistic test results, showing that the government is less likely to
relinquish the state shareholding in high labour intensity, large, and under-performing firms.
The variables Labour, Size, and ROA are all significantly associated with State control. The
results are consistent with the findings of Boubakri et al. (2011) and Li and Yamada (2015).
In addition, the negative relationship between GDP per capital and state control indicates
that the government tends to retain the state ownership in firms in less-developed
provinces. Industries like electric power, heat, gas and water; transport, storage and postal
services; and water conservancy, environment and public facility management are strategic
industries that the government holds shares in for reasons of national security, which is
consistent with the study of Li and Yamada (2011). All in all, the results reveal that the
government has a strong motivation to maintain the social stability after the NTS reform,
which in turn stabilises the Chinese economy.
[Insert Table 7 about here]
To gain further understanding of the motivation of the Chinese government in maintaining
residual state ownership after the NTS reform, we replace the dummy variable state control
with the residual state ownership after all state shares become tradable in individual firms.
The multivariate test results are shown in Table 8. In Model 1, we use the full sample with
6,411 firm-year observations. Models 2 and 3 are subsample analyses based on whether the
ultimate controller is the state or a non-state entity. The weighted MC variables are
positively significant in three models; firm size is positively significant at the 1% level in
Models 1 and 2. The results are robust in supporting our findings that the government tends
to retain shareholding in industry-leading and large firms to reduce uncertainty in the
Chinese stock markets.
[Insert Table 8 about here]
4.4. The government decision on reform speed
As well as the analysis of the effects of the government’s incentives on the degree of
privatisation along with the reform, we also adopt Cox-hazard regression analysis to
investigate the determinants of the speed of the NTS reform, as the time period of the
reform could demonstrate the government’s desire for privatisation. The initial regression
specification for the Cox-hazard regression is as follows:
h(t) = h0(t) exp (β1x1 + β2x2 +· · ·+βkxk)
The dependent variable h(t) is the number of days, starting from the reform date of
individual firms, to the announcement date when all the reform shares become tradable.
The Cox-hazard model results are displayed in Table 9. The dummy variable state control is
significantly and negatively associated with the number of days that a firm becomes fully
tradable. This suggests that firms with state as the ultimate controller are more likely to
take a longer time to finish the full reform process. Moreover, firms with higher labour
intensity, large size, and highly leverage tend to have a longer reform process. The results
reveal that the government does have concerns regarding economy stability when carrying
out the NTS reform.
[Insert Table 9 about here]
5. Conclusion
In this paper, we reply on a manually collected unique database where the state ownership
is fully tradable. Our results show that tradable state ownership can significantly reduce the
stock return volatility, which is measured by monthly stock return volatility, monthly
market-adjusted stock return volatility, and idiosyncratic return volatility. Our results hold
not only for firm-year fixed effects with standard errors clustered by industry, but also for
endogeneity tests, by using the system dynamic GMM test and difference-in-difference
approach. Second, we find that the government tends to retain control and shares in
economically strategic firms, such as high labour intensity, industry-leading, large, and
under-performing firms. Finally, our results indicate that it takes the longer time to convert
non-tradable shares to tradable shares in firms controlled by the state, and in high labour
intensity, industry-leading, and large firms, in order to maintain economic stability.
The findings suggest that, when facing the opportunity of trading state shares to potentially
gain large price appreciation, the Chinese government chooses to retain the state shares
and control in economically strategic firms to stabilise the financial markets. In addition, the
positive role of state ownership in reducing the volatility of stock return provides broad
implications for policy makers’ decisions on further privatisation strategies.
