In what ways was the “unsustainable” peace of WW1 the main cause for WW2?

Because of resources that there will be have in a country America

john maynard keynes developed new economic theories in response to the : b) great depression of the 1930s. his theories are so important that they are known as "keynesianism". in his works he supports the idea of a government with deeper involvement and intervention to end the great depression.