Since the 1870's, the decade with the slowest average annual percent growth rate in labor productivity was the 1970's

People hold money as an asset rather than other assets because

A) it holds its value. B) there is no cost to holding money as an asset. C) it grows in value. D) it is highly liquid.

The figure shows the market for college education. The efficient number of students is

A) less than 4 million. B) more than 4 million and less than 8 million. C) 4 million. D) 8 million. E) more than 8 million.