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: Managerial Economics Essay

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Appalachian Coal Mining believes that it can increase labor productivity and, there- fore, net revenue by reducing air pollution in its mines. It estimates that the marginal cost function for reducing pollution by installing additional capital equipment is MC = 40P where P represents a reduction of one unit of pollution in the mines. It also feels that for every unit of pollution reduction the marginal increase in revenue (MR) is MR =1,000 =10P. How much pollution reduction should Appalachian Coal Mining undertake? The installation of additional capital equipment will reduce pollution and increase the labor productivity..But look at the additional cost...It is not offsetting the benefit So fix the level of pollution reduction in an …show more content…

3 guards Number of Security Guards Number of radios stolen per week 0 50 (200 × 0) + (50×50)=2500 1 30 (200 x 1) + (50 x 30) = 1700 2 20 (200 x 2) + (50 x 20) = 1400 3 14 (200 x 3) + (50x10)= 814 Chapter 4 The director of marketing at Vanguard Corporation believes the sales of the company’s Bright Side Laundry detergent (S) are related to Vanguard’s own advertising expenditure (A), as well as the combined advertising expenditures of its three biggest rival detergents (R). The marketing director collects 36 weekly observations on S, A, and R to estimate the following multiple regression equation: S = a + bA + cR Where S, A, R are measured in dollars per week. Vanguard’s marketing director is comfortable using parameter estimates that are statistically significant at the 10 percent level or better. a) What sign does the marketing director expect a, b, and c to have? The director would expect his own advertising to have a positive effect and the competitor’s advertising to have a negative effect. He should expect some level of brand loyalty, but his advertising should have a positive effect. b)Interpret the coefficients a, b, and c? S = a + bA + cR Here “a” will be the intercept parameter and b, along with c, will be the slope parameter. Vanguard’s own advertising would be a positive effort and the competitor’s would be negative. END The regression output from the computer is as follows: Dependent

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