Economic sectors, theories of development, and the global economy

Economies are often divided into sectors: the primary sector extracts resources through farming, fishing, forestry, and mining; the secondary sector manufactures goods; the tertiary sector provides services; and some geographers add a quaternary sector of information and research. As countries develop, jobs usually shift from the primary sector toward services. Geographers use several theories to explain why development is so uneven. W. W. Rostow's stages of growth (1960) described countries moving from a traditional society through a "takeoff" into mass consumption, but critics note it assumes every country will follow the path of Western Europe and the United States. Immanuel Wallerstein's world-systems theory divides the world into a wealthy core, a semi-periphery, and a periphery, arguing that wealth tends to flow toward the core, and dependency theory argues that many former colonies were kept in the role of exporting cheap raw materials. In today's global economy, multinational corporations spread production across countries, outsourcing contracts work to outside companies and offshoring moves work to lower-cost places, often abroad, special economic zones and free trade agreements attract investment, and older industrial regions in core countries have lost manufacturing jobs. These changes bring growth and new jobs to some places and disruption to others.

This explanation is AI-generated and can occasionally be wrong. 🚩 Report