Economic history · The Great Depression

The Boom and the Fall

Six steps, about nine minutes, a question at each. You need no economics and no preparation, only a willingness to guess before you are told.

By 1933 American unemployment had reached the worst level of the century. The fall had started two months before the crash people remember.

Almost every account of the Great Depression starts with the Wall Street crash of October 1929, when share prices collapsed in a few days.

The boom before it was bought with borrowed money, America's central bank had been raising interest rates since 1928 to stop that borrowing, and the American economy had already stopped growing in August, two months before the crash. It then went on shrinking for years on end, and unemployment rose to the worst level of the century.

Six steps cover the boom, the borrowing behind it, the two days themselves, and the long fall that followed.

What this module covers

  • The peak on the Dow, and the borrowed money behind it
  • The interest rate rises that came before the crash
  • Why the crash is not where the Depression starts
  • Black Thursday and Black Tuesday, and what the days were
  • The longest fall on record, and how long it ran
  • Three American workers in a hundred, and what happened by 1933

Written for every level. Tap any underlined word for what it means, and open the boxes below for the economics behind each decision. If you already know the theory, skip both and the history reads straight through.

Step 1 of 6

Step 1 · 1921 to September 1929

The boom, and the borrowed money in it

The crash is the famous part of this story. The part that is not famous is that a great many of the buyers had borrowed the money they were buying with.

American prices rose through the 1920s, and on 3 September 1929 the average of them reached about 381, the highest it had ever been.

Many of those shares were not paid for in full: a buyer put down a small part of the price and borrowed the rest.

Ordinary people were buying shares that way in the 1920s, and not only people who could pay the whole price.

Borrowing to buy costs the buyer very little while prices are rising, because the share can be sold for more than was borrowed against it.

share
A part-ownership of a company. Its price is whatever somebody will pay for that part, so it moves with what buyers think the company is worth.
Dow Jones
An average of the share prices of a group of large American companies, used since 1896 as a single number for how the American stock market is doing. It is not the whole market, only a sample of it.

Take a guess. You are not expected to know the answers, and being wrong is what makes a number stick.

Shares were often bought with a small payment down and the rest borrowed. What does a falling share price do to that buyer?

For scale. Shares were being bought with a small part of the price paid and the rest borrowed.

Step 2 · 1928 and 1929

The Federal Reserve moved first

The Federal Reserve, America's , raised the American in 1928 and 1929, before the crash.

The interest rate the Federal Reserve sets acts as a floor under the interest rates paid on other loans in the country.

Farms, factories and households all paid for it, because a higher interest rate reaches every person who borrows.

Tighter money therefore reached the whole economy, and not only the one market it was aimed at.

central bank
The bank a government sets up to issue its money and set the interest rate the rest of the banking system builds on. Its counterparties are banks and the state rather than the public, and how far it goes in spending for the state has varied a great deal by country and by period.
interest rate
The price of borrowing money, given as a percentage of the amount borrowed each year. The Bank of England sets one rate that acts as a floor under the rest, so when it moves, mortgages, loans and savings rates move with it.

The Federal Reserve raised interest rates in 1928 and 1929. What was it trying to stop?

For scale. Share prices went on rising anyway, and reached their highest point in September 1929.

Step 3 · August 1929

The fall started before the crash

The American economy stopped growing in August 1929, two months before the Wall Street crash.

Stopped growing means the country stopped producing more than it had the year before and began producing less. The Wall Street crash was the days in October 1929 when share prices collapsed.

The peak of the American economy is dated to August 1929, and the fall in factory production is dated from the same month.

The crash happened in a few days, in one place, to people whose names were known, and the fall in the wider economy had already begun.

Put these four things in the order they happened.

For scale. Every American rise and fall in the economy since 1854 has been dated the same way.

Step 4 · October 1929

Black Thursday and Black Tuesday

Share prices collapsed on two days in October 1929 that are still named: Black Thursday, the 24th, and Black Tuesday, the 29th.

Sellers on both days had almost no buyers to sell to, so prices fell as far as they had to fall to find anyone at all.

Prices went on falling long after October, and the fall did not stop until 1932.

Anybody who had borrowed to buy now owed more than the shares were worth. The crash on its own is not what caused the Great Depression, and it was not nothing either.

About sixteen million shares changed hands on Black Tuesday. Prices went on falling until 1932. How far below its peak was the market at the bottom?

For scale. Share prices had reached their highest point ever seven weeks earlier, on 3 September 1929.

Step 5 · 1929 to 1933

How long it lasted

The American economy started shrinking in August 1929 and did not grow again for years.

A stretch of months when the economy shrinks is a . Most last under a year, and most people who live through one keep their jobs.

Every American rise and fall since 1854 has been dated, and no other fall in the record comes close to this one.

Savings can carry a family through one bad year. The length is what separates the Great Depression from an ordinary bad patch.

recession
A period in which the economy shrinks rather than grows, usually counted as two or more three-month periods of falling output in a row. Firms sell less, so they employ fewer people, so households spend less again.

Most American falls in the economy last under a year. How many months did this one run?

For scale. The fall that followed, in 1937 and 1938, ran 13 months.

Step 6 · 1929 and 1933

What it did to work

American rose from 3.2 per cent of workers in 1929 to its worst level of the century by 1933.

