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Problem set inCost Benefit Analysis all work and calculation should be in excel sheet K4020 Problem Set 2 Due in class on 10/13/2016 Please submit

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Problem set inCost Benefit Analysis all work and calculation should be in excel sheet

image text in transcribed K4020 Problem Set 2 Due in class on 10/13/2016 Please submit your response in groups. 1. A public health department is considering five alternative programs to encourage parents to have their preschool children vaccinated against a communicable disease. At most one program will be adopted. The following table shows the cost and number of vaccinations predicted for each program. Program Program Cost Vaccinations A $24, 000 2, 000 B $33, 000 3, 000 C $72, 000 7, 500 D $110, 000 11, 000 E $200, 000 18, 000 (a) Compute the average cost per vaccination for each program. (b) Ignoring issues of scale, which program is most cost-effective? (c) Assuming the public health department wishes to vaccinate at least 10,000 children, which program is most cost-effective? (d) If the health department believes that each vaccination delivers social benefits of $15, which program should it adopt? (HINT: Compute net aggregate benefits for each program) 2. A person's demand for organic cotton shirts is given by the following equation: q = 4 0.25p + 0.0002I where, q is the quantity demanded per year at price p when the person's annual income is I. Assume initially that the person's income is $60,000. (a) At what price will demand fall to zero? (This is sometimes called the choke price because it is the price that chokes off demand.) (b) If the market price for the shirts is $24, how many will be demanded? (c) At a price of $24, what is the price elasticity of demand for organic cotton shirts? (d) At a price of $24, what is the consumer surplus? (e) If price falls to $20, how much consumer surplus is gained? (f) If income were $90,000, what would be the consumer surplus gain from a price drop from $24 to $20? (g) Does your answer to part (f) above suggest that willingness to pay depends on income? If so, how does willingness to pay depend on income? If not, why does it not depend on income? 3. A country imports 1.5 billion barrels of crude oil per year and domestically produces another 4.5 billion barrels of crude oil per year. The world price of crude oil is $93 per barrel. Assuming linear demand and supply curves, economists estimate the price elasticity of domestic supply to be 0.25 and the price elasticity of domestic demand to be 0.10 at the current equilibrium. (a) Consider the changes in social surplus that would result from imposition of a $30 per barrel import fee on crude oil that would involve annual administrative costs of $600 million. Assume that the world price will not change as a result of the country imposing the import fee, but that the domestic price will increase by $30 per barrel. Also assume that only producers, consumers, and taxpayers within the country have standing. Determine the quantity consumed, the quantity produced domestically, and the quantity imported after the imposition of the import fee. Then estimate the annual social net benefits of the import fee. (b) Economists have estimated that the marginal excess burden of taxation in the country is 0.25. Re-estimate the social net benefits assuming that 20 percent of the increase in producer surplus is realized as tax revenue under the existing tax system. In answering this question, assume that increases in tax revenues less the cost of administrating the import fee are used to reduce domestic taxes. 4. Suppose you have been asked to advise the Energy Ministry of Mexico on their reform of the electricity sector. The Ministry wants to impose a tax per unit of electricity generated by heavy fuel oil (HFO) generation plants. The amount of the tax is meant to offset the damage incurred by the Mexican population from respiratory health diseases and decreased crop yields resulting from SO2 emissions which are a by-product of HFO power plants. Suppose demand (in MWh) is given by Qd = 140 P where P is the price in pesos per MWh and Qd is the quantity demanded. The supply of electricity (in MWh) from HFO plants is given by Qs = 4P 200 where P is the price in pesos per MWh and Qs is the quantity supplied. Suppose further that the damage caused by the SO2 emissions is given by 0.125Q2 pesos where Q is electricity generated in MWh. (a) (7 points) In the absence of a tax for SO2 emissions, what will be the equilibrium price and quantity of HFO-generated electricity in the market? (b) (6 points) What is the socially optimal amount of electricity production from HFO power plants, taking into account the SO2 emissions damage? (Ignore damage from other emissions such as NOx, particulate matter, carbon etc. Note that the marginal damage from the SO2 emissions is given by the derivative of 0.125Q2 with respect to electricty generated, i.e. 0.25Q.) (c) (4 points) Suppose the Ministry is considering a tax of $T per MWh generated by HFO plants. Find the level of the tax, T , that ensures that the socially optimal amount of HFO-generated power will be produced in competitive equilibrium. (d) (4 points) Compute the deadweight loss which is eliminated by imposition of the tax. (e) (4 points) In general, do all taxes eliminate deadweight losses? If yes, state why. If not, state why not. 5. The Department of Transportation plans to build a temporary bridge to reduce travel time during the three years it will take to renovate the Pulaski Skyway, an important bridge for commuters. The temporary bridge can be put up in a few weeks at a cost of $48 million. At the end of three years, the bridge would be decommissioned and the steel would be sold for scrap. The real net cost of decommissioning would be $3 million, after accounting for scrap sales. Based on estimated time savings and wage rates, fuel savings, and reductions in risks of accidents, department analysts predict that the benefits in real dollars would be $15,900,000 during the first year, $18,900,000 during the second year, and $19,000,000 during the third year. Departmental regulations require use of a real discount rate of 4 percent. (a) Calculate the net present value of the temporary bridge assuming that the benefits are realized at the end of each of the three years. (b) Calculate the net present value of the temporary bridge assuming that the benefits are realized at the beginning of each of the three years. (c) Calculate the net present value of the temporary bridge assuming that the benefits are realized in the middle of each of the three years. (d) Does it make sense for the Department of Transportation to build the temporary bridge? 6. The environmental protection agency of a county would like to preserve a piece of land as a wilderness area. The current owner has offered to lease the land to the county for 30 years in return for a lump-sum payment of $1.75 million, which would be paid at the beginning of the 30-year period. The agency has estimated that the land would generate $102,000 per year in benefits to hunters, bird watchers, and hikers. Assume that the lease price represents the social opportunity cost of the land and that the appropriate real discount rate is 5 percent. (a) Assuming that the yearly benefits, which are measured in real dollars, accrue at the end of each of the 30 years, calculate the net benefits of leasing the land. (b) Some analysts in the agency argue that the annual real benefits are likely to grow at a rate of 2 percent per year due to increasing population and county income. Recalculate the net benefits assuming that they are correct. K4020 Problem Set 2 Page 2 of 3 7. Imagine that the current owner of the land in the previous exercise was willing to sell the land for $2.2 million. Assuming this amount equaled the social opportunity cost of the land, calculate the net benefits if the county were to purchase the land as a permanent wildlife refuge. In making these calculations, first assume a zero annual growth rate in the $102,000 of annual real benefits; then assume that these benefits grow at a rate of 2 percent per year. K4020 Problem Set 2 Page 3 of 3

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