The typical monopolistically competitive firm always earns an economic profit in the long run, regardless of whether or not it advertises

The table above lists the market shares of the twenty makers of personal computers. The Herfindahl-Hirschman Index for this industry equals

A) 5. B) 250. C) 1250. D) 500.

If the country of Heehee makes the transition from central planning to a market economy in a matter of months, it is an example of the big-bang approach

a. True b. False