Assume citizens of Destrahan are complaining that Shell Chemical and Dow Chemical are polluting the environment. Currently, each firm emits 40 tons of pollution per year. Shell Chemical could reduce its pollution at a cost of $500 per ton, and Dow Chemical could reduce its pollution at a cost of $100 per ton. To reduce overall pollution to 40 units, the mayor gives each firm 20 tradable pollution permits. Each permit allows a firm to emit one ton of pollution. Assuming each permit has a market value is $200, what is the cost of reducing pollution to the desired level

When earning simple interest on money you invest, which statement is true? a. as time goes on and your bank account grows, you earn more interest. b. as time goes on and your bank account grows, you earn less interest. c. as time goes on and your bank account grows, you earn the same amount of interest. d. as time goes on and your bank account grows, you stop earning interest.

Investment x offers to pay you $5,700 per year for 9 years, whereas investment y offers to pay you $8,300 per year for 5 years. if the discount rate is 6 percent, what is the present value of these cash flows? (do not round intermediate calculations and round your answers to 2 decimal places, e.g., 32.16.) present value investment x $ investment y $ if the discount rate is 16 percent, what is the present value of these cash flows? (do not round intermediate calculations and round your answers to 2 decimal places, e.g., 32.16.) present value investment x $ investment y

Which of the following best explains why the demand for housing is more flexible than the supply? a. new housing developments are being constructed all the time. b. low interest rates for mortgages make buying a home very affordable. c. the increasing population always drives demand upwards. d. people can move more easily than producers can build new homes.