JNU SIS 2021 question paper

All 99 questions from the JNU SIS 2021 JNU MA Economics entrance paper. Open any question for the worked solution.

Q1Under the matrix notation for the classical linear regression model with T data points and k explanatory variables, y = xβ + u, what are the…
Q2Consider the following regression equation: yᵢ = α + β₁ x₁ᵢ + β₂ x₂ᵢ + β₃ x₃ᵢ + uᵢ. Which one of the following would be a possible restricted…
Q3Consider the following regression equation: yᵢ = α + β₁ x₁ᵢ + β₂ x₂ᵢ + β₃ x₃ᵢ + uᵢ. What would be the null hypothesis for the standard regression…
Q4Suppose that the value of R2 for an estimated regression model is exactly zero. Which of the following are true? A. All coefficient estimates on the…
Q5Consider the following two regression models: Model 1: yᵢ = α₀ + α₁ x₁ᵢ + uᵢ Model 2: yᵢ = β₀ + β₁ x₁ᵢ + β₂ x₂ᵢ + uᵢ Which of the following…
Q6What would be the consequences for the OLS estimator if heteroscedasticity is present in a regression model but ignored? A. It will be biased B. It…
Q7Near multicollinearity occurs when
Q8Which one of the following is NOT an example of misspecification of functional form in regression analysis?
Q9In a four-sector economy, which of the following is assumed always to increase when GDP increases?
Q10Which of the following is not a convincing argument for a negatively sloping AD (Aggregate Demand) curve?
Q11Suppose the real wage in a country is at the equilibrium level, but there is some natural unemployment. Which of the following does not help to…
Q12Two managers can invest effort in creating a better working relationship. Each invests eᵢ ≥ 0, and if both invest more then both are better off, but…
Q13Consider the labor market for workers characterized by the following supply and demand curves S(w) = -50 + 5w D(w) = 1000 - 10w Compute the worker…
Q14The monopolist faces a demand curve given by D(p) = 10p⁻³. Its cost function is c(q) = 2q. What are the optimal level of output and price?
Q15Suppose that a representative, perfectly competitive firm in the market has production function F(K, L) = K^(1/2)L^(1/2), where K denotes capital…
Q16Consider the Cournot duopoly model, where inverse demand is given by P(Q) = 100 - Q, Q = q₁ + q₂. Let the marginal costs of two firms be c₁ = 30 and…
Q17In Country X, cigarettes are forbidden, so people trade cigarettes in a black market. The cigarette demand is Q_D = 12 - P, and the cigarette supply…
Q18Suppose parking fees at South Extension increases. If demand is relatively elastic then
Q19The solution to the following minimization problem: min y = x₁ + x₂ subject to the constraint 1 - √(x₁) - x₂ = 0 is
Q20Let f(x) = x², and the domain of x is [1, 2]. Which of the following statements is true?
Q21The derivative f′(x), of the function f(x) = x³ e^x is
Q22Compute ∫₁² x lnx dx
Q23Consider two countries, A and B. In both the countries, the production function is given by a Cobb-Douglas technology: Y = AK^(1/3)L^(2/3), where K…
Q24Think of a macroeconomy described by the following: C = 200 + 0.5(Y - T); T = 100 + 0.2Y, NX = 150 - 0.2Y, I = 300; G = 400, where Y is the national…
Q25If the interest rate is higher in country X than in country Y, then
Q26Assume that C = c₀ + c₁(Y - T), where C is the Keynesian consumption function, c₀ is autonomous consumption, c₁ is the marginal propensity to…
Q27One factor which does NOT influence the levels of real output and employment in the classical macro model is the
Q28According to the classical macro model, which of the following is NOT consistent with perfect competition?
