What economic condition did economist john maynard keynes believed caused great depression

 The correct answer is : He believed that the Great Depression had been caused by the lack of government interference in the economy.

Keynes was a British economist who wrote a book entitled "The general theory of employment, interest and money, where he tried to explain about the Great Depression. He argued that if the government invested more money to help the economy recover the money that consumers and businesses spend, then in this way unemployment rates would decrease.

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