Economists most often disagree over positive rather than normative economic issues

The value of a producer's output minus the value of the inputs it purchases from other producers is called the producer's

A) surplus. B) profit. C) value added. D) gross product.

If input prices are constant, a firm with increasing returns to scale can expect

A) costs to double as output doubles. B) costs to more than double as output doubles. C) costs to go up less than double as output doubles. D) to hire more and more labor for a given amount of capital, since marginal product increases. E) to never reach the point where the marginal product of labor is equal to the wage.