Appendix A defines the variables used in this study.Variable DefinitionStandard deviation of monthly stock return Standard deviation of monthly stock returnStandard deviation of market-adjusted monthly stock return
Standard deviation of the difference between monthly stock return and average market stock return
Standard deviation of Idiosyncratic return volatility Standard deviation of residuals from a market model regression
State Total tradable state ownershipState control A dummy variable which equals one if the ultimate
controller of a firm is the stateSales growth The growth rate of annual salesROA The ratio of net income to total assetsBoard independence The ratio of the number of independent directors to
the total number of directors on the boardBoard size The natural log of the total number of directors in
the boardLeverage The ratio of total debt to total assetsStock return The annual stock returnsTobin’s Q The ratio of the sum of market equity and total
book liability to the total assets; Intangible/assets is the ratio of total intangible assets to total assets
Intangible/assets The ratio of intangible assets to total assetsFirm size The natural log of the total market capitalisation of
the firmFirm age The natural log of the number of years from the
establishment of the firm to the year of observationLabour The total number of workers divided by total asset,
scaled by 106
Weighted MC The industry weighted market capitalisationNon-tradable
MB
The ratio of number of non-tradable shares to total number of sharesThe market to book equity ratio
Tax to sales The ratio of tax expense to total salesRPT A dummy variable which equals to one if firms have
related party transactions with local governments, bureaus of state-owned assets and departments of finance, otherwise zero
GDP per capita The provincial GDP per capita based on the location of the headquarters of a firm
GDP growth rate The provincial GDP growth rate based on the location of the headquarters of a firm
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Table 1. Distribution of sample firmsThis table reports the distribution of sample over the sample period from 2007 to 2014. Panel A reports the distribution of 6682 sample firm-year observations by year. Panel B reports the distribution of 6682 sample firm-year observations by Industry. Panel C shows the time trend of the firms included into the sample.Panel A: By yearYear Firm-year observation Percentage (%)2007 28 0.422008 160 2.392009 447 6.692010 882 13.202011 1139 17.052012 1263 18.902013 1351 20.222014 1412 21.13Total 6682 100Panel B: By industry5
Industry Firm-year observation Percentage (%)Agriculture, forestry 81 1.21Mining 120 1.80Manufacturing 4414 66.06Electric power, heat, gas and water 379 5.67Construction 102 1.53Wholesale and retail 607 9.08Transport, storage and postal services 246 3.68Accommodation 25 0.37Information transmission, software and information technology services 83 1.24Financial 16 0.24Real estate 362 5.42Leasing and commercial service 33 0.49Water conservancy, environment and public facility management 57 0.85Culture, sports and entertainment 60 0.90Others 97 1.45Total 6682 100
Panel C: The time trend of sample firms included into the sample.Year Observation Mean Min Max2007 28 0.0893 0.0027 0.43862008 160 0.2245 0.0025 0.79102009 447 0.3185 0.0022 0.79002010 882 0.3006 0.0022 0.79452011 1139 0.3018 0.0023 0.7974
5 The industry classification is based on the 2012 CSRC industrial classification of listed companies with 15 industries. For more details please refer to CSRC, 2012. Beijing: The Guidelines for the Industrial Classification of Listed Companies (No. 31).
2012 1263 0.3047 0.0022 0.79742013 1351 0.3177 0.0023 0.79712014 1412 0.3001 0.0022 0.7971
Table 2. Descriptive statisticsThis table reports the summary statistics of the variables included in the analysis for a sample of 1860 listed firms that consists 6682 firm-year observations. The description of each variable is summarized in Appendix A.Variables Observation Mean Standard deviation Min MaxStandard deviation of monthly stock return 6682 0.1267 0.0822 0.0268 3.6307Standard deviation of market-adjusted monthly stock return 6682 0.0981 0.0682 0.0187 3.3207Standard deviation of idiosyncratic return 6682 0.0980 0.0682 0.0185 3.3216Sales growth 6682 0.2079 0.6719 -0.9777 14.3528Board Independence 6682 0.3672 0.0535 0.1429 0.7143Board size 6682 2.1959 0.1987 1.3863 3.0910ROA 6682 0.0389 0.0500 -0.6515 0.3113Leverage 6682 0.4792 0.2089 0.0478 0.9383Stock return 6682 0.2044 0.6009 -0.8187 8.5374Tobin's Q 6682 1.7577 1.1644 0.3184 15.0649Intangible/assets 6682 0.0484 0.0726 0.0000 0.8950Firm size 6682 22.3386 1.0039 19.8477 27.8925Firm age 6682 2.6834 0.3952 0.6931 3.5553
Table 3. Correlation matrix of the identified variablesThe correlation matrix of the variables for the sample of 1,860 listed firms with 6,682 firm-year observations are presented in this table. The description of each variable is summarized in Appendix A.
