Answers: Assignment 7

Econ. 103, Fall 2002, Prof. Nancy Folbre

  

Assignment 7: Due in discussion section the week of November 25. From Ch. 12, # 1, # 3. From Ch. 13, #2, #7. Short thought piece: Many of the jobs that women choose to enter pay less than the jobs than men choose to enter (same pattern applies to choice of college majors). What explains these choices? Is this pattern likely to change?

Chapter 12

1a. False. The information imparted by the expense of the advertisement, not the message itself, is the more reliable signal of high quality.

1b. True. because charging non-buyers for advice is often impractical, the market generally provides less than the socially optimal amount of retail service.

1c. False. The best-attired lawyer will not ALWAYS be the best lawyer. Take this as a cue only if you have no more reliable information.

1d. True. The benefit of searching in a large city is greater, because there is a greater range of potential spouses to choose from.

3. Carlos will hire the realtor, because he will sell the house for $250,000 and pay the realtor $12,500, for a net price of $237,500, which is well above Whitney's $140,000. Without the realtor, total economic surplus would have been only $20,000 ($10,000 each to Whitney and Carlos). But with the realtor, total surplus is $107,500 to Carlos, $50,000 to the buyer, and $10,500 to the realtor (his $12,500 commission minus his $2,000 opportunity cost of negotiating the transaction).

Chapter 13

2a. After deducting the $5 cost of the fabric, the company recieves $30 from the sale of each pair of jeans. Since the market wage is $250 a week, it is not worthwhile to hire the 5th worker, whose value of marginal product is only $240 per week. The firm hires 4 workers and produces 72 pairs of jeans per week.

2b. It leaves Stone's decision unaffected, since the equilibrium wage is higher than the minimum wage.

2c. This time, the union wage is higher than the equilibrium wage. Stone will no longer hire the fourth worker.

2d. Stone will now hire a fifth worker.

7. The present value of the cost of law school is $20,000 [1 + (1/1.2) + 1/(1.2)2 ], which is equal to about $55,555. Since that value is more than the $50,000 increase in the present value of lifetime earnings, Stefano should not go to law school.