Buying on margin was a method of buying stocks

  Buying on margin was a method of buying stocks with mostly borrowed money. The stock market crash caused the Great Depression. One cause of the Great Depression was that, in response to workers' demands, wages rose faster than corporate earnings, causing factories to go bankrupt.

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the phenomenon that would be cited as evidence of increased economic interdependence between europe and the americas is  the development of mercantilism.

this theory suggests that the wealth of a country depends on its economic assets, or capital.

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