A monopoly faces an inverse demand curve of P = 100 - 2Q. The marginal cost curve is MC = .5Q. What government price ceiling would represent optimal price regulation?

If velocity does not change and the quantity of money grows at the same rate as does real GDP, then in the long run

A) the real interest rate is less than the nominal interest rate. B) the inflation rate equals zero. C) the nominal interest rate equals zero. D) the inflation rate equals the growth rate of the quantity of money. E) the nominal interest rate is less than the real interest rate.

The Roomba 570 is a robotic vacuum cleaner made and sold by iRobot. It can vacuum 4 rooms on a single battery charge and it costs $10 worth of electricity to charge the Roomba

Lynn is a house cleaner and can vacuum 4 rooms in 1/2 hour with a traditional vacuum. Suppose you want the 4 rooms in your house vacuumed once a week for one year. Ignoring the cost of any electricity Lynn uses, which method is economically efficient if Lynn charges $20 per hour? $30 per hour? A) Lynn if she charges $20 or $30 per hour B) Lynn if she charges $20 per hour and Roomba if Lynn charges $30 per hour C) Roomba if Lynn charges $20 per hour and Lynn if she charges $30 per hour D) Roomba if Lynn charges $20 or $30 per hour