Who controls a sole proprietorship?

Economic experience since 1973 indicate that, under floating exchange rates

A) large and persistent departures from external balance were not prevented. B) large and persistent departures from external balance were prevented. C) changes in exchange rates failed to act as automatic stabilizers. D) reduced monetary policy autonomy. E) monetary policy autonomy was protected.

If there was an increase in the excise tax imposed on guitar suppliers, what would be the effect on the equilibrium price and quantity of guitars?

a. Price increases; quantity decreases b. Price decreases; quantity decreases c. Price increases; quantity increases d. Price decreases; quantity increases