To comprehend the Great Depression is the pinnacle of macroeconomics.

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Preamble

To comprehend the Great Depression is the pinnacle of macroeconomics. The depression gave dawn to macroeconomics as an apparent field of study, and to this day the events of the 1930s continue to persuade macroeconomists’ beliefs, policy recommendations, and study programs. “Black Thursday”, October 24, 1929 heralded the end of the "Roaring Twenties", as the speculative bubble burst and panic set in within the stock market. 13 million shares were traded within the single day, as investors tried desperately to get rid of their shares before they became worthless. On that day alone four billion dollars had been lost on the New York Stock Exchange, and by the end of the year, stock values had dropped by fifteen billion dollars. The shocks to consumer confidence meant that consumption and investment came to a standpoint all over the world. These shocks had already been brewing and most economies had already peaked well before the stock market crash, but the crash was the commencement of the Great Depression.

Throughout the following pages the Great Depression will be explained through the use of a variety of graphs and explanations, these will be given to outline the negative shocks to the economy during the 1930s. It is also important to find out if the Great Depression can happen once more; therefore its imperative to find out if it is relevant to modern policy.

Balancing the Budget

Personally, the poor state of economic intelligence during the late 1920s and the 1930s is in my belief one of the greatest contributors to the Great Depression. Take this statement from President Hoover:

“It would steady the country greatly if there could be prompt assurance that there will be no tampering or inflation of the currency; that the budget be unquestionably balanced even if further taxation is necessary.” (Myers & Newton 1936, pp. 339-340)

Mr. Hoover’s (as well as Franklin Roosevelt’s from 1932 onwards) aim of achieving a balanced budget and not tampering with the economy was one of many primary causes for aggregate demand falling during the 1930’s. These Presidents thought that if the budget was steady and balanced, the economy would also be steady and balanced. From 1930s onwards the budget was well out of balance, and the only way to achieve a balanced budget meant increasing taxes and/or reducing government spending. The effect of increasing taxes and/or reducing government spending in a time when consumer confidence was dwindling lead to a fall in aggregate demand (top graph below). This initial fall in aggregate demand lead to a larger than proportional decrease in expenditure (bottom graph, move from A to B), this is known as the negative multiplier:                 

Low Consumer Confidence

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According to Keynes trying to achieve a balanced budget was the most inappropriate thing a Government could do in a period of low consumer confidence. In his 1936 publication of The General Theory of Employment, Interest, and Money, Keynes gave the following insight:

"If the Treasury were to fill old bottles with banknotes, bury them at suitable depths in disused coalmines which are then filled up to the surface with town rubbish, and leave it to private enterprise on well-tried principles of laissez faire to dig the notes up again . . . there need be no more unemployment . ...

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