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AP Human Geography. Central Place Theory. Central Place Theory. Based on the work of Walter Christaller, a German geographer In 1933, Christaller wrote his doctoral dissertation in geography entitled, The Central Places of Southern Germany. In it, he proposed CPT. - PowerPoint PPT Presentation
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AP Human Geography
Central Place Theory
Central Place Theory
Based on the work of Walter Christaller, a German geographer
In 1933, Christaller wrote his doctoral dissertation in geography entitled, The Central Places of Southern Germany.
In it, he proposed CPT
Central Place Theory: Some Basic ideas
Central places are nodes for the distribution of economic goods and services to surrounding nonurban populations
Central places compete against each other; this competition creates the regular pattern of settlements
Each settlement has a market area, the region from which customers are drawn.
Hexagons rather than circles are used to indicate market areas.
Central Place Theory Cont’d
Smaller settlements occur more frequently and are closer together, while larger settlements occur less frequently and are farther apart.
Small settlements provide goods and services that have small thresholds and ranges; large settlements provide goods and services that have large thresholds & ranges.
The good or service provided in a central place has an order (high or low) based on how specialized it is.
Market Area
The area surrounding a service from which customers are attracted is the market area or hinterland.
It is a good example of a nodal or functional region- a region with a core, where the characteristic is most intense.
Size of Market Area
Range- the maximum distance people are willing to drive to use a service
Threshold- the minimum number of people needed to support the service (customer base)
Assumptions
No topographic barriers No difference in soil fertility Population & purchasing power evenly
distributed People with similar lifestyles and incomes Uniform transportation network Purchase of goods & services at the
nearest center
What are the advantages of central place theory?
Does a reasonably good job of describing the spatial pattern of urbanization. No economic theory explains why there is a hierarchy of urban centers.
Provides a description of the relationship between a central place-higher order place and its tributary areas-lower order places.
Does a good job of describing the location of trade and service activity.
The Real World
Physical barriers, resource distributions, etc. create modifications of the spatial pattern.
Some areas tend to confirm the model Christaller stimulated urban and economic
geography in general and location theory in particular.
Conclusions
Christaller’s conclusions:
1. Towns of the same size are evenly spaced because they are in the center of liked-sized market areas. Larger towns will be farther apart than smaller towns b/cause their market areas are larger.
2. Distribution of cities, towns, & villages in a region is related to trade areas, pop. size, and distance
Rank Size Rule
Holds that in a model urban hierarchy, the pop of a city or town will be inversely proportional to its rank in the hierarchy
For example, if the largest city has 12 million people, the 2nd largest = 6 million (1/2); 3rd largest = 4 million (1/3);
Rank size rule does not apply to all countries, esp. countries w/one dominant city, e.g., France, England, Japan, Mexico, etc.
Primate City Rule According to primate city rule, the largest
settlement has more than twice as many people as the second-ranking settlement.
Examples: Paris, France; London, United Kingdom; Mexico City, Mexico, etc.
Pros-lg. market for goods/services/information, compete on a global scale & attract foreign investment, lg. threshold=better services, transportation
Cons-unequal distribution of investments, wealth, transportation & resources; brain drain, slums, environmental impact
Where are Business Services Distributed?
Cluster in urban settlements Global or world cities have lg. #s of business services for
many reasons: Headquarters of lg. corporations are clustered in global
cities Lawyers, accountants, & other professionals cluster there
to provide advice to major corporations & financial institutions
Advertising agencies, marketing firms, etc. concerned w/ style & fashion locate in global cities to help corporations anticipate changes in taste & shape those changes
Where are Business Services Distributed? Global cities are centers for finance & attract major
banks, insurance co., etc. Global cities are divided up into 3 levels:
Alpha, beta, gamma Ex. alpha++ city= NYC and London
alpha+ city= Chicago, Tokyo, Hong Kong
Where are Business Services Distributed? Combination of economic, political, cultural, & infrastructure
factors are used to identify global cities
Economic factors: # of headquarters for multinational co., financial institutions, & law firms
Political factors: hosting headquarters for international org. & capitals of countries that play lead role in international events
Cultural factors: cultural institutions, media outlets, sports facilities, educational institutions
Infrastructural factors: major international airports, health care facilities, & advanced communication systems
Where are Business Services Distributed? New forms of transportation & communication were expected to
reduce the need for clustering of services in lg. cities: Telegraph & telephone in 19th century and the computer in
the 20th century RR in 19th century & motor vehicle and airplane in 20th
century These new technologies have reinforced rather than
diminish the primacy of global cities Characteristics of global cities: tend to have busy harbors &
airports and lie at the junction of RR and highway networks
Consumer & Public Services in Global Cities
Retail services w/ extensive market areas
Lg. # of wealthy ppl, so luxury & highly specialized products are especially likely to be sold there
Offer more plays, concerts, operas, night clubs, restaurants, bars, professional sporting events, libraries, museums, etc.
