The average tax rate is the rate at which an additional dollar earned is taxed

Suppose the equilibrium price of movie tickets is $10. If the supply curve for movies shifts ________, the equilibrium price will ________

A) rightward; decrease B) leftward; decrease C) rightward; increase D) leftward; not change E) rightward; not change

If an investor holds two risky assets with a perfect negative correlation, then risk

A) falls to zero. B) is increased. C) is unaffected. D) is reduced by 50 percent.