When budget deficits take place in a high-employment economy, the effect is an increase in capital stock

What is an efficient way to study for an economics exam?

A) Attend every lecture and take copious notes. B) Read the assigned material once before each class and once after. C) Form study sessions with others in class. D) Put off everything and instead cram the night before the exam. E) Any of the above might be efficient, depending on one's perceived costs and benefits.

If a duopolists' collusive price-fixing game can be played repeatedly,

A) one possible equilibrium is that both firms cheat. B) players can signal their willingness to cooperate. C) players can punish cheaters in the following game. D) All of the above answers are correct.