Standard deviation of monthly stock return
Standard deviation of market-adjusted monthly stock return
Standard deviation of idiosyncratic return State
Sales growth
Board independent
Board size ROA Leverage
Stock return
Tobin's Q Intangible/assets
Firm size
Firm age
Standard deviation of monthly stock return 1.0000Standard deviation of market-adjusted monthly stock return 0.7620 1.0000Standard deviation of idiosyncratic return 0.7619 0.9991 1.0000
State -0.0430 -0.0321 -0.0313 1.0000
Sales growth -0.0020 0.0006 0.0006 0.0098 1.0000Board independent -0.0082 -0.0066 -0.0067
-0.0041
-0.0085 1.0000
Board size -0.0609 -0.0555 -0.0532 0.2014 0.0001 -0.3563 1.0000
ROA -0.0209 -0.0081 -0.0073-
0.0438 0.0001 -0.0283 0.0080 1.0000
Leverage 0.0105 0.0170 0.0201 0.2329 0.0102 0.0184 0.1358-
0.3893 1.0000
Stock return 0.3670 0.4116 0.4167-
0.0025-
0.0034 -0.0069-
0.0158 0.0525 0.0389 1.0000
Tobin's Q 0.0955 0.1750 0.1755-
0.0534-
0.0071 0.0042-
0.1015 0.1646 -0.1970 0.2707 1.0000
Intangible/assets -0.0247 -0.0219 -0.0223 0.0457 0.0097 -0.0210 0.0202-
0.0170 -0.0472-
0.0062 0.0537 1.0000
Firm size -0.0350 0.0286 0.0305 0.2793-
0.0094 0.0745 0.2500 0.2574 0.1450 0.2117 0.0342 -0.01501.000
0
Firm age -0.0543 0.0173 0.0176 0.0992 0.0195 -0.0247 0.0327-
0.1050 0.2635 0.0159 0.0421 0.02690.064
9 1.0000This table reports the correlation matrix of variables for the sample with 6,682 firm-year observations over the sample period from 2007 to 2014.
Table 4.1. State ownership and stock return volatility (full sample)(Clustered by standard error of industry)This table presents the results of the relationship between state ownership and volatility of corporate market performance of the Chinese listed firms from 2007 to 2014. The regression model is as below:
Stock return volatilityit = α + β1Stateit + β2Sales growthit + β3ROAit + β4Stock returnit + β5Tobin’s Qit + β6Board independenceit + β7Board sizeit + β8Leverageit + β9Intangible/assetsit + β10Firm sizeit + β11Firm ageit + Ɛit
The definitions of all the variables are shown in Appendix A. A superscript *, ** or *** denotes significance at the 10%, 5% or 1%, respectively. All models are fixed at firm and year level with standard error of industry clustered.Dependent variable Expected
signsStandard
deviation of monthly stock
return
Standard deviation of market-adjusted
monthly stock return
Standard deviation of idiosyncratic
return
Independent variables (1) (2) (3)
Intercept 0.0218(0.07)
0.0212(0.07)
0.0149(0.05)
State - -0.0311**(-2.73)
-0.0373***(-3.62)
-0.0387***(-4.02)
Sales growth + -0.0000(-0.36)
0.0000(0.24)
0.0000(0.43)
ROA - -0.0414*(-1.83)
-0.0432***(-3.33)
-0.0410***(-3.13)
Stock return + 0.0486(1.63)
0.0585*(2.05)
0.0585*(2.05)
Tobin’s Q + -0.0007(-0.19)
0.0013(0.37)
0.0014(0.40)
Board independence - -0.0141(-1.09)
-0.0031(-0.18)
-0.0020(-0.12)
Board size - -0.0098(-1.29)
-0.0121(-1.15)
-0.0116(-1.09)
Leverage + 0.0083(0.34)
0.0020(0.10)
0.0026(0.12)
Intangible/assets + 0.0274(1.38)
0.0291(1.66)
0.0301(1.22)
