Tertiary sector – The part of the economy that provides services rather than goods (e.g., retail, transportation, entertainment).
Quaternary sector – Industries focused on information processing, finance, administration, insurance, and legal services.
Quinary sector – High-level decision-making and knowledge-based activities, such as scientific research and corporate executives.
Service economy – An economy focused more on providing services (education, healthcare, finance) rather than manufacturing goods.
Deindustrialization – The decline of manufacturing industries in a region, often due to outsourcing or automation.
Rust Belt – A region in the northeastern and midwestern United States that suffered economic decline due to factory closures.
Sun Belt – A region in the southern United States (e.g., Texas, Florida, Arizona) that has experienced economic growth in service industries.
Multinational corporations (MNCs) – Large companies that operate in multiple countries (e.g., Walmart, Apple, McDonald's).
Outsourcing – The practice of moving jobs to other countries where labor is cheaper.
Postindustrial economy – An economy that has moved beyond industrial manufacturing and focuses on services and technology.
Agglomeration – When businesses in the same industry cluster together for mutual benefit (e.g., Silicon Valley for tech companies).
High-technology corridor – A region designated for technology-based businesses, often with government incentives (e.g., Silicon Valley).
Technopole – A hub of high-tech businesses and research institutions, such as the Route 128 Corridor near Boston.
Back-office functions – Business operations like customer service and data processing that do not require a physical presence in major cities and are often outsourced.
Infrastructure – The basic physical systems of a country, including transportation, telecommunications, and utilities.
Tourism industry – The business sector focused on travel, accommodations, and entertainment for visitors.
Economic spillover – When economic activity in one sector or area benefits others (e.g., tourists boosting local restaurants and hotels).
Vulnerability in a service economy – The risk that service jobs can disappear due to automation, outsourcing, or economic downturns.
Rostow’s Modernization Model – A five-stage model that suggests all countries move through the same path of development from agriculture to industrialization to a service economy.
Wallerstein’s World-Systems Theory – A theory that divides the world into core, semi-periphery, and periphery countries based on economic power and dependency.
Core countries – Wealthy nations with strong economies and advanced technology (e.g., U.S., Germany, Japan).
Periphery countries – Less-developed nations that provide raw materials and labor to core countries (e.g., Chad, Bangladesh).
Semi-periphery countries – Nations that have both industrial power and economic dependence (e.g., China, Brazil, Mexico).
Dependency Theory – The idea that poorer countries remain underdeveloped because they are economically controlled by wealthier countries.
Gross National Income (GNI) – The total value of goods and services produced by a country's residents, including income from foreign investments.
Gross Domestic Product (GDP) – The total value of goods and services produced within a country’s borders in a given year.
Per capita GNI – A country’s GNI divided by its population, used to compare economic well-being across nations.
Human Development Index (HDI) – A measure of a country's development based on education, life expectancy, and income.
Informal economy – Economic activities that are not regulated by the government, such as street vending or unregistered labor.
Dollarization – When a country adopts the U.S. dollar as its official currency instead of having its own national currency.
Foreign debt crisis – When a country borrows more money than it can repay, leading to economic instability.
Political instability – Government corruption, war, or weak leadership that slows economic development.
Brain drain – The migration of highly educated or skilled workers from poorer countries to wealthier ones.
Infrastructure gap – A lack of essential physical structures (roads, electricity, internet) needed for economic growth.
Digital divide – The gap between regions with access to modern technology and those without.