What Caused the Great Depression and Its Spread?

TL;DR

The Great Depression became catastrophic when a leveraged stock-market crash reduced wealth, weakened consumption, and triggered widespread bank failures that spread distress throughout the real economy. Unemployment reached 25%, industrial production fell by half, and 10,000 banks collapsed, prompting federal programs including Social Security, unemployment insurance, a federal minimum wage, and housing subsidies.

Transcript

Hi, I'm Chris Clark. I'm an economics professor at Washington State University and I'm here to answer your questions from the internet. This is Great Depression Support. This Caterpillar 330 asks, "Was the Great Depression really as bad as it's commonly portrayed to be?" Yes, it was awful. The unemployment rate is 25%. In the Great Recession of 200... Read More

Key Insights

• The Great Depression was the worst economic decline in United States history between 1929 and 1933, with unemployment reaching 25% and industrial production falling by half. Its scale far exceeded the Great Recession of 2009, when unemployment peaked at 10%.
• Leveraged stock purchases magnified both gains and losses during the late 1920s speculative boom. Investors borrowed heavily, sometimes using an initial $100 investment to control $1,000 in stock, so falling prices caused lenders to call loans and generated a cascading crash.
• The stock-market crash spread into the real economy through declining wealth, reduced consumption, falling business sales, layoffs, and bank failures. Although only 1% to 2% of Americans owned stock, the banking collapse transformed a concentrated financial shock into widespread economic suffering.
• The fractured United States banking system made institutions particularly vulnerable to regional shocks and depositor runs. Approximately 10,000 banks collapsed across the crisis years, while Canada had only 10 banks serving the entire country and did not experience comparable runs.
• Federal welfare systems emerged in response to the Depression's widespread suffering. Measures created during the 1930s included Social Security, unemployment insurance, a federal minimum wage, and housing subsidies, all intended to address hunger, unemployment, and economic insecurity.
• The Smoot-Hawley Act raised American tariffs but had only a modest domestic effect because international trade represented a relatively small part of the large United States economy. Its broader consequence was retaliation abroad, with tariffs rising and global trade shrinking through 1932 and 1933.
• The Dust Bowl resulted from prolonged drought combined with the removal of deeply rooted native prairie grasses. Mechanized farming plowed millions of acres, leaving exposed dirt that powerful winds carried across the country when drought prevented wheat and other vegetation from growing.
• The Great Depression is not closely matched by the economic conditions discussed for 2022 and 2023. Home and car ownership rates were much higher, assistance such as food stamps existed, and the Federal Reserve's response during the 2008 financial crisis helped preserve the financial system.

Questions & Answers

Q: How severe was the Great Depression in the United States?

The Great Depression was an exceptionally severe collapse. Unemployment reached 25% by 1932, meaning one out of every four people seeking work could not find it, and industrial production fell by half. People went hungry, unemployed men advertised themselves for work in the streets, and relief organizations operated soup kitchens. The crisis also contributed to the creation of major federal welfare programs.

Q: What caused the Great Depression between 1929 and 1933?

The crisis developed from a speculative boom, heavy borrowing, an ordinary recession, falling stock prices, declining consumption, and bank failures. Investors bought stocks with large loans, making the financial system highly sensitive to price declines. After economic activity slowed in 1929, the market peaked on September 3 and crashed in October as lenders called loans. The resulting losses then spread into businesses, employment, and banking.

Q: How did the stock-market crash affect Americans who owned no stock?

Only 1% to 2% of Americans held stock, but the crash reduced overall wealth and consumption. Businesses consequently struggled to sell goods, stopped hiring, and dismissed workers. The damage became much broader when banks failed because their investments lost value and borrowers went bankrupt. Depositors rushed to withdraw cash, but banks could not repay everyone, causing failures that restricted lending and deepened economic contraction.

Q: Why did so many banks fail during the Great Depression?

Banks lend out much of the money deposited with them, so they cannot immediately repay every depositor if borrowers default and everyone demands cash together. During the Depression, failed loans and falling stock values encouraged bank runs. About 10,000 banks collapsed. The United States system was also fragmented into small banks that lacked sufficient resources and geographic reach to absorb modest regional shocks.

Q: Who determines when an economic depression begins and ends?

The National Bureau of Economic Research identifies the timing of economic contractions for research purposes. It is a nonprofit research organization based in Massachusetts, not part of the government. After sufficient time has passed, its committee determines the month and year when a contraction began and when the economy resumed growing. A depression involves broad economic collapse, including falling production, high unemployment, and slower activity.

Q: How did the Smoot-Hawley Act affect the Great Depression?

The Smoot-Hawley Act, signed by President Hoover in 1930, substantially increased tariffs in an attempt to protect American businesses. Its effect on the United States economy was modest, possibly reducing it by a couple of percentage points, because international trade played a relatively small role domestically. Its global impact was greater because other countries retaliated, tariffs escalated, and world trade contracted through 1932 and 1933.

Q: What caused the Dust Bowl, and did it cause the Great Depression?

The Dust Bowl arose when prolonged drought followed extensive plowing of native prairie grass across Oklahoma, Colorado, Kansas, and northern Texas. Deep grass roots had previously held dry soil in place, but mechanized farming removed them. Windstorms then carried exposed dirt across vast distances. The disaster harmed roughly 100 million acres and caused severe regional suffering and migration, but it did not cause the national Depression.

Q: Could another Great Depression happen under modern conditions?

Another depression could happen, but the conditions discussed for 2022 and 2023 were nowhere near the historical magnitude. Home ownership and car ownership were much higher, while food stamps and other assistance programs existed but had not existed during the Great Depression. The 2008 financial crisis may have exceeded the 1929 financial collapse, yet the Federal Reserve acted to preserve the financial system.

Summary & Key Takeaways

• A speculative boom built on borrowed money made the financial system vulnerable when an ordinary recession began in 1929. Falling stock prices prompted lenders to call loans, causing a cascading crash. Reduced wealth then weakened consumption, employment, and business activity, while bank failures transmitted the crisis throughout the broader economy.

• The Depression produced extraordinary economic hardship. Unemployment reached 25% by 1932, industrial production fell by half, people went hungry, and unemployed workers relied on soup kitchens. The suffering encouraged the creation of federal welfare measures including Social Security, unemployment insurance, a federal minimum wage, and housing subsidies.

• Policy and environmental events intensified particular dimensions of the crisis without fully causing it. The Smoot-Hawley Act encouraged retaliatory tariffs and shrinking global trade, while drought and extensive prairie plowing produced the Dust Bowl. The Depression also drove desperate veterans to Washington and generated lasting concern about another collapse.