🇺🇸 Great Depression in the United States (1929–1939)
Demand Shock · Expert Difficulty · United States
Historical Context — The Great Depression (1929–1939)
The American Great Depression began after the Wall Street Crash of 1929, when stock prices collapsed following years of speculation during the "Roaring Twenties." Americans had bought stocks using borrowed money, banks operated with weak regulation, and industrial overproduction had become a problem. When confidence collapsed, investors sold stocks rapidly, banks failed, businesses cut production, and unemployment surged. The crisis became the worst economic downturn in American history, fundamentally changing the role of government in the economy.
Before the Crash (1920s — "Roaring Twenties")
- GDP Strong growth — industrial expansion and consumer boom
- UNEMP ~3% — near full employment
- STOCKS Rapid speculation — buying on margin widespread
- BANKS Weakly regulated — excessive lending
After the Crash (1930–1933 — Trough)
- GDP −30% — catastrophic contraction in output
- UNEMP ~25% — one in four workers unemployed
- PRICES −25% deflation — debt burdens increased in real terms
- BANKS 4,000+ failures — savings wiped out, credit frozen
Key Macroeconomic Indicators
Click any indicator card to see context
US GDP Index (1929 = 100)
1929 – 1939
Macro Indicators 1929–1939
Unemployment & Inflation (%)
Economic Mechanism — What Caused the Collapse?
Stock Market Crash
Wealth disappeared overnight. Consumer confidence collapsed as millions lost savings in the crash. Buying on margin amplified losses.
Bank Failures & Credit Freeze
Banks stopped lending. Panic-driven bank runs caused thousands of banks to collapse. People withdrew savings, destroying the credit system.
Demand Collapse
Consumption ↓ → Investment ↓ → Production ↓. Businesses laid off workers, causing even lower spending — a self-reinforcing downward spiral.
Deflation Trap
Falling prices increased real debt burdens. Consumers delayed spending expecting lower prices later, deepening the demand collapse.
Gold Standard Constraints
The Federal Reserve had limited flexibility. Monetary policy remained too tight during the early years, preventing recovery.
Smoot–Hawley Tariffs
The 1930 tariff act triggered global retaliation. International trade collapsed by two-thirds, eliminating export demand.
Key Events Timeline
"Black Thursday" — stock market panic begins on Wall Street
"Black Tuesday" — the worst single-day stock market crash in US history
Thousands of US banks fail — millions lose savings with no deposit insurance
Smoot–Hawley Tariff Act signed — global trade collapses as countries retaliate
Unemployment reaches ~25% — Hoover Bonus Army marchers dispersed in Washington
FDR inaugurated — declares bank holiday and begins the New Deal
New Deal programs expand — WPA, CCC, Social Security Act passed
Recovery strengthens gradually — WWII spending eventually ends the Depression
Policy Responses
Early Response — President Hoover (1929–1933)
Herbert Hoover initially believed the economy would recover naturally. Policies were limited — some public works spending but no direct intervention. Many economists later argued this response was too weak and too slow.
- Limited public works spending
- No direct relief to unemployed
- Smoot–Hawley Tariff worsened trade
New Deal — President Roosevelt (1933–1939)
FDR introduced sweeping reforms: public jobs programs, banking reforms, financial regulation, and the Social Security system. The New Deal changed the role of government in the economy permanently.
- Civilian Conservation Corps (CCC)
- Works Progress Administration (WPA)
- Banking reforms & FDIC deposit insurance
- Social Security Act (1935)
- Moved away from strict gold standard