_____ is the reward savers earn for deferring consumption

Empirical evidence indicates that imposing taxes on polluting emissions by firms

a. has no effect on the amount of pollution emitted. b. does not give the government leeway to regulate more dangerous emissions differently than less dangerous emissions. c. does reduce the amount of pollution emitted. d. discourages firms from investing in new methods of pollution abatement.

The basic truth that underlies the study of economics is the fact that we all face:

A. Death B. Taxes C. Risk D. Scarcity