Keynesian theory emphasizes

Sam McGarrity inherited $500,000 upon his favorite aunt's death. After this event it was observed by the local butcher that Sam was purchasing more steaks than in the past even though the butcher's advertising had provided no new information about his steaks in the past year. Most likely,

a. the relative cost of the butcher's steaks decreased b. the relative cost of the butcher's steaks increased c. Sam had seen industry ads about the benefits of red meat d. Sam's indifference map shifted e. Sam's income increased

A perfectly competitive firm and a monopolistically competitive firm are similar in each of the following respects except

a. each has many buyers and sellers. b. firms sell homogeneous products in both markets. c. in having perfect information. d. for freedom of exit and entry.