PRICES AND MARKETS Core Course PUSHAN DUTT Date: 5th March, 2007 Time: 9am – 12noon
Duration of the exam: 3 hours Closed-book exam (two A4 sheets allowed). You may NOT use a computer or a PDA Your answers must be in English Write all answers in a separate booklet, not on this question paper. At the end of the exam you can find blank pages as “scratch paper” for calculations. This exam is worth 200 points (you get an endowment of 5 points for showing up) and you have 3 hours to complete the test. Point values of each question are noted in each section or beside the question. Questions are not equally valuable so time management is important! Answer ALL questions. Partial credit will be given for partially correct answers. However, points may be deducted for incorrect statements or illegible (difficult to read) answers. To obtain partial credit, show your work. Good Luck!
In case of doubt on an exam question, participants will state their assumptions on the exam paper. Professors are not allowed to answer questions from the amphitheatres.
Part I: Multiple Choice (Do NOT answer the questions on the question paper). Each question is worth 6 points.
P 100
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Q 500 1. The figure above shows the demand curve for crude oil. If the market price is $20 a barrel, what is the price elasticity of demand? a. 4 b. 0.2 c. 5 d. 0.25 2. Which of the following conditions must hold in an equilibrium of a competitive market where the government imposes a per-unit tax on a good? a. The quantity sold and the price paid by the buyers must lie on the demand curve. b. The quantity sold and the price received by the sellers must lie on the supply curve. c. The difference between the price the buyers pay and the price the sellers receive must equal the tax. d. All of the above 3. Which of the following pairs is most likely to be an example of substitute goods? a. Laptop computers and Desktop computers b. Computers and Software c.