PhD Macroeconomics question

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FINALTAKEHOMEEXAM1.docx

A. Write short notes on

· Elasticities and revenue relation of profit seeking firm

· Opportunity Cost and its policy implication in economic decision making

· Externalities in economic actions

· Fiscal and Monetary policy impacts on GDP

· Property rights and economic development

· Price discrimination behavior and monopoly survival

· Relationship among Interest Rate, Inflation and Employment (labor supply)

B. Numerical problems

B.1. Given: Qd = 600 - 2 P and Qs = 3 P, find the equilibrium quantity and price.

B.2. Price of a French wine falls from $. 600 to $400 per unit. As a result, the demand increases from 120 to 200 bottles. Estimate the price elasticity of demand.

B.3. From the given cost function, C(X) = 8X-X2 find AC and MC functions.

C. Why a firm in the perfectly competitive market structure stay on “Normal Profit” in the long run?

D. What is cost function? Explain the relationship between TFC, TVC and TC with a suitable graphical representation. Give reason why cost functions are derived function.

E. Dr. Smith is a great fan of collecting articles of distinction. Visiting one ancient shop, he is willing to pay up to $100 for a stone craft but he can buy it for $60. He decided to purchase 1,000 units in the store. Calculate the consumer surplus[footnoteRef:1] in this situation. [1: Consumer surplus = (½) x Qd x ΔP Where: Qd = the quantity at equilibrium where supply and demand are equal ΔP = Pmax (the price a consumer is willing to pay) – Pd (the price at equilibrium where supply and demand are equal or actual price consumer can buy) ]

F. An organic Blueberry Jam processing MONOPOLY plant in the North-East region of Wisconsin has a demand function and Cost function are

Q = 50-0.5P and C = 50 +40Q

Estimate the following[footnoteRef:2]: [2: Derive MR and MC first. Equal MR and MC and find value of Q. Put back Q value in demand equation to get price. Then use profit function to estimate total profit. Look at Math revision or Lecture note to apply f.o.c and s.o.c. and interpret.]

· Profit maximizing level of output

· Monopolist unit price for the Organic Jam

· Monopolist Total profit

· Show that F.O.C. and S.O.C. are satisfied

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