Why the 1920s boom happened
The boom rested on three pillars. Republican governments (Harding, then Coolidge) pursued laissez-faire, pro-business policy: low taxation and high protective tariffs (Fordney-McCumber, 1922). Mass production was the engine - Ford's assembly line made the Model T far cheaper, and new goods like radios, Bakelite and cellophane spread fast. Advertising created demand and hire purchase let people buy on instalments, funding much late-1920s spending.
The boom was uneven and unequal
Not all shared in it. New industries surged, but traditional industries - coal, textiles, shipbuilding - declined, hit by newer energy sources, cheaper imports and outdated methods. Agriculture declined all decade: wartime overproduction left a surplus once Europe recovered, and tariffs invited retaliation against US farm exports. Prosperity also bypassed many African Americans and immigrants; around 40% of families lived below a reasonable poverty line even during the boom.
Drawn from real examiner reports.
Mass production vs mass marketing
Candidates confidently cite hire purchase and advertising, but muddle mass marketing (advertising that persuades people to buy) with mass production (the assembly-line method that made goods cheaper to build). They are two connected causes: mass production made goods affordable to make; marketing and hire purchase made buying them appealing. Keep the two separate.
Candidates confuse mass-marketing with mass production (Paper 1).
Missing the word 'traditional'
On whether 'traditional industries' benefited, weaker answers miss the word 'traditional' and describe the boom in general (cars, consumer goods, credit). The question means older sectors - coal, textiles, shipbuilding - which did NOT share the prosperity, hurt by newer energy sources, imports and outdated methods. Answer the sector named, not the boom overall.
Weaker candidates miss the word "traditional" and give generalised boom descriptions (Paper 1).
Treating cars in isolation
On Ford and the motor industry, some focus only on cars and neglect how their growth boosted other industries - steel, rubber, glass, and new roadside businesses (garages, motels, petrol stations). This understates how far mass production's effects spread through the wider economy. Show the knock-on demand cars created, not just the Model T itself.
Some neglect how the boom affected other industries beyond cars (Paper 4).
Naming reasons without detail
Asked why more Americans could buy consumer goods, candidates just name reasons - hire purchase, advertising, low taxation - without developing them (e.g. 'advertising' without noting radio and billboards created demand, or 'hire purchase' without 'paying in instalments'). Bakelite and cellophane are also under-used next to the assembly line and electricity.
Reasons named without supporting detail; new chemical products under-used (Paper 1).
Tariffs and farming misunderstood
The effect of tariffs on farming is poorly understood. High US tariffs protected industry but invited foreign retaliation against American farm exports, worsening the farmers' surplus and falling prices. Candidates often fail to link protective tariffs to lost export markets, leaving the agricultural argument thin. Connect tariff policy to farmers' loss of overseas demand.
Tariffs and their effect on farming are poorly understood (Paper 1).
Don't bring in the 1930s Dust Bowl
Some candidates wrongly cite the Dust Bowl - a 1930s drought and soil-erosion disaster - when the question is about 1920s farming problems. Those 1920s problems were wartime overproduction, lost European markets, mechanisation and tariff retaliation. The Dust Bowl lies outside this Key Question's date range and had different causes; keep it out of a 1920s answer.
Some wrongly bring in the 1930s Dust Bowl on 1920s farming (Paper 1).
Two 1920s boom myths
Two common errors. First, mass production is not mass marketing: mass production is a manufacturing method (Ford's assembly line, supply-side); mass marketing is advertising (demand-side). Second, the economy did not all boom - traditional industries declined, farming was in crisis all decade, and many (African Americans, immigrants, ~40% of families) never shared it.
Candidates confuse mass-marketing with mass production, and assume the whole economy boomed (Paper 1).
Build both sides, then judge
For 'How far did the economy boom?', build two sides: FOR - policy, mass production, advertising, hire purchase; AGAINST - declining traditional industries, farm collapse, unequal wealth. End with a weighed judgement - real but partial - not restated evidence.
Match the command word
Part (a) 'describe' answers should be short and factual - no background or explanation. Part (b) 'why' questions must explain reasons, not describe what happened; scene-setting narrative earns nothing. Check the command word before writing.
Stay inside the date range
Keep strictly to the 1920s. Material outside the range dilutes relevance, and drifting into the 1930s (the Dust Bowl, the Depression) is a common fault on this topic. Check the question's dates and cut anything that falls outside them.
Name the group, not 'many people'
When arguing prosperity was uneven, name specific groups - African Americans in the segregated South, recent immigrants, farmers, coal and textile workers - rather than vague claims like 'many people were poor'. Named, specific detail scores higher than generalisation.
The US economy grew rapidly during the 1920s, fuelled by mass production, favourable government policy, and new ways for consumers to buy goods on credit. But the boom was uneven: while new industries and urban consumers prospered, traditional industries and agriculture declined throughout the decade, and prosperity was not shared by all Americans.
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