How did World War II affect the American econmony?
It is generally agreed that World War 2 provided a major stimulus to the American economy, starting a boom that has continued, with intermittent setbacks, till the beginning of the current depression. Various elements of the New Deal that had experienced only limited success during the 1930s really came to fruition with the war as demand from Europe and other theatres of conflict increased. Armaments are an obvious example but electrics and electronics as well as shipping, steel, food and agriculture and many other industries prospered too, and at the end of the war America was virtually alone among the major nations in having an economy that was not only intact but ready to drive the rest of the world back into economic health. Check out sites such as wikipedia and many others by googling american economy + world war 2.