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Sahel Analyst: ISSN 1117-4668 Page 86
IMPACT OF WORKING CAPITAL MANAGEMENT ON
PROFITABILITY OF QUOTED CEMENT MANUFACTURING
COMPANIES IN NIGERIA
Bulus Jonah Saidu1
Juliet Mbanaso1
Mohammed Dahiru1
Abstract
The study assesses the impact of working capital management on the profitability
of quoted Cement Manufacturing Companies in Nigeria. It particularly
investigates Inventory Conversion Period (ICP), Accounts Collection Period
(ACP), Accounts Payment Period (APP) and Cash Conversion Cycle (CCC).
Data from the four (4) quoted cement manufacturing companies in Nigeria for
the period of eight (8) years (2009 to 2016) were analysed using descriptive
statistics (Mean) and inferential statistics (multiple regression analysis). The
study found a significant impact of inventory conversion period, accounts
collection period, accounts payment period, and cash conversion cycle on the
profitability of quoted cement manufacturing companies in Nigeria. The study
recommends that financial managers of the companies under investigation should
maximise their shareholders wealth by reducing the cash conversion cycle and to
utilise the longer period taken by accounts payment period in order to improve
their shareholders wealth.
Keywords: Inventory conversion period, Accounts collection period, Accounts
payment period, Cash conversion cycle, Working capital
management, Profitability.
Introduction
The global financial crisis of 2008 has affected the profitability of many firms
around the globe especially in the area of working capital management, which is
the life blood of every business organisation. Looking at cement manufacturing
industry, rising infrastructural development in the developing countries has led to
the increase in global demand for cement, Nigeria has the largest demand for
cement in sub-Saharan Africa and about 95 per cent of the inputs for cement
production are sourced locally (Wale, 2011). Thus, attention was drawn to
working capital management components such as cash, inventory, accounts
receivable and accounts payable in order to take the necessary measures to guard
against liquidation especially in the cement manufacturing firm that has the
1 Department of Banking and Finance, University of Maiduguri, Borno State
African Journal of Management (Vol.2, No.4, 2017), Business Admin. University of Maiduguri
Sahel Analyst: ISSN 1117- 4668 Page 87
combination of intensive labour and capital. Cement manufacturing companies
require a large amount of current assets and current liabilities with heavy
automation and machineries to be deployed in running the day to day business
activities of the company which will enable them to maximise profit.
Working capital management has a significant influence on the liquidity of
cement manufacturing companies which can affect their profitability (Paul &
Agbo, 2014). While holding too much liquidity means that some funds that can
be reinvested in marketable securities are kept idle, that is, extra funds held up in
inventories, accounts receivables or cash are often left idle and can neither
promote marketable activities nor hiring or acquisition of desired assets. On the
other hand, low working capital can account for inefficiencies in the firms’
operation. This is done where Inventories are the product a company is
manufacturing for sale and the components that make up the product (Paul &
Agbo, 2014). Inventory conversion period can be seen as the time interval taken
from the acquisition of raw material, to the production process popularly known
as work in progress down to the sale of the final product. This is calculated by
taking the value of stock from the current assets side of the balance sheet and
dividing it by cost of sales per day, the cost of sales per day is equal to cost of
sales multiply by three hundred and sixty-five days which is the number of day in
a year (Pandy, 2010). Account collection period is the time interval which goods
are sold on credit to the time that cash is received, this is calculated by taking the
debtors in the current assets side of the balance sheet and dividing it by revenue
per day; the revenue per day is equal to revenue multiply by three hundred and
sixty-five days (Biradawa, 2017). Accounts Payment Period is the time interval
taken by a manufacturer to repay his obligations or to pay his suppliers for the
goods bought on credit. This is calculated by taking the figure of creditors from
the current liabilities side of balance sheet and dividing it by cost of sales per day
(Pandy, 2010). Finally, Kurfi (2005) looked at cash conversion cycle as the time
interval from the sale of goods on cash and on credit to the time that all cash are
received. This is calculated by inventory conversion period plus accounts
collection period minus accounts payment period.
