wunder beta📘 What caused the Great Depression?
Stand in the crowd outside the New York Stock Exchange on 24 October 1929. The crash you are watching did not begin the Great Depression, and by itself it cannot explain the decade that followed.
What you’ll learn
- A boom with weak foundationsDistinguish the Depression's pre-1929 vulnerabilities from its immediate triggers, and explain why the crash alone is insufficient.Uneven prosperity, farm debt, fragile local banks, dependence on durable-goods spending, and tighter credit left the economy exposed before the famous crash.
- The crash becomes a spending collapseTrace how lost wealth, uncertainty, falling durable-goods purchases, layoffs and debt-deflation reinforced the initial contraction.The crash mattered by changing spending and expectations; falling income and prices then turned caution into a self-reinforcing demand and debt crisis.
- Banks turn recession into depressionExplain how uninsured deposits, bank runs, credit destruction, lost lending relationships and Federal Reserve inaction deepened the downturn.Banking panics shrank deposits and loans, destroyed borrower knowledge, and fed deflation while the Federal Reserve failed to replace the collapsing money supply.
- Gold, trade, and the long trapEvaluate the gold standard, protectionism, international transmission, unequal hardship and recovery evidence without reducing the Depression to one cause.Gold constrained monetary rescue, protectionism damaged trade, and interacting mechanisms spread the crisis; the pattern of recovery helps historians test their importance.
Questions this course answers
Why is the October 1929 stock crash not a complete explanation for the Great Depression?
Production had already turned down in August 1929. The crash damaged wealth, confidence and durable-goods spending, but banking panics, credit collapse, deflation and policy constraints explain most of the Depression's extraordinary depth.
What made American farms and country banks a weak point before 1929?
The Library of Congress records that one in four farms was sold to meet financial obligations between 1920 and 1932, and the FDIC counts hundreds of bank suspensions in every year of the decade, concentrated in farm regions.
How could the crash cut spending among people who owned no shares at all?
Christina Romer found spending on consumer durables and semidurables fell immediately after the crash. A worker fearing unemployment could keep the old car; a dealer expecting fewer buyers trimmed orders.
How could falling prices make the Depression worse for a farmer with a fixed dollar debt?
Deflation cut the prices and incomes debtors received while the nominal sum they owed stayed fixed, so the real burden of repayment rose.
Why could a bank run harm a business that never withdrew a deposit?
Runs damaged the payment and credit channels of a whole community. Bernanke added that a failed bank took its knowledge of local credit risks with it, raising the cost of matching sound projects to money.
What does Federal Reserve History call the central bank's most serious sin of omission?
From the fall of 1930 through the winter of 1933 the money supply fell by nearly 30 percent, pulling average prices down by an equivalent amount. Many officials misread low nominal rates as easy money, missing that deflation made real borrowing costs high.
Grounded in trusted sources
- Federal Reserve History, 'The Great Depression': https://www.federalreservehistory.org/essays/great-depression
- Federal Reserve History, 'Stock Market Crash of 1929': https://www.federalreservehistory.org/essays/stock-market-crash-of-1929
- Federal Reserve History, 'Banking Panics of 1930-31': https://www.federalreservehistory.org/essays/banking-panics-1930-31
- Federal Reserve History, 'Banking Panics of 1931-33': https://www.federalreservehistory.org/essays/banking-panics-1931-33
- Christina D. Romer, 'The Great Crash and the Onset of the Great Depression', NBER Working Paper 2639: https://www.nber.org/papers/w2639
- Ben S. Bernanke, 'Non-Monetary Effects of the Financial Crisis in the Propagation of the Great Depression', NBER Working Paper 1054: https://www.nber.org/papers/w1054
- Barry Eichengreen, 'Golden Fetters: The Gold Standard and the Great Depression, 1919-1939', NBER: https://www.nber.org/books-and-chapters/golden-fetters-gold-standard-and-great-depression-1919-1939
- U.S. Department of State, Office of the Historian, 'Protectionism in the Interwar Period': https://history.state.gov/milestones/1921-1936/protectionism
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