The objective of speculators is to buy at one price and sell at a lower price

The International Nickel Company of Canada is often cited as an example of monopoly. What was the source of the barrier to entry that gave this firm monopoly power?

A) There were important network externalities in the production of nickel. B) Economies of scale resulted in the company becoming a natural monopoly. C) It was a public enterprise; therefore, the Canadian government blocked entry into the market for nickel. D) control of a key resource

U.S. net export spending rises when

A) the inflation rate is higher in the United States relative to other countries. B) the value of the U.S. dollar increases relative to other currencies. C) the price level in the United States rises relative to the price level in other countries. D) the growth rate of U.S. GDP is slower than the growth rate of GDP in other countries.