Leisure activities cluster in global cities b/c they require lg. thresholds and lg. ranges, & need for wealthy patrons
Most are national capitals w/ gov’t and related services Ex. NYC is not but houses United Nations headquarters;
Brussels, Belgium center for European Union activities
Business Services in Developing Countries Developing countries usually specialize in 2 distinctive types of
business services: offshore financial services & back-office functions These services are located here for reasons such as
supportive laws, weak regulations, & low wage workers Sm. Countries (islands/microstates) offer offshore financial
services. Off shore centers provide 2 important functions:
Taxes: taxes on income, profits, & capital gains are typically low or non-existent
Companies incorporated in an offshore center also have tax-free status, regardless of the nationality of owner
Companies are able to conceal their assets & countries lose out on millions/billions of tax revenue
Privacy: bank secrecy laws can help individuals & businesses evade disclosure in their home countries Creditors cannot reach such assets in bankruptcy hearing Short statues of limitation protect offshore accounts from
long-term investigations
The International Monetary Fund, UN, & Tax Justice Institute identify the following places as offshore financial services centers: Dependencies of the UK: Anguilla, Cayman Islands,
Montserrat, British Virgin Islands, Gibraltar off Spain Dependencies of other countries: Cook Island controlled by
New Zealand, Aruba & Curacao controlled by the Netherlands, Hong Kong & Macau by China
Independent countries: Barbados, Grenada, Turks & Caicos, Samoa, Mauritius, Seychelles , Ireland, Liechtenstein, Costa Rica, Lebanon, United Arab Emirates, etc.
Cayman Islands
Several hundred banks w/ assets of more than $1 trillion are legally based there
Most banks have only a handful of ppl, if any, working in the Caymans
Crime to discuss confidential business learned on the job in public
Offshore assets are not covered by lawsuits originating in the U.S., so additional lawsuits would have to be made & privacy laws can shield individual/corporation from undesired disclosures
Back Office Functions (business process outsourcing or BPO) Includes insurance claims processing, payroll management,
transcription work, & other clerical activities
Also as centers for responding to billing inquiries related to credit cards, shipments, claims, technical support for things like installation, operation, & repairs
High rent prices in downtown global cities has induced business services to move routine work to places in suburbs or nearby sm. Towns
Selected developing countries have attracted back offices for 2 main reasons: Low wages and ability to speak English
Economic Base of Settlements: Settlement’s distinctive economic structure derives from its
basic industries (export primarily to consumers outside settlement)
Nonbasic industries: enterprises whose customers live in the same community, essentially, consumer services
Community’s unique collection of basic industries defines its economic base
Exportation of basic industries brings $ to local economy, thus stimulating more nonbasic consumer services for the area
New basic industries attract new workers to the settlement The settlement then attracts additional consumer services to
meet the needs of the new workers New basic industries stimulates new nonbasic industries but not
visa-versa
Economic Base of Settlements: Basic industries can be computed by the % of the community’s
workers employed in different types of businesses % of workers employed in a particular industry in a settlement is
then compared to the % of all workers in the country employed in that industry
If % is much higher then it is a basic economic activity for that settlement
Settlements can be classified by their basic activity such as: manufactured goods (steel, cars) located btw. Northern Ohio
& SE Wisconsin and Great Lakes nondurable manufactured goods (textiles, apparel, food,
chemicals, paper) in SE, especially the Carolinas
Economic Base of Settlements: Other examples
computer and data processing in Boston and San Jose High-tech industries support services: Austin, Orlando, Raleigh-
Durham Military activity support services: Albuquerque, Colorado Springs,
Knoxville, Norfolk Management-consulting: Washington D.C. Entertainment/Recreation: Atlantic City, Las Vegas, Reno Medical: Rochester, Minnesota Public Services: state capitals like Sacramento and Tallahassee,
Arlington for military bases
North and Eastern states have expanded their business services more rapidly
ex. Cleveland & Pittsburgh once relied on steel production but now rely on health services such as hospitals, medical high-technology
Distribution of Talent
Some cities have higher % of talented individuals than others Ex. Raleigh-Durham, Washington D.C.,
Austin, Colorado Springs, Boston, San Francisco, Seattle
Enticement of cultural rather than economic reasons bring talent to these cities
Services in rural settlements:
Rural settlements are either clustered or dispersed Clustered rural settlement includes homes, barns,
tool sheds, & other farm equipment plus consumer services (religious structures, schools, shops)
Usually has a commons areas Villages or hamlets are clustered rural settlements Brings about a sense of community
Ex. New England colonists & their focus around the Church
Services in rural settlements:
Dispersed rural settlements: More individual areas w/ lg. chunks of land Typical of Middle Atlantic colonies settled by
groups like the Germans, Dutch, Irish, Swedish, etc.
Dominates the American Midwest where land was plentiful & cheap
Enclosure movement in England is a good ex. of dispersed rural settlements