For the past couple of decades, approximately how much trash per person per day has been generated in the United States?

A firm whose production function displays increasing returns to scale will have a total cost curve that is:

a. a straight line through the origin. b. a curve with a positive and continually decreasing slope. c. a curve with a positive and continually increasing slope. d. a curve with a negative and continually decreasing slope.

For a monopolistically competitive firm, which of the following is ensured by product differentiation?

a. Long-run profit b. Market power c. Economies of scale d. Increasing returns to scale