Q29The supply of labor in the classical macro model is a function of the A. marginal product of labor. B. real wage. C. the public's preference for…
Q30According to Keynes, if the consumption-income relationship is given as C = a + bY_D, where Y_D is disposable income and a and b are constants, then…
Q31A positively sloped LM schedule will be relatively flat if the interest elasticity of money demand is
Q32Consider the Keynesian consumption function: C = c₀ + c₁(Y - T) and goods market clearing is given by: Y = C + I + G. Then, autonomous spending is…
Q33Consider two economies that are identical, with the exception that one has a high marginal propensity to consume (mpc) while the other has a low…
Q35Consider a world with two factors of production, namely capital and labour, and where countries engage in free trade as per the Heckscher Ohlin…
Q36If the domestic demand and domestic supply for shirts in a small country are given as Q_D = 11 - 2P Q_S = -1 + 2P and if the international price of…
Q37The domestic demand and supply of computer chips for a small country are given as Q_D = 14 - 2P Q_S = -2 + 2P Initially the small country engages in…
Q38The maximum quantity of food and cloth that two countries A and B can produce by using all of the factors of production in their respective…
Q39A country uses capital and labour to produce two commodities, motorcycles and bread, where the production of motorcycles is capital-intensive and…
Q40In the simple Ricardian model with labour being the only resource to produce two goods at constant costs, the pre-trade price of goods is
Q41Free trade is the optimal trading policy for
Q42Consider a small country with the domestic demand and domestic supply for pens given as Q_D = 10 - P Q_S = -2 + P Initially the small country…
Q43In the Heckscher Ohlin model, free trade in goods will lead to A. increase in wage rate in the labour abundant country B. increase in wage rate in…
Q44The specialization in production due to free trade is likely to be A. Complete with increasing opportunity costs B. Complete with constant…
Q45Suppose U=u(t) and V=v(t) are two variables which are functions of time t. The expression for the rate of growth of Y (rogY) when Y= U-V is
Q46The derivative of the function y = ((x-2)²)/(√(x²+1)), x ≠ 2 is
Q47Suppose the demand for a commodity Q is the following function of its own price P_Q, price of another commodity P_X, and income Y and A is a…
Q48At what compound rate of interest r per annum will a sum double itself in t years, when interest is computed annually?
Q49The elasticity of substitution between capital (K) and labour (L) for the production function Y = (K^ρ + L^ρ)^(1/ρ), ρ ≠ 0, tends to A. 1 as ρ ⟶ 0…
Q50Suppose the utility function has the form U(x₁, x₂) = G(f(x₁, x₂)) where G is an increasing function, i.e., G'>0, and function f is increasing and…
Q51While solving for a competitive equilibrium in a general equilibrium model with N commodities a price normalization is required because of which of…
Q52If the competitive equilibrium price of a good is zero then which of the following situations is indicated A. There is an excess supply of the good…
Q53Suppose both the output and input prices faced by a competitive profit maximizing producer double. Then the maximum profit he can earn
Q54Suppose the technology exhibits constant returns to scale. Then the maximum economic profit of a competitive producer
Q55Suppose p and y denote the vector of prices and income, respectively. Suppose consumption bundle x⁰ is chosen in a budget scenario (p⁰, y⁰) and x¹…
Q56Let A and B be events such that P(A) = 1/2, P(B) = 1/3 and P(AB) = 1/4. Then the value of P(A/B) is [Here, P(A/B) indicates probability of A…
Q57Let A and B be independent events with P(A)=1/2 and P(AUB) = 2/3. Then P(BcA) is (here Bc indicates the complement of event B)
Q58Suppose that X and Y have the following joint probability distribution: | Y → / X ↓ | -3 | 2 | 4 | Sum | 1 | 0.1 | 0.2 | 0.2 | 0.5 | 3 | 0.3 | 0.1 |…
Q59Let X be a continuous random variable with probability density function as given below: f(x) = { kx; 0 ≤ x ≤ 5; 0; Otherwise } Then what is the…
Q60For a symmetric distribution which of the following is true?
