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##### ECO 550 Week 4 chapters 7 and 8

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Question;hapter 7In the deep creek mining company described in this chapter table 7.1 suppose again that labor is the variable input and capital is the fixed input. Specifically, assume that the firm owns a piece of equipment having a 500-bhp rating. A. Complete the following tableLabor input L(#of workersTotal production TPL (=Q)Marginal Product (MPL)Average Product APL12345678910`B. Plot the (i) total product, (ii) marginal product, (iii) average product functions.C. Determine the boundaries of these three stages of production.6. Consider the following short-Run production function (where input,):A. Determine the marginal productB. Determine the average product functionC. Find the value of L that maximizes QD. Find the value of L at which the marginal product function takes on its maximum valueE. Find the value of L at which the average product function takes on its maximum value.8. Based on the production function parameter estimates reported in Table 7.4:A. Which industry (or industries) appears to exhibit decreasing returns to scale? (Ignore the issue of statistical significance.)B. Which industry comes closest to exhibiting constant returns to scale?C. In which will a given percentage increase in capital result in the largest percentage increase in output?D. In what industry will a given percentage increase in production workers result in the largest percentage increase in output?9. Consider the following Cobb- Douglas production function for the bus transportation system in a particular city:Q=?L ^?1 F^?2 K^?3Where L is the labor input in worker hours,F is the fuel input in gallons,K is the capital input in number of buses,Q is the output measured in millions of bus milesSuppose that the parameters (a,? 1,?2,?3) of this model were estimated using annual data for the past 25 years. The following results were obtained:?= 0.0012,?,?,?A. Determine the (i) labor, (ii) fuel, and (iii) capital input production elasticities.B. Suppose that labor input (worker hours) is increased by 2 percent next year (other inputs held constant). Determine the approximate percentage change in output.C. Suppose the capital input (number of buses) is decreased by 3 percent next year (when certain older buses are taken out of service). Assuming that the other inputs are held constant, determine the approximate percentage change in output.D. What type of return to scale appears to characterize this bus transportation system? (Ignore the issue of statistical significance.)E. Discuss some of the methodological and measurement problems one might encounter in using time-series data to estimate the parameters of this model.Chapter 82. Howard Bowen is a large-scale cotton farmer. The land and machinery he owns has a current market value of $4M. Bowen owes his local bank $3M. Last year Bowen sold $5M worth of cotton. His variable operating costs were $4.5M, accounting depreciation was $40,000, although the actual decline in value of Bowen's machinery was $60,000 last year. Bowen paid himself a salary of $50,000, which is not considered part of his variable operating costs. Interest on his bank loan was $400,000. If Bowen worked for another farmer or a local manufacturer, his annual income would be about $30,000. Bowen can invest any funds that would be derived, if the farm were sold to earn 10% annually.(Ignore taxes)A. Compare Bowen's accounting profits.4. From your knowledge of the relationships among the various production functions, complete the following table:QTCFCVCATCAFCAVCMC01251052010.503011040255503603705802956. The Blair Company has three assembly plants located in California, Georgia and New Jersey. Currently the company purchases a major subassembly, which becomes part of the final product, from an outside firm. Blair has decided to manufacture the subassemblies within the company and must now consider whether to rent one centrally located facility, where all the subassemblies would be manufactured or to rent three separate facilities, each located near one of the assembly plants, where each facility would manufacture only the subassemblies needed for the nearby assembly plant. A single, centrally located facility, with a production capacity of 18,000 units per year, would have fixed costs of $900,000 per year, and variable costs of $250 per unit. Three separate, decentralized facilities, with production capacities of 8,000, 6,000 and 4,000 units per year, would have fixed costs of $475,000, $425,000 and $400,000, respectively. Variable costs per unit produced in any of these three, decentralized facilities equal $225 (per unit). The current production rates at the three assembly plants are 6,000, 4,500 and 3,000 units per year, respectively.A. Assuming that the current production rates are maintained at the three assembly plants, which alternative should management selec

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