Profitability is the ability to create an excess of revenue over expenses in order to
attract and retain investment capital (Eljelly, 2004). Therefore, cement
manufacturing companies are heavily dependent on the management of working
capital because an inefficient working capital might lead to illiquidity or financial
crisis. The firm’s profitability can be measured by the rate of return on firm’s
assets (ROA), the rates of return on firm’s equity (ROE), operating profit margin
and net income. The (ROA) measures the returns to all firm’s assets and is often
used as an overall index of profitability, and the higher the value, the more
profitable the firm, it is therefore an indicator of managerial efficiency as it shows
the firm’s management converted the institutions assets under its control into
earnings. The (ROE) measures the owner’s equity employed in the firms that
indicate how well the firm has used the resources owners.
Impact of Working Capital Management on Profitability of Quoted Cement Manufacturing
Companies in Nigeria
Sahel Analyst: ISSN 1117-4668 Page 88
Several studies were conducted on working capital management and profitability
of cement manufacturing companies both locally and internationally, such as
Paul and Agbo (2014), who utilised data from Nigerian cement industry to
analyse how cement manufacturing companies should finance and optimise their
working capital in more efficient ways by reducing the number of days
inventories are held, days accounts receivables are outstanding and cash
conversion cycle in order to enhance their profitability as well as create value for
their shareholders. Another study by Wangu and Kipkirui (2015) assesses the
effect of working capital management on profitability of cement manufacturing
companies in Kenya. The variables studied are inventory conversion period,
account receivables period and accounts payable period. Salami, Folajin and
Oriowo (2014) looks at working capital and the profitability of selected
manufacturing companies in Nigeria where inventory conversion period,
accounts collection period and cash conversion cycle were studied using a panel
data.
Similar studies were conducted outside Nigeria; whilst the ones conducted in
Nigeria are scanty and used a panel data and their studies were concentrated on
management of gross working capital but did not explain how the management
of net working capital might affect profitability. This study looks at the
contributions of accounts receivable period, inventory conversion period, cash
conversion cycle and in addition to previous studies is the accounts payment
period as a major source of free credit to the manufacturer which attracts no
interest and its impact on the profitability of cement manufacturing companies in
Nigeria. Therefore, this study looked at the impact of working capital
management on profitability of quoted cement manufacturing companies of
Nigeria.
Objectives of the Study
The main objective of the study is to examine the impact of working capital
management on the profitability of cement manufacturing companies quoted on
the Nigerian stock exchange. The specific objectives are to;
i. assess the impact of accounts collection period on profitability of cement
manufacturing companies quoted on the Nigerian stock exchange,
ii. examine the impact of inventory conversion period on profitability of cement
manufacturing companies quoted on the Nigerian stock exchange,
iii. assess the impact of accounts payment period on profitability of cement
manufacturing companies quoted on the Nigerian stock exchange and
iv. examine the impact of cash conversion cycle on profitability of cement
manufacturing companies quoted on Nigerian stock exchange.
Hypotheses of the Study
This study is guided by the following hypotheses;
Ho1: There is no significant impact of accounts collection period on the
profitability of quoted cement companies in Nigeria.
African Journal of Management (Vol.2, No.4, 2017), Business Admin. University of Maiduguri
Sahel Analyst: ISSN 1117- 4668 Page 89
Ho2: There is no significant impact of inventory conversion periods on the
profitability of quoted cement companies in Nigeria.
Ho3: There is no significant impact of accounts payment periods on the
profitability of quoted cement companies in Nigeria.
Ho4: There is no significant impact of cash conversion cycle on the profitability
of quoted cement companies in Nigeria.
Literature Review
The concept of working capital has been viewed by a number of researchers and
scholars. Paul and Agbo (2014) define working capital as managing relationships
between a firm’s short-term assets and liabilities to ensure that a firm is able to
continue its operations, and have sufficient cash flows to satisfy both maturing
short-term debts and upcoming operational expenses at minimal costs, and
consequently, increasing corporate profitability. Biradawa (2006) defines working
capital as firm’s investment in short term assets such as cash, marketable securities, accounts
receivable and inventories. Salami, Folajin and Oriowa (2014) view working capital
as the excess of current assets over current liabilities. Working capital
components such as stock, debtors, creditors and cash that are required for the
day to day production of goods to be sold by a company. These authors have a
similar view on working capital, where they suggest that the combination of
current assets and current liabilities in running the day to day business activities is
what encompasses working capital.
