An increase in the amount of human capital labor ________ the short -run aggregate supply curve and ________ the long-run aggregate supply curve.

You choose to get a flu shot each fall and your roommate chooses not to get a flu shot. For your roommate, you getting a flu shot is a

A) positive externality. B) negative externality. C) transactions cost. D) property right.

The above figure shows the U.S. market for replacement cell phone batteries. Area B + area D is the

A) tariff revenue. B) decrease in consumer surplus due to the tariff. C) deadweight loss from tariff. D) increase in producer surplus due to the tariff. E) gain in total surplus due to the tariff.