As more Big Macs are consumed each day, the marginal utility that a person gets from each additional Big Mac:

According to the efficient markets hypothesis, purchasing the reports of financial analysts

A) is likely to increase one's returns by an average of 10%. B) is likely to increase one's returns by about 3 to 5%. C) is not likely to be an effective strategy for increasing financial returns. D) is likely to increase one's returns by an average of about 2 to 3%.

Which of the following situations is NOT possible?

A) SAC and LAC are both increasing for some output levels. B) SAC is increasing but LAC is decreasing for some output levels. C) SAC is decreasing but LAC is increasing for some output levels. D) SAC and LAC are both decreasing for some output levels. E) All of the above are possible.