The working capital components work together in a cycle from the use of cash to
acquire raw materials to the sales of finished goods in order to receive cash.
According to Ramachandran and Janakiraman (2007), working capital is the flow
of ready funds necessary for the working of a concern. The above mentioned
authors are of the opinion that working capital comprises of short term funds
invested in current assets and current liabilities, the funds in current assets are
cash that are stocked in inventories and debtors while the current liabilities are
claims of outsiders such as accounts payables, bills payables, and overdrafts
among others. In addition to their opinions, the working capital components must
be combined with fixed assets in the production of goods and services to satisfy
their customers.
Working Capital Management
Padachi (2006) opines that the management of working capital management is
important to the financial health of businesses of all sizes. This is because, first,
the amounts invested in working capital are often high in proportion to the total
assets employed and so it is vital that these amounts are used efficiently, especially
in the manufacturing sector where too much working capital is needed for daily
activities as compared to fixed assets. Secondly, the management of working
capital directly affects the liquidity and the profitability of firms and
consequently their net worth. Rahaman and Nasr (2007) consider working
capital management as striking a balance between the two objectives of a firm,
that is, profitability and liquidity. They posited that firms must strive to maximise
Impact of Working Capital Management on Profitability of Quoted Cement Manufacturing
Companies in Nigeria
Sahel Analyst: ISSN 1117-4668 Page 90
profits and enhance shareholders wealth but at the same time not sacrifice their
liquidity which is necessary for smooth operations and most importantly,
corporate survival.
Accounts Collection Period
Biradawa (2006) defines account receivable as the credit sales which a firm
builds by its day to day business transactions. Trade credit happens when a firm
sells its products or services on credit and does not receive cash immediately. It
is an essential marketing tool, acting as a bridge for the movement of goods
through the production and distribution stage to customer. A firm grants trade
credit to protect it sales from the competitors and to attract the potential
customer to buy its product at favourable terms (Pandey, 2010). Similarly,
Rafuse (1996) views accounts receivable (AR) as customers who have not yet
made payment for goods or services which the firm has provided. These scholars
agreed unanimously that accounts receivable is when a customer is yet to repay
his obligations for the goods or services that were received.
Inventory Conversion Period
Biradawa (2006) views inventory management as stocks of raw materials,
work in progress, component parts, suppliers and finished goods. Inventories
are the products that a manufacturer has produced, which are available for sale.
Pandey (2005a) identifies the various forms in which inventories exist in a
manufacturing company which are the raw materials, work-in- progress and
finished goods. Stocks of raw materials and work-in-progress enhances
production, while stock of finished goods is needed for smooth marketing
operations (Hadley, 2006).In the context of inventory management, Pandey
(2005b) opines that a firm is faced with the problem of meeting two differing
needs, which are to maintain a large size of inventories of raw materials, work-
in-progress for smooth production and of finished goods for continuous sales
operations. Finally, is to maintain a minimum investment in inventories to
maximise profitability.
Accounts Payment Period
Accounts payable (AP) is viewed as the claims of outsiders whose invoices have
been processed, but have not been paid (Falope & Ajilore, 2009).
Organisations often regard the amount owing to creditors as a source of free
credit because it has no identifiable interest charges. It is in view of this that
accounts payable are always regarded as a major source of working capital
financing for firms (Pandey, 2005). Therefore, strong association between
company and its suppliers will strategically improve production lines and support
credit record for future growth. Accounts payment period include average
payment period (APP) and operating cycle (Pandey, 2010).
African Journal of Management (Vol.2, No.4, 2017), Business Admin. University of Maiduguri
Sahel Analyst: ISSN 1117- 4668 Page 91
Cash Conversion Cycle (CCC)
Elizalde (2003) views Cash conversion cycle as an important tool of analysis that
enable us to establish more easily why and how a business needs more cash to
operate and when and how it will be in a position to refund the negotiated
resources. Cash conversion cycle is considered as a comprehensive measure of
checking the efficiency of working capital management. A business can generate
losses during a number of different periods, but it cannot go on for an indefinite
period with poor cash conversion cycle Management (Dong & Su 2010).
