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Exam Date: 05-Oct-2020
Exam Time: 09:00-12:00
Examination: 1. Course Code - Ph.D.
2. Field of Study - INTERNATIONAL TRADE AND DEVELOPMENT (ITDH)
SECTION 1 - SECTION 1
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Question No.1 (Question Id - 13)
Consider a model with core inflation, pt = p* + T[Yt- Yf ] where pt is period t inflation, p* is core inflation, Yt is period t output and Yf is full employment output. If core inflation is set at the previous (t - 1) period's inflation, then:
(A) When unemployment changes from 0 to a positive number, inflation becomes negative.
(B) When unemployment changes from 0 to a positive number, inflation falls but may be positive.
(C) The relation between unemployment and inflation definitely becomes positive.
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(D) Output always remains at full employment output.
Question No.2 (Question Id - 10)
Consider the following system of 2 differential equations:
dx/dt = ax - ßxy
dy/dt = dxy – ?y
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Let V denote a constant. Then the solution to this system is:
(A) V = dx - ?lnx + ßy - alny
(B) V = dxy - ? + ßxy - a
(C) V = dx - ? + ßy - a
(D) V = dx - ?ex + ßy - aey
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Question No.3 (Question Id - 17)
Let X and Y be random variables with joint probability density function f(x,y) = x + y, where X in [0, 1] and Y in [0, 1]. Then the covariance of X and Y is:
(A) -1/3
(B) -1/21
(C) -7/144
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(D) -1/144
Case Study - 4 to 6 (Question Id - 48)
Suppose you want to examine if fertility rates change overtime. Consider a regression of the number of children a woman has, on the mother's characteristics such as age and education. You have data for years 2005, 2010 and 2015 and therefore include year dummies to check for changes over time. Consider the following models:
Model I: Children = ß0 + ß1 age + ß2 age2 + ß3 education + ß4 year2010 + ß5 year2015 + e1;
Model II: Children = ?0 + ?1 age + ?2 age2 + ?3 education + ?4 year2010 + ?5 year2015 + ?6 education*year2010 + ?7 education*year2015 + e2
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Question No.4 (Question Id - 49)
Refer to the previous question. Assume that model II above satisfies the assumptions of the classical regression model. To test whether the effect of education for a woman is the same in 2010 and 2015, the Null hypothesis is:
(A) ?6 = ?7
Question No.5 (Question Id - 50)
Refer to the previous question. Assume model I satisfies the classical regression model. To test that the effect of age on the number of children is constant, the Null hypothesis is:
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(A) ß1 + ß2 = 0
(B) ß1 = ß2 = 0
(C) ß2 = 0
(D) ß2 - ß1 = 0
Question No.6 (Question Id - 51)
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Refer to question no. 48. Assume model II satisfies the classical regression model. To test that year does not affect the number of children, the Null hypothesis is:(A) ?6 = ?7 = 0
(B) ?4 = ?5 = ?6 = ?7
(C) ?4 + ?5 = 0
(D) ?4 = ?5 = ?6 = ?7 = 0
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Question No.7 (Question Id - 45)
The wage productivity model (Mirrlees, 1971), which states that worker's productivity is positively related to his/her level of consumption, explains:
A. Persistence of involuntary unemployment and wage rigidity in surplus labour economies.
B. Persistence of voluntary unemployment and wage rigidity in surplus labour economies.
C.Wage dispersion.
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Choose the most appropriate answer from the options given below:
(A) A only
(B) B only
(C) B and C only
(D) A and C only
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Question No.8 (Question Id - 1)
Consider the following system of equations, where functions f and g are differentiable:
f (x1, x2, x3)=0
g(x1, x2, x3)=0
Suppose there exist functions
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x1=x1(x3) and
x2=x2(x3)
such that (x1(x3), x2(x3), x3) solves the above system of equations. Suppose
A =
This download link is referred from the post: JNU Last 10 Years 2011-2021 Previous Question Papers with Answers
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