Firm size - 0.0057(0.37)
0.0064(0.40)
0.0061(0.38)
Firm age - -0.0090(-0.69)
-0.0174(-1.12)
-0.0133(-0.86)
Observation 6682 6682 6682Firm fixed effect Yes Yes YesYear fixed effect Yes Yes YesR-squared 0.2938 0.2596 0.2642
35
Table 4.2. State ownership and stock return volatility (SOEs)(Clustered by standard error of industry)This table presents the results of the relationship between state ownership and volatility of corporate market performance of the Chinese listed firms from 2007 to 2014. The regression model is as below:
Stock return volatilityit = α + β1Stateit + β2Sales growthit + β3ROAit + β4Stock returnit + β5Tobin’s Qit + β6Board independenceit + β7Board sizeit + β8Leverageit + β9Intangible/assetsit + β10Firm sizeit + β11Firm ageit + Ɛit
The definitions of all the variables are shown in Appendix A. A superscript *, ** or *** denotes significance at the 10%, 5% or 1%, respectively. All models are fixed at firm and year level with standard error of industry clustered.Dependent variable Expected
signsStandard
deviation of monthly stock
return
Standard deviation of market-adjusted
monthly stock return
Standard deviation of idiosyncratic
return
Independent variables (1) (2) (3)
Intercept 0.5901(1.01)
0.6113(1.03)
0.6272(1.06)
State - -0.0534***(-5.03)
-0.0551***(-4.57)
-0.0055***(-4.65)
Sales growth + 0.0000(0.72)
0.0000**(2.21)
0.0000**(2.53)
ROA - -0.0484(-1.25)
-0.0506(-1.33)
-0.0483(-1.28)
Stock return + 0.0758(1.71)
0.0817*(1.86)
0.0818*(1.86)
Tobin’s Q + -0.0040(-0.86)
-0.0007(-0.16)
-0.0007(-0.16)
Board independence - -0.0003(-0.01)
0.0006(0.02)
0.0043(0.17)
Board size - -0.0106(-0.88)
-0.0106(-1.19)
--0.0100(-1.16)
Leverage + 0.0034(0.07)
-0.0161(-0.37)
-0.0158(-0.36)
Intangible/assets + 0.0753(1.55)
0.0785(1.38)
0.0805(1.44)
Firm size - -0.0103(0.39)
-0.0106(-0.37)
-0.0108(-0.38)
Firm age - -0.0235(-1.24)
-0.0617***(-4.38)
-0.0620***(-4.44)
Observation 3954 3954 3954Firm fixed effect Yes Yes YesYear fixed effect Yes Yes YesR-squared 0.3100 0.2962 0.2996
36
Table 4.3. State ownership and stock return volatility (Non-SOEs)(Clustered by standard error of industry)This table presents the results of the relationship between state ownership and volatility of corporate market performance of the Chinese listed firms from 2007 to 2014. The regression model is as below:
Stock return volatilityit = α + β1Stateit + β2Sales growthit + β3ROAit + β4Stock returnit + β5Tobin’s Qit + β6Board independenceit + β7Board sizeit + β8Leverageit + β9Intangible/assetsit + β10Firm sizeit + β11Firm ageit + Ɛit
The definitions of all the variables are shown in Appendix A. A superscript *, ** or *** denotes significance at the 10%, 5% or 1%, respectively. All models are fixed at firm and year level with standard error of industry clustered.Dependent variable Expected
signsStandard
deviation of monthly stock
return
Standard deviation of market-adjusted
monthly stock return
Standard deviation of idiosyncratic
return
Independent variables (1) (2) (3)
Intercept -0.1913***(-3.44)
