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Prepared by
Department of Economics
University of Macau
1
University of Macau
Faculty of Social Sciences and Humanities
Department of Economics
Admission Test on Master Programme
Part A – Macroeconomics
1. Please use an IS-LM model to derive the aggregate demand curve
graphically. Explain you answer briefly.
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Prepared by
Department of Economics
University of Macau
2
Part B – Mathematics and Econometrics
1. For function ),( 21 xxfz = , what is the partial derivative of z with respect
to 2x ? (Write down the math formula and give an intuitive interpretation).
Suppose that )ln( 21 αα xxz += , calculate
1x
z
∂
∂
.
2. In a simple regression about the sales y and advertise spending x for 87
companies, we get:
25.0
)85.0(
11.133.1 2 =+= Rxy)
(Number in the parenthesis is the standard error)
From the regression, is there evidence that advertise spending can increase
the sale? Why?
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Prepared by
Department of Economics
University of Macau
3
Part C – Microeconomics
Section A. Multiple-Choices Questions
1. Colette consumes goods x and y. Her indifference curves are described by
the formula y = k / (x+7). Higher values of k correspond to better indifference
curves.
A. Colette likes good y and hates good x.
B. Colette prefers bundle (12, 16) to bundle (16, 12).
C. Colette prefers bundle (8, 5) to bundle (5, 8).
D. Colette likes good x and hates good y.
E. More than one of the above statements are true.
2. Georgina consumes only grapefruits and pineapples. Her utility function is
U(x, y) = x2y8 , where x is the number of grapefruits consumed and y is the
number of pineapples consumed. Georgina’s income is $105, and the prices
of grapefruits and pineapples are $1 and $3, respectively. How many
grapefruits will she consume?
A. 10.5
B. 7
C. 63
D. 21
E. None of the above.
3. Cindy consumes goods x and y. Her demand for x is given by x(px , m) =
0.05m – 5.15px. Now her income is $419, the price of x is $3, and the price of
y is $1. If the price of x rises to $4 and if we denote the income effect on her
demand for x by DI and the substitution effect on her demand for x by DS,
then
A. DI = -0.28 and DS = -0.52.
B. DI = -0.28 and DS = -4.88.
C. DI = -0.52 and DS = -0.52.
D. DI = 0 and DS = -2.00.
E. None of the above.
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Prepared by
Department of Economics
University of Macau
4
Section B. Short Questions
Write your answers on the space below.
1. Let ( ) ( )21212 ,,,: xxfxxf aℜ→ℜ+ be a continuous and differentiable
production function. Suppose that 0/ 2 ≠∂∂ xf Derive the following formula for
the technical rate of substitution (TRS) (or marginal rate of technical
substitution (MRTS)):
( )
( ) 221
121
1
2
/,
/,
xxxf
xxxf
dx
dx
TRS
∂∂
∂∂
−=≡
Prepared by
Department of Economics
University of Macau
Applicants are required to have a written test on microeconomics,
macroeconomics, mathematics and econometrics. The following book titles
are provided as references:
Microeconomics
Applicants are expected to have preliminary knowledge on intermediate
microeconomics. More preparation on an advanced undergraduate level will
also be helpful.
Intermediate Microeconomics:
• Varian, Hal R., Intermediate Microeconomics: A Modern Approach, 7th
Ed., New York: Norton, 2006 (including the mathematical appendices).
Advanced undergraduate Microeconoimcs:
• Jehle, Geoffrey A., and Philip J. Reny, Advanced Microeconomic Theory,
2nd Ed., Boston: Addison Wesley, 2001.
Macroeconomics
• Mankiw, Gregory. Macroeconomics, 6th ed., Worth Publisher, 2006.
• Dornbusch, Rudiger. Macroeconomics, 9th ed., McGraw-Hill, 2004.
Mathematics
• Chiang, Alpha, and Wainwright, Kevin. Fundamental methods of
mathematical economics, 4th ed., McGraw-Hill, 2005.
Econometrics
• Wooldridge, Jeffrey M. Introductory econometrics: a modern approach,
3rd ed., Thomson, 2006.
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