The unemployment rate counts every person who wants paid work and has none, as a share of all the people who want it.

The unemployment rate in 1929 was 3.2 per cent. The figures for the years after it were built later, by the Bureau of Labor Statistics, from records kept for other purposes.

At 3.2 per cent, having no job was bad luck. By 1933 it had stopped being bad luck.

unemployment
The number of people who want paid work and cannot find it, usually given as a share of all those working or looking for work. People who are not looking are not counted, so the figure understates how many are out of work.

Out of every 100 American workers in 1933, how many had no job?

For scale. In 1929, before the fall, the unemployment rate was 3.2 per cent.

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What this module covered

The peak on the Dow

about 381 on 3 September 1929, bought partly on borrowed money

When interest rates were raised

1928 and 1929, before the crash

When the economy stopped growing

August 1929, two months before the crash

The two named days

24 and 29 October 1929, and about 90% gone by the 1932 low

How long the fall lasted

43 months, to March 1933

, 1929 and 1933

3.2%, then 24.9%

You met six terms in this module

, , , , ,

share
A part-ownership of a company. Its price is whatever somebody will pay for that part, so it moves with what buyers think the company is worth.
Dow Jones
An average of the share prices of a group of large American companies, used since 1896 as a single number for how the American stock market is doing. It is not the whole market, only a sample of it.
central bank
The bank a government sets up to issue its money and set the interest rate the rest of the banking system builds on. Its counterparties are banks and the state rather than the public, and how far it goes in spending for the state has varied a great deal by country and by period.
interest rate
The price of borrowing money, given as a percentage of the amount borrowed each year. The Bank of England sets one rate that acts as a floor under the rest, so when it moves, mortgages, loans and savings rates move with it.
recession
A period in which the economy shrinks rather than grows, usually counted as two or more three-month periods of falling output in a row. Firms sell less, so they employ fewer people, so households spend less again.
unemployment
The number of people who want paid work and cannot find it, usually given as a share of all those working or looking for work. People who are not looking are not counted, so the figure understates how many are out of work.

Savings can carry a family through one bad year. Ten years of it starts with the banks.

Take it further

Where every figure came from

[1] The boom, the tightening, and how much the crash mattered: Federal Reserve History, Stock Market Crash of 1929 and The Great Depression. On the boom: margin accounts let ordinary people buy shares with borrowed funds. On policy: "the Fed's decision to raise interest rates in 1928 and 1929. The Fed did this in an attempt to limit speculation in securities markets." On weight: the crash's impact faded within a few months, and trouble in another part of the financial system is what turned the fall into the longest depression on record. The essay records Allan Meltzer, a historian of the Federal Reserve, calling the crash a symptom rather than a force.
[2] The peak, the day itself, and the fall to 1932: Economic History Association, An Overview of the Great Depression, and Bierman, The 1929 Stock Market Crash. Bierman gives the record high as 381.2 on 3 September 1929, 16,410,030 shares traded on 29 October, and stocks down nearly 90 per cent by 1932. Parker's overview dates the fall in factory production from August 1929, says economists know the crash and the Depression were not the same event, and adds that there is no doubt the crash was one of the things that got the ball rolling.
[3] When the fall started and stopped, and how the crash reached the shops: National Bureau of Economic Research, US Business Cycle Expansions and Contractions, and Romer, The Great Crash and the Onset of the Great Depression. The NBER dates the peak of the American economy at August 1929 and the trough at March 1933, a fall of 43 months. The next one runs May 1937 to June 1938, 13 months, and no later fall in the table comes close to the first. Romer's paper sizes the crash's effect through households: the crash left people uncertain about their future income, and they cut their buying of expensive, long-lasting goods.
[4] The two named days: Library of Congress, Stock Market Panics, US History Primary Source Timeline. The guide names Black Thursday, 24 October 1929, and Black Tuesday, 29 October 1929, and records some 16 million shares changing hands. The FDR Presidential Library puts the 16 million on the 24th instead; three institutions put it on the 29th, and the 29th is the day printed here.
[5] The record high, and what the crash did not do: Herbert Hoover Presidential Library and Museum, The Great Depression. "At its peak on September 3, 1929, the Dow hit 381.17", plus the exhibit's account of shares bought on credit and its record of the market's bottom at 41.2. It also states that while the market crash did not cause the Great Depression, it was a factor.
[6] The government's own words on the crash: US National Archives, The Unwritten Record, Black Tuesday. "While the crash alone did not cause the Great Depression" is the American government's own record office stating the central claim in its own words, and it is one of four institutions that state both halves of it.
[7] What happened to jobs: Congressional Research Service, Labor Market Data: Great Depression vs. Recent Recession, R40655. The unemployment rate rose from 3.2% in 1929 to 24.9% in 1933. The report notes that the 1930s figures are estimates made afterwards, built so that they can be compared with the survey used today.
[8] What the fall looked like inside one firm: US Department of Labor, History, Chapter 5: Americans in Depression and War. The chapter records United States Steel employing 224,980 full-time workers in 1929 and none at all on 1 April 1933, which is what a collapse looked like inside one company. It also records that the Bureau of Labor Statistics built the 1930s unemployment figures afterwards, from records kept for other purposes.

Country data from the World Bank (CC BY 4.0) and the UNDP Human Development Report (CC BY 3.0 IGO)
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