If marginal cost is above the average variable cost, then average variable cost is decreasing

In 2015, health care's share of gross domestic product in the United States

A) had declined to only 6.5 percent. B) had returned to its 1995 level. C) was almost than three times as high as it was in 1965. D) reached a level of 75 percent.

The savings rate ________ over the long run but ________ over the short run

A) is constant as Keynes assumed; varies as Friedman assumed B) is constant as Friedman assumed; varies as Keynes assumed C) is constant as Friedman assumed; varies as Friedman assumed D) varies as Keynes assumed; varies as Keynes assumed