Elections tend to be closer when one candidate is extremely to the right or left

The slope of an isocost line ________ and equals the negative of ________

A) increases as we move down the line; the ratio of input prices B) is constant; the ratio of input prices C) is constant; the ratio of the marginal products D) decreases as we move down the line; the ratio of the marginal products

Whenever firms in a perfectly competitive market produce the output level where marginal revenue equals marginal cost, we know that the firm is earning an economic profit

a. True b. False Indicate whether the statement is true or false