At a fair carnival roulette wheel, a player can either win $10, $30, or $80 . Assuming a rational player, how much should the game owner charge the player, to maximize his own profit?

Adopting a common currency implies all of the following, EXCEPT that:

A) each region will lose its monetary autonomy. B) a common interest rate will be set. C) each region will retain its monetary authority. D) a common monetary policy will be set by the central bank.

If a technological advance takes place in the computer industry, then the equilibrium price of a computer will ________ and the equilibrium quantity will ________

A) fall; increase B) fall; decrease C) rise; increase D) rise; decrease