Mathematically represented by the equation of cash conversion cycle is equal to
Inventory plus Accounts Receivables minus Accounts Payables (Dong & Su,
2010; Gill, Biger & Mathur, 2010; Gitman, 2009). Pandey (2010) argues that
depreciation and profit should be excluded in the computation of cash conversion
cycle since the firms concern is with cash flows associated with conversion at
cost, depreciation is a non-cash item and profits are not costs. A contrary view is
that the firm has to ultimately recover total costs and make profit; therefore, the
calculation of operating cycle should include depreciation, and even the profit
(Paul & Agbo, 2014).
Empirical Studies
Paul and Agbo (2014) examined the impact of working capital management
(Measured by; the number of Days Accounts Receivable are outstanding (DAR);
the number of Days Inventory Are Held (DINV); and the Cash Conversion Cycle
(CCC), on profitability (measured by Return on Assets-ROA) of Nigerian
Cement Industry for a period of eight (8) years (2002 to 2009). Data from a
sample of four (4) out of the five (5) cement companies quoted on the Nigerian
Stock Exchange (NSE) were analysed using descriptive statistics and multiple
regression analysis. The study found an insignificant negative relationship
between the profitability (measured by Returns on Assets ROA) of cement
companies quoted on the Nigerian Stock Market (NSE) and the Number of Days
Accounts Receivables is outstanding (DAR). The study also found a significant
negative relationship between the profitability of these cements companies and
the number of Days Inventory Are Held (DINV). The study finally revealed a
significant positive relationship between the profitability and the Cash
Conversion Cycle (CCC). The study concludes that, the profitability of cement
companies quoted on the NSE during the study period is influenced by number of
Days Inventories Are Held (DINV) and Cash Conversion Cycle (CCC). The
study therefore recommends that managers of these cement companies should
manage their working capital in more efficient ways by reducing the number of
days’ inventory are held to an optimal level in order to enhance their profitability
as well as create value for their shareholders. Managers of Nigerian cement
companies should also improve on their cash flows, through the reduction of their
cash conversion cycle.
Salami et al. (2014) investigated the relationship between working capital
management on organisational profitability in Nigeria with special reference to
manufacturing companies quoted in Nigerian Stock Exchange. The data used for
Impact of Working Capital Management on Profitability of Quoted Cement Manufacturing
Companies in Nigeria
Sahel Analyst: ISSN 1117-4668 Page 92
this study were derived from the audited financial statements of the firms listed
on the Nigerian Stock Exchange (NSE) between 2005 – 2013 which comprises of
twenty (20) manufacturing sectors was finally used as sample size. Panel data
methodology was adopted because it combined time series and cross sectional
data. The method of analysis is that of Pearson Correlation Moment Coefficient
and multiple regressions and the method of estimation is Ordinary Least Squares
(OLS). The result showed that working capital has negative and significant
relationship with the Return on Assets (ROA) and Return on Equity (ROE) at 5%
level. This implies that firms’ performance can be increased with short size of
Cash Conversion Cycle and the study recommended that cash conversion cycle
should be reduced and inventory should be turned out quickly.
Wangu and Kipkirui (2015) assessed the effect of working capital on profitability
of cement manufacturing companies in Kenya. The study used a sample of three
(3) cement manufacturing companies listed on the Nairobi Securities and
Exchange for the period of fifteen (15) years 2000 to 2014. The study used
secondary data from the cement manufacturing companies audited financial
statements. The data collected was analysed using the Karl Person Correlation
and the multiple linear regression. The study findings established that Inventory
Conversion Period (ICP) positively and significantly influences profitability
while Average Receivable Period (ARP) had a positive insignificant relationship
with profitability. The study findings also revealed that Average Payable Period
(APP) had a significant negative relationship between Leverage and Profitability
while liquidity and firm size had a positive insignificant relationship with
profitability. The study concludes that inventory days, receivables period,
liquidity, leverage and firm size positively influences profitability while payables
period negatively influences the profitability of cement manufacturing
companies.
