American Airlines makes numerous nonstop flights from Chicago's O'Hare Airport to the airport at Dallas-Fort Worth. The distance between those two cities is 1,000 miles. The only variable cost, fuel, costs $.06 for each passenger-mile it flies. Bob, on his way to an emergency business meeting, buys a ticket in coach class for $1,300 at the very last minute. The marginal cost of flying Bob from

According to Hughes and Cain (2011), American economic history is the story of economic growth. Economic growth

(a) necessarily means an improvement in the quality of life for all individuals. (b) does not necessarily measure an improvement in the quality of life; it merely indicates the potential for improvement. (c) as conventionally measured considers an employed person living in the pollution and congestion of modern Tokyo to be "worse off" than a sun-tanned artist watching another glorious sunset on the beach in Tahiti. (d) is measured by the increases in total output of goods and services less any environmental destruction that occurs in the process of production.

In national income accounting, the two uses of disposable income are

A. Saving and investment. B. Personal income and personal taxes. C. Consumption and investment. D. Saving and consumption.