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AP U.S. History · Unit 9: Period 9 · 1980–Present

9.3 A Changing Economy

Rise of the Information/Tech Economy

Beginning in the 1980s, the U.S. shifted from a manufacturing-based economy toward a service and technology-based economy. Personal computers, the internet, and telecommunications transformed business, education, and daily life. Companies like Microsoft and Apple symbolized this shift. This globalization and technological change reshaped the workforce, favoring skilled, educated workers while displacing many industrial laborers.

Deindustrialization and Its Effects

Traditional manufacturing declined as factories closed or moved overseas, creating a 'Rust Belt' across the Midwest and Northeast. Job losses in steel, auto, and textile industries hurt unionized blue-collar workers, increasing income inequality. Meanwhile, new jobs concentrated in the Sun Belt and in service/tech sectors, contributing to demographic and economic shifts within the country.

Free Trade and Globalization

Policies like NAFTA (1994) reduced trade barriers between the U.S., Canada, and Mexico, expanding globalization. Supporters argued free trade boosted growth and consumer choice; critics blamed it for job losses and wage stagnation. Immigration, especially from Latin America and Asia, also increased, fueled partly by economic opportunities and labor demand in the new economy.

Key terms

Deindustrialization
The decline of manufacturing industries, especially in the Midwest/Northeast, leading to factory closures and job losses.
Rust Belt
Region of the Midwest and Northeast that suffered economic decline due to deindustrialization.
Sun Belt
Southern and southwestern U.S. region that saw economic and population growth due to new tech and service industries.
NAFTA (1994)
Trade agreement between the U.S., Canada, and Mexico that reduced tariffs and promoted free trade.
Information/Tech Economy
Economic shift toward computers, telecommunications, and services, replacing traditional manufacturing as the main driver of growth.

Try an AP-style question

Deindustrialization in the late 20th century caused…

  1. fewer service jobs
  2. rising union membership
  3. factory growth in the Northeast
  4. job losses in the Rust Belt
Show the answer

D. Offshoring.

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