Using the above figure, of the prices below, which price enables a perfectly competitive firm to earn the maximum economic profit?

For this question assume that technological progress does not occur. The rate of saving in Canada has generally been greater than the saving rate in the U.S. Given this information, we know that in the long run

A) Canada's growth rate will be greater than the U.S. growth rate. B) investment per worker in Canada will be no different than U.S. investment per worker. C) capital per worker in Canada will be no different than U.S. capital per worker. D) all of the above E) none of the above

The version of aggregate supply that allows for changes in both product prices and resource prices is the:

A. Immediate short-run B. Short run C. Immediate long-run D. Long run