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Unformatted text preview: ECONOMICS 201 MIDTERM REVIEW Fall, 2007 V.1 Geoffrey Jehle Multiple choice questions on the midterm exam will be very similar to these review questions. If you can do all of these, you are on top of all your problem sets, and you know what’s going on in class you should be in good shape. 2 Multiple Choice 5 10 15 20 X 10 20 30 40 50 60 70 Y Figure 1: 1. A consumer’s budget constraint is depicted in Figure 1. If the price of X is $1 per unit, the price of Y must be a. $7/2 b. $7/2 c. $70 d. $2/7 2. The price of X declines and Kevin’s total spending on X decreases. The ownprice elasticity of Kevin’s demand for X is a. equal to one in absolute value. b. greater than one in absolute value. c. infinitely large. d. less than one in absolute value. 3. Arjun consumes goods X and Y , and his utility function is u ( x,y ) = (3 / 10) x + (1 / 3) y . Which of the indifference maps in Figure 2 represents his preferences? 4. Casey’s utility function is u ( x,y ) = max( x,y ). He maximizes utility subject to a budget constraint. The price of X is $8 and the price of Y is $7. If Casey’s income is $280, how many units of X and Y will he buy? a. no units of X and 40 units of Y . b. 56/3 units of X and 56/3 units of Y . c. no units of Y and 35 units of X . d. no units of X and no units of Y . Multiple Choice 3 1 2 3 4 5 6 7 8 9 10 X 1 2 3 4 5 6 7 8 9 10 Y Minus c Minus 1 2 3 4 5 6 7 8 9 10 X 1 2 3 4 5 6 7 8 9 10 Y Minus d Minus 1 2 3 4 5 6 7 8 9 10 X 1 2 3 4 5 6 7 8 9 10 Y Minus a Minus 1 2 3 4 5 6 7 8 9 10 X 1 2 3 4 5 6 7 8 9 10 Y Minus b Minus Figure 2: 5. Arjun buys only X and Y , and the ownprice elasticity of his demand for X is equal to1/2. If his income elasticity of demand for X is equal to 3/4, what is his crosselasticity of demand for X with respect to the price of Y ? a. 5/4 b. 1/4 c. 5/4 d. 1/4 6. Asya’s utility function is u ( x,y ) = min(6 x, 5 y ). She maximizes her utility subject to a budget constraint. The price of X is the same as the price of Y . If the price of X falls and the price of Y and her income remain constant, then her consumption of Y a. will remain unchanged. b. could increase or decrease depending on her income. c. will decrease. d. will increase. 4 Multiple Choice 7. If she spends all her income, Rachel can just afford 8 units of X and 15 units of Y per week. She could instead use her entire budget to buy 16 units of X and 6 units of Y per week. The price of X is 3 dollars per unit. What is the price of Y ? a. $3/8 b. $16/3 c. $20/3 d. $8/3 8. If she spends all her income, Lauren can just afford 4 units of X and 14 units of Y per week. She could instead use her entire budget to buy 14 units of X and 9 units of Y per week. The price of X is 2 dollars per unit. What is Lauren’s nominal income?...
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This note was uploaded on 04/26/2010 for the course ECON 101 taught by Professor Staff during the Spring '08 term at Vassar.
 Spring '08
 Staff
 Economics, Microeconomics

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