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A new highway is to be constructed. Design A calls for a concrete pavement costing $90 per foot with a 20-year life; two paved ditches costing $3 per foot each; and three box culverts every mile, each costing $9,000 and having a 20-year life. Annual maintenance will cost $1,800 per mile; the culverts must be cleaned every five years at a cost of $450 each per mile.
Design B calls for a bituminous pavement costing $45 per foot with a 10-year life; two sodded ditches costing $1.50 per foot each; and three pipe culverts every mile, each costing $2,250 and having a 10-year life. The replacement culverts will cost $2,400 each. Annual maintenance will cost $2,700 per mile; the culverts must be cleaned yearly at a cost of $225 each per mile; and the annual ditch maintenance will cost $1.50 per foot per ditch.
Compare the two designs on the basis of equivalent worth per mile for a 20-year period. Find the most economical design on the basis of PW if the MARR is 6% per year.
Suppose a Bertrand oligopoly market structure consists of 8 firms and their TC = 45,000=200Q and Q=150-P/4. find the equilibrium level of output. determine the equilibrium market price.
q1. for handling a crisis of epic proportion hurricane flood blizzard forest fire and so forth which economic system is
Unions in developed nations often oppose imports from low-wage countries and advocate trade barriers to protect jobs from what they often characterize as “unfair” import competition. Is such competition “unfair”? Do you think that this argument is in..
In response to the terrorist attacks of September 11, 2001, airline security screening increased dramatically. As a result, the travel time of airline passengers has increased substantially. Would it make economic sense to devote enough resources to ..
Felix Santos, Carlos Garcia, and Jose A. Valdes Prieto were stock persons for Cuba Tropical, Inc., a supermarket supplier. They regularly worked over 40 hours per week, but they were not paid overtime. He was required to sign certain documents for th..
What are the strength of the neoclassical models of labor supply and labor demand. What are the weakness of the neoclassical models of labor supply and labor demand.
Suppose the economy is at a short−run equilibrium GDP that lies above potential GDP. Which of the following will occur because of the automatic mechanism adjusting the economy back to potential? GDP?
Classify each of the following government expenditures as either a transfer payment or a purchase of goods and services. Which ones clearly tend to decrease the inequality of income distribution?
The demand for money in a country is given by Md = 10,000 - 10,000r + where Md is money demand in dollars, r is the interest rate (a 10 percent interest rate means r = 0.1), and is national income. Suppose the money supply (Ms) is set by the central ..
George purchased a $10,000 bond that pays a nominal interest rate of 8 percent per year. George's marginal income tax rate is 28 percent. Over the last year, inflation was 3 percent. Find George's before-tax real interest rate and his after-tax real ..
A major concern is a lack of funds for marketing. As such, Break-C will only be distributed in major metropolitan areas that account for 65% of U.S. breakfast drink market volume. Print ads will carry a coupon entitling consumers to receive $.20 off ..
A small consulting firm is only interested in hiring College graduates (denoted by S), but it does not know how many it should hire in order to be profit maximizing. Assume there is a competitive wage of $20 per hour and the production function is F(..
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