Suppose that research shows that by buying stocks issued by companies whose names begin with the letter G investors can earn above-normal returns in even-numbered years. a. From the perspective of the efficient markets hypothesis, this is further evidence that the hypothesis is correct. b. this would be considered evidence that the hypothesis is incorrect. c. investors must have insider information on these companies. d. purchasers of these stocks must have been speculators.

Costs of production that do not change when output changes. question 17 options: total revenuefixed incometotal costfixed cost

Acompany that makes shopping carts for supermarkets and other stores recently purchased some new equipment that reduces the labor content of the jobs needed to produce the shopping carts. prior to buying the new equipment, the company used 6 workers, who produced an average of 79 carts per hour. workers receive $16 per hour, and machine coast was $49 per hour. with the new equipment, it was possible to transfer one of the workers to another department, and equipment cost increased by $11 per hour while output increased by four carts per hour. a) compute the multifactor productivity (mfp) (labor plus equipment) under the prior to buying the new equipment. the mfp (carts/$) = (round to 4 decimal places). b) compute the productivity changes between the prior to and after buying the new equipment. the productivity growth = % (round to 2 decimal places)

Which of the following will not cause the consumption schedule to shift? a) a sharp increase in the amount of wealth held by households b) a change in consumer incomes c) the expectation of a recession d) a growing expectation that consumer durables will be in short supply