Guia de ejercicios
End of Chapter Exercises: Solutions
Chapter 1
1. The Casino has given you $100 worth of complimentary chips which must be wagered this evening. There are two tables – roulette and blackjack. The expected value of $100 bet on roulette is $83, and the expected value of $100 bet on blackjack is $86. What is:
(i) the opportunity cost of betting the chips on roulette?
(ii) the opportunity cost of betting the chips on blackjack?
Answer:
(i) expected opportunity cost of $86
(ii) expected opportunity cost of $83
2. Suppose you have been offered a choice of two part-time jobs: 10 hours a week stacking shelves at the supermarket for $10 dollars an hour; or 12 hours a week working in the bar of the local hotel for $8 per hour plus a free case of beer once a week. Assuming that you will take one and only one of the jobs, what is:
(i) the opportunity cost of taking the supermarket job?
(ii) the opportunity cost of taking the hotel job?
Answer:
(i) $96 plus a case of beer
(ii) $100 plus 2 hours of leisure
3. A foreign firm is considering a project which has present values of benefits and costs, at market prices, of $100 and $60 respectively. If the project goes ahead, tax of $20 will be paid to the host country, and pollution costing the host country $10 will occur. Assuming that the owners of the foreign firm are not part of the referent group, what are the net present values generated by:
(i) the project benefit-cost analysis;
(ii) the private benefit-cost analysis;
(iii) the efficiency benefit-cost analysis;
(iv) the referent group benefit-cost analysis?
Answer:
(i) $40
(ii) $20
(iii) $30
(iv) $10
4. Suppose that the economy consists of three individuals, A, B, and C, and that there are three projects being considered. The net benefits, measured in dollars, received by the three individuals from each of the three projects are reported in the following Table:
Individual Project 1 2 3
A -10 +20 +5
B +5 +1 -
Chapter 1
1. The Casino has given you $100 worth of complimentary chips which must be wagered this evening. There are two tables – roulette and blackjack. The expected value of $100 bet on roulette is $83, and the expected value of $100 bet on blackjack is $86. What is:
(i) the opportunity cost of betting the chips on roulette?
(ii) the opportunity cost of betting the chips on blackjack?
Answer:
(i) expected opportunity cost of $86
(ii) expected opportunity cost of $83
2. Suppose you have been offered a choice of two part-time jobs: 10 hours a week stacking shelves at the supermarket for $10 dollars an hour; or 12 hours a week working in the bar of the local hotel for $8 per hour plus a free case of beer once a week. Assuming that you will take one and only one of the jobs, what is:
(i) the opportunity cost of taking the supermarket job?
(ii) the opportunity cost of taking the hotel job?
Answer:
(i) $96 plus a case of beer
(ii) $100 plus 2 hours of leisure
3. A foreign firm is considering a project which has present values of benefits and costs, at market prices, of $100 and $60 respectively. If the project goes ahead, tax of $20 will be paid to the host country, and pollution costing the host country $10 will occur. Assuming that the owners of the foreign firm are not part of the referent group, what are the net present values generated by:
(i) the project benefit-cost analysis;
(ii) the private benefit-cost analysis;
(iii) the efficiency benefit-cost analysis;
(iv) the referent group benefit-cost analysis?
Answer:
(i) $40
(ii) $20
(iii) $30
(iv) $10
4. Suppose that the economy consists of three individuals, A, B, and C, and that there are three projects being considered. The net benefits, measured in dollars, received by the three individuals from each of the three projects are reported in the following Table:
Individual Project 1 2 3
A -10 +20 +5
B +5 +1 -