Taxes that are designed to discourage consumption of the taxed good are called _____

Suppose you observe that the price of a good increases and that the quantity of this good sold also increases. If only the demand curve or the supply curve shifts this suggests that

A) supply increased over time while demand remained the same. B) supply decreased over time while demand remained the same. C) demand increased over time while supply remained the same. D) demand decreased over time while supply remained the same.

The U.S. government attempts to spur research and development activities through

a. monetary policy. b. interest rate policy. c. export subsidy policy. d. tax policy.