Deloof (2003) investigated the relationship between working capital management
and corporate profitability for a balanced panel set of 1,009 Belgian firms over
the 1991–1996 periods. According to him, a longer Cash Conversion Cycle lead
to larger investment in working capital and longer Cash Conversion Cycle might
increase profitability because it leads to higher sales. However, corporate
profitability might also decrease with the Cash Conversion Cycle, if the costs of
higher investment in working capital rose faster than the benefits of holding
more inventories and/or granting more trade credit to customers. Number of
days’ accounts receivable, accounts payable and inventories were used as trade
credit policy and inventory policy while the CCC was used as a
comprehensive measure of working capital management. He found a significant
negative relation between gross operating income and the number of days’
accounts receivable, inventories and accounts payable by Belgian firms. He
emphasised that most firms had a large amount of cash invested in working
capital. It can therefore, be expected that the way working capital was managed,
had a significant impact on the profitability of firms. On the basis of these results
African Journal of Management (Vol.2, No.4, 2017), Business Admin. University of Maiduguri
Sahel Analyst: ISSN 1117- 4668 Page 93
he suggested that managers could create value for their shareholders by reducing
the number of days’ accounts receivable and inventories to a reasonable
minimum. The negative relation between accounts payable and profitability was
consistent with the view that less profitable firms wait longer to pay their bills.
Methodology
Population of the Study
The population of this study comprised six (6) cement manufacturing companies
quoted on the Nigerian stock exchange as at 31st December 2009. These are
Ashaka Cement Nigeria Plc, Dangote Cement Nigeria Plc, Cement Company of
Northern Nigeria Plc, Larfarge Cement Nigeria Plc (WAPCO), Niger Cement
Company (NCC) and Benue Cement.
Sample and Sampling Technique
Sample of the four (4) cement manufacturing companies quoted on the Nigerian
stock exchange. i.e. (Ashaka Cement Nigeria Plc, Dangote cement Nigeria Plc,
Cement Company of Northern Nigeria Plc, and Lafarge Cement Nigeria Plc
(WAPCO), were selected using purposive sampling, because they are the only
quoted cement manufacturing companies on the Nigerian stock exchange within
the period of investigation with up-to-date statements of account and the relative
ease of availability of data due to their years in operation, performance standing
and their dominance of the industry.
Source of Data
Secondary source of data was adopted from information that has already been
classified for use, because data were collected at a particular point in time. The
data for the study were sourced from the Nigerian Stock Exchange Fact Book and
annual reports and accounts of the respective companies as at 31th December
2009, the choice of the year 2009 to 2016 is simply the availability of data.
Method of Data Collection
The data were obtained through annual financial statements of the selected
cement manufacturing companies which are published on the Nigerian Stock
Exchange. Journals, paper presented at seminars and other relevant publications
of the organisations were used for this study from 2009 to 2016.
Method of Data Analysis
The statistical tool used for data analysis is Ordinary Least Squares Method
(OLS) which is one of the most popular and widely used methods for regression
analysis with the aid of econometric software called Statistical Package for Social
Science (SPSS). The reason for using cross sectional analysis is because data are
kept annually in Nigeria for all quoted firms and the choice of Ordinary Lease
Square (OLS) is because when used on cross sectional data, it tends to yield an
unbiased and consistent result. This is used to test the hypothesis of the study.
Impact of Working Capital Management on Profitability of Quoted Cement Manufacturing
Companies in Nigeria
Sahel Analyst: ISSN 1117-4668 Page 94
Model Specification
This research study is modelled on a multiple regression model as;
Model
Mathematically;
Multiple regression; BnXn + C
The regression model is expressed implicitly as;
Y= β + β1X1 + β 2X2+ β 3X3+ β 4X4+ е
Where
Y= profitability
e = error term
Bo= Constant term
Bx = Coefficient to be estimated
X1 = accounts collection period
X2= inventory conversion period
X3= accounts payment period
X4 = cash conversion cycle
b1-b4 = Regression Coefficient
Data Analysis, Findings and Discussion
This study was conducted to examine the impact of working capital management
on the profitability of quoted cement companies in Nigeria. The objectives were
analysed using inferential statistics (Multiple regression and simple linear
regression) with the aid of Statistical Package for Social Science (SPSS) to test
hypotheses H01 to H04. The results were presented in tables and discussed
according to the research hypotheses.
