Two firms located along a river generate pollution. The marginal benefit (MB) that each firm earns (in dollars) as a function of the pollution that it generates (profits from an additional unit of pollution) is provided below, where x_i represents the units of pollution generated by firm i. MB1 = 40 – 2x1 MB2 = 10 – x_2/2 If the regulator places a tax on pollution of $6 per unit, what is the total quantity of pollution generated by the two firms? (15 points) The tax in part (b) is a cost-effective way of reducing pollution. What would you need to know about the damages associated with pollution to determine whether the tax is socially efficient (maximizes net social benefits)? (10 points)

A) plot the m1 and m2 money stock in the us from 1990-2015. (hint: you may use the data tools provided by fred.) (b) plot the nominal interest rate from 1960 to 2014. (hint: you can either use the daily interest rates for selected u.s. treasury, private money market and capital market instruments from or the effective federal funds rate fromfred.) (c) the consumer price index (cpi) is a measure of the average change over time in the prices paid by urban consumers for a market basket of consumer goods and services. intuitively, the cpi represents the cost of living or the average price level. plot the cpi from 1960 to 2013.(d) the inflation rate is the yearly percentage change in the average price level. in practice, we usually use the percentage change in the cpi to compute the inflation rate. plot the inflation rate from 1960 to 2013.(e) explain the difference between the ex-ante and ex-post real interest rate. use the fisher equation to compute the ex-post real interest rate. plot the nominal interest rate and the ex-post real interest rate from 1960 to 2013 in the same graph.

Susan is a 5th grade teacher and loves getting up every day and going to work to teach her students. this is an example of a. extrinsic value b. interests c. intrinsic value d. external value

Warren company plans to depreciate a new building using the double declining-balance depreciation method. the building cost $870,000. the estimated residual value of the building is $57,000 and it has an expected useful life of 20 years. assuming the first year's depreciation expense was recorded properly, what would be the amount of depreciation expense for the second year?