1. When the economy of European and Asian were deep in difficulties after WWII, the U.S. was enjoying a period of_______________________.
2. Until the 1980s Americans began to realize their_____________was on the decline.
3. The loss of U.S. predominance in the world economy caused_______________.
4. According to the passage. some findings tended to attribute the causes of America's industrial decline to_____________.
5. What was the reason for the revival of the U.S. economy in the l990s in the author's opinion?