-0.2388***(-6.45)
-0.2429***(-6.09)
State - 0.0092(0.41)
0.0047(0.43)
0.0039(0.37)
Sales growth + 0.0006(1.23)
0.0010***(4.80)
0.0010***(4.47)
ROA - -0.0449(-1.50)
-0.0572***(-3.33)
-0.0547***(-3.27)
Stock return + 0.0123***(5.99)
0.0310***(17.12)
0.0305***(17.54)
Tobin’s Q + 0.0038***(3.98)
0.0035**(2.94)
0.0036***(3.10)
Board independence - -0.0041(-0.53)
0.0137(1.38)
0.0102(1.10)
Board size - -0.0237***(-4.27)
-0.0344***(-5.89)
-0.0343***(-5.60)
Leverage + 0.0105(1.27)
0.0153**(2.61)
0.0163**(2.75)
Intangible/assets + -0.0343**(-2.24)
-0.0323(-1.32)
-0.0315(-1.28)
Firm size - 0.0218***(12.59)
0.0210***(17.99)
0.0209***(16.47)
Firm age - -0.0204***(-4.78)
-0.0229***(-5.72)
-0.0161***(-3.49)
Observation 2728 2728 2728Firm fixed effect Yes Yes YesYear fixed effect Yes Yes YesR-squared 0.4396 0.2961 0.3079
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Table 5. Endogeneity test of the state ownership and stock return volatility: Dynamic GMM test (full sample) This table represents the dynamic-panel GMM results of the relationship between state ownership and volatility of corporate market performance of the Chinese listed firms from 2007 to 2014. The definitions of all the variables are shown in Appendix A. A superscript *, ** or *** denotes significance at the 10%, 5% or 1%, respectively. All models are fixed at firm and year level.Dependent variable
Expected signs
Standard deviation of
monthly stock return
Standard deviation of market-adjusted
monthly stock return
Standard deviation of idiosyncratic return
Independent variables
(1) (2) (3)
Intercept -0.2167** -0.1061 -0.1158(-2.35) (-1.06) (-1.16)
Dependent variable-1
0.0129(0.99)
0.0076(0.60)
0.0056(0.45)
State - -0.0245*(-1.84)
-0.0318*(-1.85)
-0.0306*(-1.79)
Sales growth + 0.0005(0.37)
0.0007(0.47)
0.0006(0.46)
ROA - -0.0212(-0.82)
0.0109(0.42)
0.0124(0.48)
Stock return + 0.0361***(15.78)
0.0394***(16.67)
0.0392***(16.67)
Tobin’s Q + 0.0022(1.53)
0.0042***(2.87)
0.0043***(2.99)
Board independence
- -0.0237(-0.76)
-0.0304(-0.97)
-0.0282(-0.91)
Board size - -0.0106(-0.89)
-0.0045(-0.37)
-0.0034(-0.28)
Leverage + 0.0091(0.72)
0.0087(0.68)
0.0095(0.76)
Intangible/assets + -0.0431(-1.17)
-0.0304(-0.97)
-0.0149(-0.41)
Firm size - 0.0171***(4.90)
0.0153****(4.10)
0.0158***(4.25)
Firm age - -0.0150(-0.83)
-0.0456***(-2.56)
-0.0474***(-2.66)
Observation 4615 4615 4615Firm fixed effect Yes Yes YesYear fixed effect Yes Yes Yes
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Table 6. Endogeneity test of the state ownership and stock return volatility: Difference in difference approach (full sample) This table represents results of the difference in difference regression analysis. The regression model is as below:
∆Stock return volatilityit = α + β1∆Stateit + β2∆Sales growthit + β3∆ROAit + β4∆Stock returnit + β5∆Tobin’s Qit + β6∆Board independenceit + β7∆Board sizeit + β8∆Leverageit + β9∆Intangible/assetsit + β10∆Firm sizeit + β11∆Firm
ageit + Ɛit
