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Great Depression Summary

Jun 12, 2025

Overview

This lecture summarizes the causes, effects, and lessons of the Great Depression, emphasizing the significance of history in understanding financial crises.

The Roaring Twenties: Setting the Stage

  • Post-World War I America entered a period of economic prosperity known as the Roaring Twenties.
  • Economic growth was fueled by returning soldiers, delayed projects, and more women in the workforce.
  • Consumer goods like vacuum cleaners, electric washing machines, and automobiles became widespread.
  • Banks gave out easy loans, enabling more people to buy products and invest.

Stock Market Boom and Speculation

  • Stock market investing became extremely popular among all social classes in the 1920s.
  • Many individuals took out loans to buy stocks, increasing financial risk.
  • Banks also invested heavily in the stock market, often using customer deposits.
  • Stock prices rose rapidly, outpacing company production and actual economic growth.

Warning Signs and the Market Crash

  • By late 1920s, production and wages slowed while interest rates increased, but investors largely ignored economic issues.
  • Investor uncertainty grew, leading to panic selling on October 24, 1929 (“Black Thursday”).
  • Black Tuesday followed, with the market losing $40 million and many stocks becoming worthless.
  • The Dow Jones lost 90% of its value over three years, and widespread losses devastated personal savings and banks.

Consequences of the Great Depression

  • Banks failed, with depositors losing most of their savings.
  • Unemployment peaked at 24.9%, and poverty, soup kitchens, and homelessness became widespread.
  • The financial crisis affected people globally, not just investors and banks.

Long-term Impact and Lessons Learned

  • The Great Depression contributed to political changes worldwide, including the rise of Nazi Germany.
  • U.S. government responded by creating the FDIC and SEC to protect bank deposits and regulate markets.
  • The crisis demonstrated the dangers of speculation, excessive debt, and unregulated financial markets.

Key Terms & Definitions

  • Speculation — Risky investment in stocks or assets in hopes of quick profits.
  • Black Thursday / Black Tuesday — Key dates in October 1929 when mass panic selling triggered the stock market crash.
  • Dow Jones — A stock market index representing major U.S. companies, used as an economic indicator.
  • Great Depression — The most severe global economic downturn of the 20th century, lasting through the 1930s.
  • FDIC — Federal Deposit Insurance Corporation, protects bank deposits.
  • SEC — Securities and Exchange Commission, regulates stock markets.

Action Items / Next Steps

  • Review the causes and consequences of the Great Depression for upcoming assessments.
  • Read about the formation and purposes of FDIC and SEC in assigned textbook sections.