Now, about ____ percent of American married-couple families have two or more wage earners

The growth rate of potential GDP depends on

a. the rate of technical progress. b. the growth rate of the capital stock. c. the growth rate of the labor force. d. all of the above.

Social regulation differs from industrial regulation in that:

A. social regulation applies to virtually all industries, while industrial regulation applies to restricted number. B. industrial regulation is involved in the details of the production process, while social regulation is not. C. social regulation has expanded less rapidly in recent years than has industrial regulation. D. industrial regulation regulates products whereas social regulation regulates prices.