6.1 Causes of the Depression, the 1929 Crash, and Hoover

The Great Depression is a high-frequency topic on History of the United States II because it tests whether you can separate a stock-market crash from a structural collapse, and whether you can describe what the federal government did before Franklin D. Roosevelt took office. Independent OpenExamPrep material for this exam treats 1929–1933 as Herbert Hoover’s political era, not a preview of the Hundred Days. Questions typically pair causes (overproduction, unequal income, speculation, fragile banks) with responses (volunteerism, the Reconstruction Finance Corporation, the Bonus Army) and with the Dust Bowl as an environmental disaster that wrecked already-stressed farms.

Structural Weaknesses Behind the Crash

The 1920s looked prosperous in cities, automobiles, radios, and electric appliances, but the boom rested on uneven foundations. Overproduction in both industry and agriculture outran the ability of ordinary households to buy what factories and farms produced. During World War I, American farmers had expanded acreage to feed Europe. When European agriculture recovered, wheat, cotton, and other staples glutted markets, prices collapsed, and rural debt soared. Factories, flushed with installment-credit sales, kept expanding capacity even as inventories piled up. Mass production required mass consumption; by the late 1920s, consumption lagged.

Unequal income distribution made that lag worse. Gains from productivity and stock appreciation concentrated among corporations and high earners, while wages for many industrial and farm workers stagnated. A small slice of households could absorb luxury goods and securities; they could not, by themselves, purchase the output of a fully employed industrial plant. When credit tightened or confidence broke, there was no broad purchasing-power cushion.

Speculation and buying on margin turned the stock market into a credit bubble. Investors could purchase shares by putting up a fraction of the price—commonly around 10 percent—and borrowing the rest from brokers, who in turn borrowed from banks. As long as prices rose, the system paid. A decline triggered margin calls: brokers demanded more cash; if it did not arrive, they sold the collateral, driving prices down further. Call loans linked Wall Street to the banking system, so a securities panic could freeze ordinary credit.

Weak banking completed the trap. The United States still had thousands of small, undiversified unit banks, especially in farming regions, with no federal deposit insurance. A rumor could start a run. When a bank failed, depositors lost savings, local lending stopped, and neighboring banks came under pressure. Rural bank failures had already been common in the 1920s; after 1929 they became a national cascade. Roughly 9,000 banks failed from 1930 through 1933. The Federal Reserve, focused earlier on cooling speculation, did not act consistently as a lender of last resort once panic spread.

How Exam Items Connect Causes

The stock-market crash was a trigger, not the sole cause. Independent OpenExamPrep review questions expect you to keep that distinction. Structural problems were already visible in agriculture, banking, and income. The crash destroyed paper wealth, froze credit, and turned a recession into a depression.

Black Thursday and Black Tuesday, 1929

After a long bull market, prices cracked in the autumn of 1929. Black Thursday, October 24, 1929, brought a wave of panic selling in New York. Leading bankers briefly tried to stabilize the market by pooling purchases, and some observers hoped the worst had passed. It had not. Selling resumed, and Black Tuesday, October 29, 1929, saw a collapse in prices and a record volume of shares dumped onto the exchange. Fortunes built on margin vanished in hours. The Dow Jones Industrial Average would continue falling into 1932, wiping out most of the 1920s paper gains.

The crash did not immediately produce 25 percent unemployment; that peak came as banks failed, factories cut production, and deflation raised the real burden of debt. But it shattered confidence. Businesses postponed investment. Consumers postponed purchases. International investors pulled back from a world already strained by war debts and German reparations.

Smoot-Hawley and the Collapse of Trade

On June 17, 1930, President Hoover signed the Smoot-Hawley Tariff Act (Tariff Act of 1930), raising U.S. duties on thousands of imported goods. The bill had begun as farm relief; congressional logrolling turned it into a general protectionist statute. More than a thousand economists petitioned Hoover to veto it. Foreign governments retaliated with their own tariffs and quotas. American exports—already hurt by weak foreign demand—fell further. Smoot-Hawley did not start the Depression, which was underway before June 1930, but it is the standard legislative example of how nationalist trade policy deepened a global slump. Do not treat it as Hoover’s only mistake, and do not date it to 1929.