The definitions of all the variables are shown in Appendix A. A superscript *, ** or *** denotes significance at the 10%, 5% or 1%, respectively. All models are fixed at industry and year level with standard error of firm clustered.Dependent variable Expected
signs∆Standard
deviation of monthly stock
return
∆Standard deviation of
market-adjusted monthly stock
return
∆Standard deviation of idiosyncratic
return
Independent variables (1) (2) (3)
Intercept -0.4533*** -0.7242*** -0.7579***(-12.31) (-9.33) (-10.09)
∆State - -0.0048***(-3.26)
-0.0086***(-3.80)
-0.0087***(-3.88)
∆Sales growth + 0.0003***(2.87)
0.0004**(2.05)
0.0005**(2.17)
∆ROA - -0.0022(-1.23)
-0.0040(-1.44)
-0.0039(-1.41)
∆Stock return + -0.0002(-0.31)
-0.0006(-0.44)
-0.0005(-0.40)
∆Tobin’s Q + 0.0357*(1.85)
0.0735**(2.32)
0.0729**(2.29)
∆Board independence - -0.1206*(-1.71)
-0.2230**(-1.99)
-0.1991*(-1.79)
∆Board size - -0.3996*(-1.79)
-0.7503**(-2.27)
-0.7437**(-2.27)
∆Leverage + 0.0293(1.03)
0.0564(1.25)
0.0549(1.21)
∆Intangible/assets + -0.0030*(-1.69)
-0.0044**(-1.97)
-0.0044*(-1.90)
∆Firm size - 10.1288***(14.91)
18.7660***(9.96)
18.8161***(17.47)
∆Firm age - 0.1955(0.97)
-0.2015(-0.68)
-0.0713(-0.23)
Observation 4408 4408 4408Industry fixed effect Yes Yes YesYear fixed effect Yes Yes YesR-squared 0.1829 0.1734 0.1766
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Table 7. The determinants of privatisation decision making: logistic test (Full sample) This table represents the logistic regression results of the determinants of the privatisation decision-making process in the Chinese listed firms from 2007 to 2014. The regression model is as below:
State controlit = α + β1Labourit + β2Weighted MCit + β3Sizeit + β4Leverageit + β5ROAit + β6Non-tradable + β7MBit + β8Tax to salesit + β9RPTit + β10GDP per capitalit + β11GDP growth rateit + Ɛit
The dependent variable is a dummy variable, which equals 1 if a firm’s ultimate controlling shareholder is the state, and zero otherwise. The definitions of all the variables are shown in Appendix A. A superscript *, ** or *** denote the significance levels of 10%, 5% or 1%, respectively.
Independent variables State control
Intercept -4.0781***(-2.85)
Labour 0.0711*(1.69)
Weighted MC 2.7473(1.37)
Size6 0.4776***(12.96)
Leverage 0.1710(0.86)
ROA -2.4089***(-3.48)
Control variables
Non-tradable
MB
-2.1388***(-16.59)0.0057(0.43)
Tax to sales -0.8772(-0.67)
RPT 0.6064**(2.22)
GDP per capita -0.6259***(-6.68)
GDP growth rate 0.5207(0.40)
Agriculture, forestry 0.6806*(1.92)
Mining -0.2162(-0.60)
Manufacturing -0.6309**(-2.22)
Electric power, heat, gas and water 1.0338***(4.00)
Construction 0.1550(0.49)
Wholesale and retail 0.4081(1.35)
Transport, storage and postal services 1.6694***(5.49)
Accommodation 1.8637***(2.75)
Information transmission, software and information 0.1938
6 The results are very similar when using the natural logarithm of total market capitalisation instead of total assets; the only difference is that the MB ratio becomes negatively significant at the 1% level.
