Most immigrants to the U.S. in the 1980s and 1990s were from

One of the major reasons for the U-shaped average total cost curve is the fact that

A) there are increasing returns from labor regardless of the number of workers employed. B) there eventually are decreasing returns from labor as more workers are employed. C) prices fall as output increases. D) the average fixed cost increases as more output is produced. E) the variable cost decreases as more output is produced.

The Bretton Woods system:

a. allowed for market-determined exchange rates. b. ended the use of the gold standard in all participating countries. c. led to a dramatic increase in the U.S. balance of payments deficit. d. resulted in the rapid increase of the U.S. gold supply in the 1960s. e. All of the above.