To my knowledge Communism is the 4th. Therefore, its false
I believe that the answer to the question provided above is <span>economist John Kenneth Galbraith believe that America's postwar economy was a new phenomenon, because of the status of America compared to other countries.</span> Hope my answer would be a great help for you. If you have more questions feel free to ask here at Brainly.
The answer you are looking for is "World War I"