The U.S. Department of Agriculture and Ernst Engel have confirmed, separately, that there is an inverse relationship between income changes and food consumption

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

Indicate whether the statement is true or false

When the production of a good generates external costs, a firm's private supply curve will be

A. vertical. B. horizontal. C. to the left of the social supply curve. D. to the right of the social supply curve.