Question: what was the main characteristic of post-world war ii american society?
Answer: strong economic growth

The post-World War II economic expansion, also known as the postwar economic boom, the long boom, and the Golden Age of Capitalism, was a period of strong economic growth beginning after World War II and ending with the 1973-75 recession.  The United States, Soviet Union, Western European and East Asian countries in particular experienced unusually high and sustained growth, together with full employment. Contrary to early predictions, this high growth also included many countries that had been devastated by the war, such as Japan (Japanese post-war economic miracle), West Germany and Austria (Wirtschaftswunder), France (Trente Glorieuses), Italy (Italian economic miracle),