The theory of short-run economic fluctuations is uncontroversial

Paul the Pizza Man used a new method to streamline pizza assembly that allowed him to make more pizzas and thus make greater revenue. Paul began to earn positive economic profits. In the long run, Paul will

a. continue to earn economic profits b. earn zero economic profits because other pizza places will begin to use his system c. continue to earn economic profits because Paul will get a patent on his new method d. earn negative economic profits because innovators always loose money e. earn zero economic profits because the government does not allow monopolistically competitive firms to earn economic profits

Vicki consumes meatloaf and pizza. To keep her utility constant, you must give her more of one good if you take some of the other away. This information implies that

a. Vicki's marginal rate of substitution must be constant along her indifference curve. b. Vicki's indifference curve must have a negative slope. c. the prices Vicki must pay for meatloaf and pizza are always the same. d. Vicki's marginal utility from each good must be constant along her indifference curve.