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This Module outlines the five primary sectors of an economy, ranging from the extraction of raw materials to high-level intellectual and managerial services. It describes how the distribution of these sectors defines a country’s level of development, categorized through the core-periphery model into core, semi-periphery, and periphery regions. The material also examines the location of manufacturing, identifying key influences such as energy costs, labor availability, and proximity to materials and markets. Furthermore, it highlights the impact of transportation innovations, such as containerization and cargo jets, on global trade efficiency. To explain industrial placement, the text introduces Alfred Weber's least-cost theory, which suggests that factories are positioned to minimize the weight and distance of transport. Ultimately, these sources provide a framework for understanding why economic activities vary geographically and how global industrial patterns evolve.
Module Guiding Questions
How do the five economic sectors differ in their activities?
What factors determine where a company decides to build factories?
Explain the core-periphery model and how it shapes global development.
Module Key Terms
Base Industry
An industry of disproportionate economic importance on whose existence other industries and employment sectors depend.
Break-of-bulk point
A location where cargo is transferred from one mode of transportation to another, such as from a ship to a railroad car.
Containerization
A system of intermodal freight transport using standardized, stackable metal boxes to accelerate global delivery.
Core Area
In a regional context, the location of manufacturing industry; in a global context, states with a high proportion of secondary and tertiary workforces.
Economic Sectors
Groupings of industries based on what is produced and the activities of the workforce.
Extractive Industries
Another name for the primary sector, referring to industries that remove natural resources from the environment.
Least-cost Theory
Alfred Weber’s theory that transportation cost is the key factor in manufacturing location, based on the variables of distance and weight.
Peripheral Area
Regions that serve as sources of natural resources and are disproportionately engaged in the primary sector.
Primary Sector
Industries that extract natural resources from the environment, such as mining, farming, and fishing.
Quaternary Sector
The portion of the economy dedicated to intellectual and informational services, including scientific research and development.
Quinary Sector
The sector involving the highest-level management decisions in business, government, education, and science.
Secondary Sector
Industries that process raw materials extracted by the primary sector and transform them into finished, usable forms.
Semi-periphery
An intermediary category of nation-states or regions whose economies have elements of both the core and the periphery.
Tertiary Sector
Industries dedicated to providing services to businesses and consumers, including transportation and retail.
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