Alex works in his own home as a homemaker and full-time caretaker of his children. Officially, he is

The costs in time and other resources that parties incur in the process of facilitating an exchange of goods and services are called

A) implicit costs. B) explicit costs. C) enforcement costs. D) transactions costs.

All other things remaining the same, a large increase in the net number of Mexican immigrant workers in the United States from Mexico causes:

a. U.S. GNP to be greater than the U.S. GDP. b. U.S. GNP to be less than the U.S. GDP. c. U.S. gross private domestic investment to rise. d. U.S. GNP to be greater than the U.S. GDP because U.S. gross private domestic investment rises