Table 1: t-test statistics on Research Parameters Parameters Estimate Standard Error T Statistic P-Value
Constant 4.6722667 4.3193667 1.0817 0.0000
Cash conversion cycle -3.8936366 1.9717167 -0.197475 0.0012
Creditors conversion period -3.2883966 1.9689767 -0.167011 0.0191
Debtors conversion period 3.3349666 1.966867 0.169563 0.0023
Inventory conversion period 3.355966 1.9631267 0.170947 0.0051
Dependent variable: Profitability
Independent variables: Accounts collection period, Accounts payment period, Cash
conversion cycle, Inventory conversion period.
R-squared = 45.5571 percent
R-squared (adjusted for d.f.) = 37.4915 percent
Standard Error of Est. = 6.8848167
Mean absolute error = 4.9621567
Durbin-Watson statistic = 0.820291 (P=0.0000)
Lag 1 residual autocorrelation = 0.588132
Table 1 shows the impact of accounts collection periods, inventory conversion
periods, accounts payment periods and cash conversion cycle on the profitability
of quoted cement companies in Nigeria. The result revealed a significant impact
of accounts collection periods, inventory conversion periods, accounts payment
periods and cash conversion cycle on the profitability of quoted cement
African Journal of Management (Vol.2, No.4, 2017), Business Admin. University of Maiduguri
Sahel Analyst: ISSN 1117- 4668 Page 95
companies in Nigeria. Since the p values (0.0012 0.0019, 0.0023, 0.0051) are less
than the alpha (0.05) value (p<α) the null hypotheses are rejected at 0.05 level of
significance. This means that there is a significant impact of accounts collection
periods, inventory conversion periods, and accounts payment periods and cash
conversion cycle on the profitability of quoted cement companies in Nigeria. The
table above also shows the results of fitting a multiple linear regression model to
describe the relationship between profitability and four independent variables.
The R-Squared statistic indicates that the model as fitted explains 37.4915% of
the variability in profitability. The equation of the fitted model is Profitability =
4.6722667-3.8936366 * accounts collection period + 3.3349666 * accounts
payment period -3.8936366 * cash conversion cycle 3.355966 * inventory
conversion period.
The standard error of the estimate shows the standard deviation of the residuals to
be 6.8848167. This value can be used to construct prediction limits for new
observations by selecting the option from the text menu. The mean absolute error
(MAE) of 4.9621567 is the average value of the residuals. The Durbin-Watson
(DW) statistic tests the residuals to determine if there is any significant
correlation based on the order in which they occur in your data file. Since the P-
value is less than 0.05, there is an indication of possible serial correlation at the
95.0% confidence level. In determining whether the model can be simplified,
notice that the highest P-value on the independent variables is 0.0191, belonging
to creditors conversion period. Since the P-value is less than 0.05, the term is
statistically significant at the 95.0% or higher confidence level. Consequently,
creditor’s conversion period should be removed from the model.
Discussion of Results
The study assessed the impact of working capital management on the profitability
of quoted cement companies in Nigeria. It was found that there is a significant
impact of working capital management on the profitability of quoted cement
manufacturing companies in Nigeria. Based on the data from the annual financial
statements of the four quoted cement manufacturing companies in Nigeria, the
results show that inventory conversion period, accounts collection period,
accounts payment period and cash conversion cycle have contributed
significantly to profitability.
Finding from hypothesis H1 (one) revealed that accounts collection period has a
significant impact on the profitability of quoted cement manufacturing companies
in Nigeria and a positive insignificant relationship between accounts collection
period and profitability. Aligning to this finding is a study by Wanguu and
Kipkirui (2015) that assesses the effect of working capital management on
profitability of cement manufacturing companies in Kenya for the period of 15
years (2000 to 2014), the study found a significant effect of account collection
period on profitability and insignificant relationship between account collection
period and profitability. Contrary to this finding is a study by Paul and Agbo
(2014) that examined the impact of working capital management on the
Impact of Working Capital Management on Profitability of Quoted Cement Manufacturing
Companies in Nigeria
Sahel Analyst: ISSN 1117-4668 Page 96
profitability of Nigerian cement industry for the period of eight (8) years (2002 to
2009), the study found a negative impact of accounts collection period on
profitability and a negative relationship between account collection period and
profitability?
