Cambridge (CIE) IGCSE History
How Far Did the US Economy Boom in the 1920s?
Big idea: The 1920s US economy boomed hard and fast — thanks to mass production, consumer credit, and hands-off government policy — but the boom was built on shaky foundations (overproduction, speculation) and left huge groups of Americans (farmers, Black Americans, women, immigrants, Indigenous Americans) completely behind.
Summary — The Whole Chapter in One Scan
- 1919 America was tense: WWI had just ended, immigration fears were high, and racial tensions (Jim Crow Laws, the KKK) were rising.
- The economic boom of the 1920s was driven by: the effects of WWI, mass production (Henry Ford's Model T), new technology (electricity, radios), hire-purchase credit, laissez-faire Republican government policy, and stock market confidence.
- Not every industry boomed. New industries (cars, construction, synthetics) thrived; old ones (coal, textiles, shipbuilding, railways) declined.
- Agriculture was in crisis throughout the boom — overproduction crashed prices, and machinery put unskilled farm workers out of work.
- The boom was not shared equally. Wealthy white, urban, male Americans gained the most. Farmers, Black Americans, Indigenous Americans, immigrants, and women mostly did not benefit.
1. What Was America Like in 1919?
Before you can understand the "boom," you need to picture the mood in America right before it — because a lot of what happens in the 1920s (fear of outsiders, racial violence, political conservatism) is really a reaction to the instability of 1919.
The impact of the First World War
WWI cut both ways for the US. Think of it like a business that had a huge, temporary spike in orders — great while it lasted, but painful when the orders suddenly stopped.
Positive impacts
- Huge industrial growth supplying the Allies with weapons, food, supplies
- Loans to other nations increased US wealth once repaid
- New York replaced London as the world's financial centre
Negative impacts
- Inflation pushed up the cost of living
- Returning soldiers struggled to find jobs
- Veterans got little government help to reintegrate
- Wartime demand for factory/farm goods collapsed once peace was declared
Immigration into the US
Between 1850 and 1914, around 40 million people had emigrated to the US — the largest movement of people in recorded history, mostly from Southern and Eastern Europe. This alarmed the descendants of earlier North-Western European settlers, who called themselves WASPs (White Anglo-Saxon Protestants).
WASP anxieties fell into three categories — worth remembering as a trio for exam answers:
- Economic problems: immigrants accepting low wages, "taking" jobs
- Political problems: fear immigrants might bring dangerous ideas (e.g. communism, fresh after the Russian Revolution)
- Social problems: fear of overcrowded slums, disease, crime, and "un-American" loyalty
Laws that Limited Immigration
1917Immigration Law: literacy test in English, Asians barred, $8 entry fee
1921Emergency Quota Act: capped Eastern Hemisphere immigrants at 3% of 1910 population; max 357,000/year
1924Reed–Johnson Act: quota cut to 2% of 1890 population; max reduced to 154,000/year
Racial tensions in the US
Jim Crow Laws