3. The Herfindahl-Hirschman index Suppose that three firms make up the entire tire manufacturing industry. One has a 60% market share, and the other two have a 20% market share each. The Herfindahl-Hirschman index of this industry is . Tread Tough, one of the firms with a 20% market share in the tire manufacturing industry, leaves the market. This would cause the Herfindahl-Hirschman index for the industry to . Why is the largest possible value of the Herfindahl-Hirschman index is 10,000

The selling price of houses would be most likely to decrease if there were first a decrease in which of the following? a. new-housing construction. b. mortgage interest rates. c. the unemployment rate. d. construction workers' wages. 2b2t

You are thinking of making your mansion more energy efficient by replacing some of the light bulbs with compact fluorescent bulbs, and insulating part or all of your exterior walls. each compact fluorescent light bulb costs $4 and saves you an average of $2 per year in energy costs, and each square foot of wall insulation costs $1 and saves you an average of $0.20 per year in energy costs.† your mansion has 150 light fittings and 3000 sq ft of uninsulated exterior wall. to impress your friends, you would like to spend as much as possible, but save no more than $750 per year in energy costs (you are proud of your large utility bills). how many compact fluorescent light bulbs and how many square feet of insulation should you purchase? how much will you save in energy costs per year? (if an answer does not exist, enter dne.)

Suppose your rich uncle gave you $50,000, which you plan to use for graduate school. you will make the investment now, you expect to earn an annual return of 6%, and you will make 4 equal annual withdrawals, beginning 1 year from today. under these conditions, how large would each withdrawal be so there would be no funds remaining in the account after the 4th withdraw?