Finding from hypothesis H2 (two) showed that inventory conversion period has
significant impact on the profitability of quoted cement manufacturing companies
in Nigeria and a significant relationship between inventory conversion period and
profitability. Conforming to this, Mobeen (2013 examined the impact of working
capital management on profitability of cement manufacturing sector in Pakistan
for the period of six (6) years (2003 to 2008). The study revealed a significant
impact of inventory conversion period on profitability and a significant
relationship between inventory conversion period and profitability. Again,
Wangu and Kipkirui (2015) found out a significant impact of inventory
conversion period on profitability and a significant relationship between
inventory conversion period and profitability. Paul and Agbo (2014) disagreed
with this finding though having a significant impact of inventory conversion
period on profitability but an insignificant relationship between inventory
conversion period and profitability.
The third finding from Hypothesis H3 (three) indicates that there is a significant
impact of accounts payment period on profitability and a significant positive
relationship between accounts payment period and profitability of quoted cement
manufacturing companies in Nigeria. Wangu and Kipkirui (2015) disagreed with
this finding whereas, there is a negative impact of account payment period on the
profitability and a negative relationship between accounts payment period and
profitability of quoted Nigerian manufacturing firms for the period of (2000 to
2011) using descriptive statistics and multiple regression analysis.
Finding from hypothesis H4 (four) showed a significant impact of cash
conversion cycle on profitability and a positive relationship between cash
conversion cycle and profitability of quoted cement manufacturing companies in
Nigeria for the period of eight (8) years (2009 to 2016). Aligning with this
finding, Sen and Oruc (2009) assessed the relationship between level of working
capital management and efficiency level, evidence from the top five beer brewery
firms in the world using descriptive statistics (mean) and inferential statistics
(multiple regression). The study showed a significant effect of cash conversion
cycle on profitability and though no relationship was measured and analysed.
Duru (2014) also showed a significant impact of cash conversion cycle on
profitability and a non-significant relationship with the industries profitability. In
line with this finding, Paul and Agbo (2014) found a significant impact of cash
conversion cycle on profitability and a positive relationship between cash
conversion cycle and profitability of Nigerian cement industry.
African Journal of Management (Vol.2, No.4, 2017), Business Admin. University of Maiduguri
Sahel Analyst: ISSN 1117- 4668 Page 97
Conclusion
From the study findings, it was concluded that there is a significant impact of
working capital management on the profitability of quoted cement manufacturing
companies in Nigeria; There is a significant impact of accounts collection
periods, inventory conversion periods, accounts payment periods and cash
conversion cycle on the profitability of quoted cement companies in Nigeria this
was tested among the variables using multiple regression analysis. There is a
significant impact of accounts collection period on the profitability of quoted
cement companies in Nigeria. There is a significant impact of inventory
conversion periods on the profitability of quoted cement companies in Nigeria.
There is a significant impact of accounts payment periods on the profitability of
quoted cement companies in Nigeria. There was a significant impact of cash
conversion cycle on the profitability of quoted cement companies in Nigeria..
Recommendations
Based on the study findings the following recommendations were made;
i. The financial managers of cement manufacturing companies in Nigeria should
manage their inventories in a more efficient and effective way by reducing the
number of days inventory are held to a minimal level so as to prevent funds
being stocked.
ii. Managers of Nigerian cement manufacturing companies should reinvest their
excess accounts receivables in marketable securities to avoid funds being kept
idle. This will generate more interest to improve profitability.
iii. Since it takes a longer period to pay creditors, financial managers of cement
manufacturing companies in Nigeria should avoid borrowing from other
sources that will attract interest. Instead, they should utilise the accounts
payable as a source of free credit.
iv. In order to maximise shareholders wealth, financial manager of Nigerian
cement manufacturing companies should improve their cash flow by reducing
cash conversion cycle to an optimal level.
References
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International Journal of Business and Social Science Vol. 3 No. 10, pp 311-
316.
Adeola Odeku, (2011). Nigerian Cement Industry. PanAfrican Capital Research.
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Afza, T. & Nazir, M. (2009). Impact of aggressive working capital
Management Policy on firm’s profitability. The IUP Journal of Applied
Finance, 15 (8), 20-30.
Impact of Working Capital Management on Profitability of Quoted Cement Manufacturing
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