If you buy a put option on Treasury futures at 115, and at expiration the market price is 110, the ________ will ________ exercised

If more firms enter a market that initially had 20 firms in it, then the Herfindahl-Hirschman Index will ________

A) increase B) decrease C) not change D) change in an unpredictable direction

Economic rent serves

A) a descriptive function by making some wealthier than others, but serves no allocative function. B) an allocative function by guiding available supplies to the most efficient use. C) only to make the rich richer and the poor poorer. D) no useful function in a modern economy.