What economic weaknesses of the 1920s caused the Great Depression?
Explain the causes of the Great Depression, including the stock market crash, overproduction, uneven distribution of wealth, excessive credit, and bank failures (Ohio's Learning Standards for Social Studies, American History, Prosperity, Depression and the New Deal).
A standard-level answer on the causes of the Great Depression for Ohio's American History EOC: the 1929 stock market crash, buying on margin and speculation, overproduction and underconsumption, the uneven distribution of wealth, excessive credit and debt, and the wave of bank failures.
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What this topic is asking
This part of the Prosperity, Depression and the New Deal topic asks why the prosperous 1920s gave way to the worst economic collapse in American history, the Great Depression. The Ohio standards (content statement on how the prosperity of the 1920s led to economic weaknesses that contributed to the Depression) want the multiple causes: the 1929 stock market crash and the deeper structural problems behind it.
The stock market crash of 1929
The crash was the dramatic trigger of the Depression:
The crash by itself did not cause the Depression, but it exposed and triggered the weaknesses underneath.
The deeper structural causes
Behind the crash lay several long-building problems:
- Overproduction and underconsumption. Factories and farms produced more than Americans could buy, so unsold goods piled up and prices for farmers fell.
- Uneven distribution of wealth. A large share of the new wealth went to the rich, while most workers and farmers earned too little to keep buying.
- Excessive credit and debt. Families and farmers had bought cars and appliances on installment plans, so when incomes fell they were trapped by debt.
- A weak banking system. Banks were poorly regulated, many had made risky loans, and there was no federal insurance for deposits.
- Struggling agriculture. Farmers had been in trouble all through the 1920s as crop prices stayed low.
The downward spiral
Once the collapse began, it fed on itself:
- Bank failures destroyed savings and froze lending.
- Businesses cut production and laid off workers.
- Unemployment soared, so people bought even less, forcing still more layoffs.
- High tariffs (the Hawley-Smoot Tariff, 1930) cut world trade as other nations retaliated, hurting American exports.
The Ohio connection
Ohio's economy depended on heavy industry, so the Depression hit the state hard. Steel mills in the Mahoning Valley, rubber plants in Akron, and auto-parts factories across northern Ohio slashed production and laid off thousands. Industrial cities saw widespread unemployment, foreshadowing the relief and public-works programs of the New Deal.
Why this matters for the EOC
This topic rewards listing multiple causes (not just "the crash") and tracing a cause-and-effect chain into the downturn. Expect a chart of stock prices, unemployment, or bank failures, or a quotation about the crash, to read for the main idea. The big idea the standards want is that the prosperity of the 1920s contained the weaknesses (speculation, overproduction, uneven wealth, easy credit, weak banks) that caused the Great Depression.
Try this
Q1. What does it mean to buy stocks "on margin," and why was it dangerous? [2]
- Cue. Paying only a small fraction of the price and borrowing the rest; when prices fell, investors could not repay and had to sell, deepening the crash.
Q2. Name two structural weaknesses of the 1920s economy that helped cause the Depression. [2]
- Cue. Any two of overproduction, uneven distribution of wealth, excessive credit and debt, a weak banking system, or struggling farmers.
Exam-style practice questions
Practice questions written in the style of ODEW exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
Ohio American History EOC1 marksWhich practice of the late 1920s helped cause the stock market crash by letting investors borrow most of the cost of their shares? (A) installment buying (B) buying stocks on margin (C) the gold standard (D) deficit spendingShow worked answer →
A 1-point multiple-choice item on the causes of the crash.
The correct answer is B. Buying on margin meant paying only a small fraction of a stock's price and borrowing the rest. When prices fell in 1929, investors could not repay these loans, forcing them to sell, which drove prices down further and deepened the crash.
A, installment buying, applied to consumer goods, not stocks. C and D are unrelated policies. The standards stress margin buying and speculation as drivers of the 1929 crash.
Ohio American History EOC2 marksThe Great Depression had several causes. (a) Identify two economic weaknesses of the 1920s that helped cause it. (b) Explain how one of them contributed to the Depression.Show worked answer →
A 2-point constructed-response item on the causes of the Depression.
(a) 1 point: any two of stock speculation and buying on margin, overproduction (factories and farms producing more than people could buy), uneven distribution of wealth, excessive consumer and farm debt from buying on credit, weak banks, or high tariffs that hurt trade.
(b) 1 point: a clear explanation of how one cause worked, for example that overproduction meant unsold goods, so factories cut production and laid off workers, who then bought even less, deepening the downturn; or that bank failures wiped out depositors' savings and choked off lending. Scorers reward a clear cause-and-effect chain.
Related dot points
- Explain how the prosperity of the 1920s, mass production, consumer credit, the automobile, and new mass culture transformed American society (Ohio's Learning Standards for Social Studies, American History, Prosperity, Depression and the New Deal).
A standard-level answer on the Roaring Twenties for Ohio's American History EOC: the postwar economic boom, mass production and the assembly line, the automobile, consumer credit and advertising, radio and movies, and the new mass culture, with the Ohio rubber and auto-parts economy.
- Explain the cultural conflicts of the 1920s, including Prohibition, the Scopes trial, nativism and the revived Ku Klux Klan, and changing roles for women (Ohio's Learning Standards for Social Studies, American History, Prosperity, Depression and the New Deal).
A standard-level answer on 1920s cultural conflict for Ohio's American History EOC: Prohibition and bootlegging, the Scopes trial and fundamentalism versus modernism, nativism and the revived Ku Klux Klan, and the new roles of women and flappers, with the tension between rural and urban America.
- Explain the human impact of the Great Depression, including mass unemployment, Hoovervilles, the failure of Hoover's response, and the Dust Bowl on the Great Plains (Ohio's Learning Standards for Social Studies, American History, Prosperity, Depression and the New Deal).
A standard-level answer on the human impact of the Great Depression for Ohio's American History EOC: mass unemployment, breadlines and Hoovervilles, President Hoover's limited response, and the Dust Bowl that drove farm families from the Great Plains, with the regional differences the standards stress.
- Explain the New Deal, including relief, recovery, and reform programs, the expanded role of the federal government, and the debate over the New Deal (Ohio's Learning Standards for Social Studies, American History, Prosperity, Depression and the New Deal).
A standard-level answer on the New Deal for Ohio's American History EOC: Franklin Roosevelt's relief, recovery, and reform programs, the alphabet agencies, Social Security, the expanded role of the federal government, and the debate for and against the New Deal.
- Explain the causes and effects of the Great Migration of African Americans to northern cities and the cultural achievements of the Harlem Renaissance (Ohio's Learning Standards for Social Studies, American History, Prosperity, Depression and the New Deal).
A standard-level answer on the Great Migration and the Harlem Renaissance for Ohio's American History EOC: the push and pull factors that drew African Americans north, the growth of Black urban communities, the literary and musical flowering of the Harlem Renaissance, and the rise of jazz, with the migration to Ohio cities.
Sources & how we know this
- Ohio's Learning Standards for Social Studies — Ohio Department of Education and Workforce (2019)
- American History (High School State-Tested Courses Resources) — Ohio Department of Education and Workforce (2024)