The Dust Bowl as Agricultural and Environmental Crisis

Independently of Wall Street, the Great Plains entered an environmental catastrophe. During the wetter years of the 1910s and 1920s, farmers had plowed native grassland to plant wheat. When drought returned in the 1930s—especially in the southern Plains of Oklahoma, Texas, Kansas, Colorado, and New Mexico—winds lifted the exposed topsoil into “black blizzards.” The Dust Bowl ruined harvests, buried equipment, and damaged lungs. Combined with already-low crop prices and heavy mortgages, it pushed tenants and small owners off the land. Migrants, often labeled “Okies” regardless of state origin, headed west, many toward California’s agricultural valleys. The Dust Bowl belongs in Depression causation as an agricultural and environmental crisis, not as a footnote to the ticker tape. New Deal soil-conservation programs come later; Hoover’s farm policy did not reverse the drought.

Hoover: Volunteerism, the RFC, and the Limits of Associationalism

Herbert Hoover was not idle, but he rejected large-scale direct federal relief to individuals as a threat to self-reliance and to local and state responsibility. His first instinct was volunteerism (sometimes called associationalism):

• Conferences with business leaders asking them to maintain wages and investment
• Appeals to private charity, churches, and the Red Cross
• Federal encouragement of local public works rather than a national jobs payroll
• The Agricultural Marketing Act (1929) and Federal Farm Board, which tried to stabilize crop prices by buying surpluses and failed once warehouses overflowed

As unemployment mounted, charity and city treasuries were overwhelmed. Shantytowns of unemployed families, sarcastically named Hoovervilles, appeared in cities. Newspapers became “Hoover blankets”; empty pockets were “Hoover flags.”

On January 22, 1932, Hoover signed legislation creating the Reconstruction Finance Corporation (RFC). The RFC lent federal money to banks, railroads, and other large institutions on the theory that credit restored at the top would revive production and jobs—trickle-down emergency finance. Later in 1932, under political pressure, Congress expanded RFC authority toward state relief and public works through the Emergency Relief and Construction Act, still far short of a national jobs program. Critics charged that Hoover would bail out banks but not starving families. That contrast is a classic exam pairing.

The Bonus Army, 1932

In the summer of 1932, thousands of World War I veterans—the Bonus Army or Bonus Expeditionary Force—camped in Washington, D.C., to demand early payment of a service bonus that Congress had scheduled for 1945. The House passed a payment bill; the Senate rejected it. After most marchers stayed, Hoover authorized their removal from federal buildings. On July 28, 1932, Army troops under General Douglas MacArthur, with Dwight D. Eisenhower on the staff and George S. Patton among the officers, drove veterans and their families from Anacostia Flats and burned the camp. News photographs of cavalry and tear gas used against veterans devastated Hoover’s remaining public standing. The episode did not create the Depression, but it crystallized the image of a president more anxious about disorder and the budget than about immediate human suffering.

By March 1933 unemployment was about one-quarter of the civilian labor force, thousands of banks had failed, and the lame-duck winter—before the Twentieth Amendment moved inauguration to January—left a vacuum. The next section turns to Roosevelt’s First New Deal. Do not import the Civilian Conservation Corps, Agricultural Adjustment Administration, or National Recovery Administration into Hoover’s record; those are 1933 statutes.

Exam traps: confusing the 1929 crash with Smoot-Hawley (1930); treating Hoover as a do-nothing president rather than as a limited-state volunteerist who created the RFC; dating the Bonus Army to 1929; and forgetting that the Dust Bowl was an environmental disaster overlapping the Depression, not a Wall Street event.