1. Structure of the Global Economy: Gold Standard and monetary links
2. Sanctions to Germany after the WWI
3. Deregulation of capital markets
4. US Policy: Hoover and the FED bad policies

The Great Depression was the deepest economic crisis in history. Millions of people fell into poverty and unemployment, not only in the United States but around the world. Economists are still learning the lessons of the Great Depression

Before WWI, London was the biggest world financial hub. London banks financed economic expansion in developing countries.

After WWI, New York emerged as the global center for world finances. U.S. banks gave loans to governments, banks, and companies from other countries, including Germany.

In many countries, Gold Standard was still in effect after WWI. Gold Standard is a monetary system where the quantity of money in circulation is in direct relation with the gold reserves of the monetary authority. The monetary authority purchases and sells gold at a fixed rate.

Gold Standard implies that there is a fixed exchange rate and countries cannot devalue its currency nor conduct an expansive monetary policy. The monetary base is a fixed relationship with the gold reserves. Research shows that countries that left the Gold Standard earlier, saw a greater reduction in the impact of the Great Depression.

Nowadays, many central banks and monetary authorities would increase the monetary base to ease pressures on the real economy. This was not possible under the Gold Standard.

Although Germany left the Gold Standard before 1929, the U.S didn't. America couldn't use one of the most important economic policy instruments.

As we will see below, when there is a fixed exchange rate, fluctuations in the interest rate do have an impact in short term capital flows and foreign monetary base. When the interest rates raised in the U.S., this had a negative impact on foreign finances and real economies.

Germany was the biggest defeated country in the first world war. The U.S., England, and France were victorious. In 1929, representants of this countries gathered in Versailles, France, to sign a treaty. Italy and Japan, the other defeated countries, were also there. The Treaty of Versailles imposed large economic sanctions to the defeated, mainly to Germany.

New York World [Public domain]

Germany was devastated after the war and the sanctions worsened the economic situation. Keynes, an economic advisor to England, warned that the imposed sanctions would have negative consequences, not only for Germany but for Europe. History proved him right.

Germany had to pay US$33 Billions in reparations. Hitler blamed the winners for the misfortune of Germany. During the 1930s, nationalist movements started to gain traction in Germany and Italy. The fear of another was had a negative economic impact also in the U.S.

Many German companies hold debt. They were hit when the U.S. interest rate spiked, weakening the U.S. monetary system.

Since 1926, the U.S. experienced strong economic growth. Industries expanded quickly, particularly sectors like durable goods. Unemployment was low and there was no fear of unemployment.

Families started to take loans to finance expenditure. Before 1929, some even took loans to finance the purchasing of stocks. Prices in Wall Street were raising. There was a lack of strong regulation, and some practices that are forbidden now were allowed. For example, it was allowed to manipulate the prices by using a group purchasing scheme, and the sell the assets at a higher price.

The FED started to look at the situation with caution. In 1927, a more restrictive monetary policy was applied. This had a severe impact on foreign finances. In 1927, the German stock exchange collapsed, followed by Britain in 1928 and France in 1929.

Some investors started to look at the situation with caution, but others kept enjoying prosperity.

Huge financial speculation led to assets overpricing. Certain industries were also oversized. At first, people started to see stock prices with caution. Stock indices fell sharply and then recovered. People started to follow the evolution of stock prices with interest.

On Thursday 24 October 1929, Black Thursday, Wall Street fell 11%. While the market recovered, there were more falls after that day and they accumulated to a huge fall of 89% of its value in 1931.

The fall of Wall Street ended with the prosperity climate. Families stopped to take loans and reduced the purchase of durable goods. Factories were hit and unemployment rose.