Which of the following could be the cross-price elasticity of demand for two goods that are complements?

U.S. tire production involves large social costs from air pollution. How will stronger U.S. environmental regulations requiring firms to reduce their air pollutants affect U.S. tire imports?

a. Stronger U.S. environmental regulations will cause increases in U.S. tire imports. b. Stronger U.S. environmental regulations will cause decreases in U.S. tire imports. c. Stronger U.S. environmental regulations will neither cause increases nor decreases in U.S. tire imports d. Stronger U.S. environmental regulations will cause decreases in U.S. tire imports but not reduce tire producers' emissions of air pollutants.

Which of the following is true of other checkable deposits?

a. They are checking account deposits at commercial banks and do not pay any interest. b. They are accounts at financial institutions that pay interest and give the depositor check-writing privileges. c. They comprise solely of demand deposits at mutual savings banks. d. They are not included in the M1 money supply. e. They are savings deposits that earn interest at savings and loan associations.