Suppose that there are 50 firms in a monopolistically competitive industry in country A and 50 firms in the same monopolistically competitive industry in country B. If country A and country B engage in international trade, we expect that the total number of firms in this industry:

Uncertainty costs arise from inflation because inflation makes long-term planning ________ so people respond by ________ investment

A) less difficult; not changing B) less difficult; increasing C) more difficult; increasing D) more difficult; decreasing E) more difficult; not changing

If the price of Pepsi-Cola increases from 40 cents to 50 cents per can and the quantity demanded decreases from 100 cans to 50 cans, then, according to the midpoint formula, the value of price elasticity of demand for Pepsi-Cola is

a. -0.5 b. -0.25 c. -1 d. -3 e. -2