The above figure shows the market for hamburger. Which figure shows the effect of an announcement by the U.S. Food and Drug Administration (FDA)that eating hamburger causes early death?

Which of the following is likely to reduce the total efficiency units of labor in an economy?

A) A decrease in the price of capital B) A recession that lowers aggregate demand C) An increase in the price level D) An earthquake that kills several people

Saving by households

A) decreases when the real interest rate rises. B) increases when the real interest rate rises. C) increases when the real interest rate falls. D) is unaffected by the real interest rate.