40
technology services (0.59)
Financial 0.1621(0.28)
Real estate 0.1405(0.56)
Leasing and commercial service 1.7295**(2.19)
Water conservancy, environment and public facility management
2.1822***(3.85)
Culture, sports and entertainment -1.1900***(-2.99)
Year fixed effect YESIndustry fixed effect YESObservation 6411Log likelihood -3345.1812Pseudo R-square 0.2143
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Table 8. The determinants of privatisation decision-making, robustness analysisThis table represents the results of the determinants of the privatisation decision-making process in the Chinese listed firms from 2007 to 2014. We include the firms with fully tradable state ownership. The regression model is as below:
Stateit = α + β1Labourit + β2Weighted MCit + β3Sizeit + β4Leverageit + β5ROAit + β6Non-tradable + β7MBit + β8Tax to salesit + β9RPTit + β10GDP per capitalit + β11GDP growth rateit + Ɛit
The dependent variable is the tradable state ownership. Model 1 shows the full sample results. Model 2 shows the results of sample with state as the ultimate controller. Model 3 shows the results of the sample with controller from the private sector. The definitions of all the variables are shown in Appendix A. A superscript *, ** or *** denote the significance levels of 10%, 5% or 1%, respectively. All models are fixed at industry and year level with standard error of firm clustered.
Independent variables State(full sample)
(1)
State(state controller)
(2)
State(non-state controller)
(3)Intercept -0.7299*** -0.5449*** -0.3168
(-3.59) (-2.76) (-1.08)Labour -0.0014
(-0.36)0.0045*
(1.67)-0.0085(-0.74)
Weighted MC 0.9787***(3.69)
0.5831**(2.49)
1.7387***(3.95)
Size7 0.0430***(7.69)
0.0388***(7.20)
-0.0048(-0.49)
Leverage 0.0464(1.46)
-0.0167(-0.53)
0.1329***(2.79)
ROA -0.1260(-1.28)
-0.0925(-0.94)
0.0289(0.21)
Control variables
Non-tradable
MB
-0.1150***(-5.62)-0.0005(-0.25)
-0.0606**(-2.34)-0.0007(-0.33)
-0.0254(-1.06)-0.0009(-0.36)
Tax to sales 0.3439*(1.72)
0.5749***(3.09)
0.0640(0.22)
RPT 0.0373(1.57)
-0.0029(-0.13)
0.1247**(2.05)
GDP per capita -0.0041(-0.28)
-0.0022(-0.16)
0.0530***(2.65)
GDP growth rate -0.1390(-0.88)
0.0639(0.43)
-0.5928***(-2.67)
Year fixed effect YES YES YES
Industry fixed effect YES YES YES
Observation 6411 3974 2437
R-square 0.1224 0.1357 0.0663
Table 9. The speed of the NTS reform: Cox-hazard model 7 The results are very similar when using the natural logarithm of total market capitalisation instead of total assets; the only difference is that the MB ratios become negatively significant at the 1% level in both the full sample and state-owned sample.
42
The table represents the Cox-hazard model results of the speed of the privatisation decision-making process in the Chinese listed firms from 2007 to 2014. The figures in the brackets are z-values of the independent variables. We include the firms with fully tradable state ownership. The dependent variable is the number of days from the date of the reform announcement to the date that state ownership becomes fully tradable. The definitions of all the variables are shown in Appendix A. A superscript *, ** or *** denote the significance levels of 10%, 5% or 1%, respectively.
Dependent variables: The number of days between the reform announcement date and the fully tradability dateIndependent variables Hazard ratio
State control 0.8498**(-2.30)
Labour 0.9188***(-3.35)
Weighted MC 3.8707(1.29)
Size8 0.8486**(-2.54)
Leverage 1.7054**(2.24)
ROA
Non-tradable
MB
0.5167(-0.92)1.0915(1.28)
0.9601**(-2.07)
Tax to sales 0.2014(-1.64)
RPT 1.2275(0.57)
GDP per capita 1.0000**(-2.43)
GDP growth rate 0.3773(-1.10)
Observation 1018
Log likelihood -6018.3960
8 The results are very similar when using a natural logarithm of total market capitalisation instead of total assets.
43