Q61For which of the following probability distribution is mean > variance?
Q62The mean and variance of a binomial variable are 4 and 4/3 respectively. What are the parameters of the distribution?
Q63What is the determinant of the matrix [0 1 2; 3 4 5; 6 7 8]?
Q64If the determinant of a matrix is zero, then which of the following is true?
Q65If the following matrix is singular, then what is the value of α? [1 2 1; 2 0 α; 1 α 1]
Q66Suppose that A is (5X4) matrix, B is (r x s) matrix and C is (p X 3) matrix. If AᵀBCᵀ is defined (where Aᵀ and Cᵀ are transposes of A and C…
Q67One study found that the Gini coefficient for Country A was 0.3 and that of Country B was 0.33. From this information we can conclude that Country A…
Q68If a borrower takes actions that may not lead to the best project outcome and therefore, a high risk of default, but this cannot be observed by the…
Q69Which of the following is NOT a possible cost of high fertility rate and rapid population growth A. increasing returns to natural resources with a…
Q70According to the Lewis Model, as industry expands, it is able to withdraw labour from agriculture without affecting agricultural output because
Q71Which of the following is NOT a component of the Human Development Index?
Q72Which of the following is NOT consistent with Rosenstein-Rodan's theory of development? A. piecemeal investment will promote economic development B.…
Q73If the distribution of income in a country is (100,120,140,155) and the poverty line is 150, then poverty as denoted by the headcount ratio_…
Q74Two income distributions are given below where the first set of numbers denotes incomes and the second set of numbers denotes the number of people…
Q75The Harrod-Domar growth model suggests that growth is
Q76Read the problem below A family owns a plot of land and two people are needed to work on each acre of land. Each acre produces an output of Rs.6000…
Q77Read the problem below A family owns a plot of land and two people are needed to work on each acre of land. Each acre produces an output of Rs.6000…
Q78Consider the following system of 2 differential equations: ẋ = 2x - 3xy ẏ = xy² + y Then,
Q79lim_(x → 0) (e^x-1)/x is
Q80Suppose we have [3 2; 1 0][dz; dy] = [2; 1] dx Then dz/dx is
Q81A singular matrix
Q82Suppose there is a negative AD shock and no shock to AS. It is known that as a result, the economy has fallen into a recession, and output has…
Q83Consider two different economies, (i) a closed Keynesian liquidity trap economy, and (ii) an open economy with perfect capital mobility and a fixed…
Q84According to the classical quantity theory of money, the LM curve
Q85The Phillips curve
Q86A monopolist sells the same product in two geographically separated markets, at price P₁ in market 1 and at price P₂ in market 2. It is known that…
Q87Consider a Cournot oligopoly with n firms, and (inverse) demand function P = 200 - Σᵢ₌₁ⁿ qᵢ where P represents the market price and qᵢ is firm i's…
Q88In which of the following cases do we get L-shaped indifference curves?
Q89The demand for labor will be more elastic when
Q90Which of the following circumstances will increase the likelihood of an individual being a nonparticipant in the labor market?
Q91A reduction in the number of low-cost student loans should reduce the number of people going for college education because
Q92If an estimator is said to be consistent, it is implied that
Q93Negative residual autocorrelation is indicated by which one of the following?
Q94Consider the following equation and determine the class of model that it best represents Yᵢₜ = β₀ + β₁ xᵢₜ + εᵢ + uᵢₜ
Q95Simultaneous causality
Q96When the average difference of earnings between college graduates and high school graduates is used to estimate the “return” to a college degree, an…
Q97If the nth partial sum of the series Σᵢ₌₁^∞ aₙ is Sₙ = (2n²+2)/(3n²+1), then Σᵢ₌₁^∞ aₙ =
Q98The infinite series Σₙ₌₁^∞ n/(n³+5)
Q99Suppose AB = [5 4; -2 3] and B = [7 3; 2 1]. Then find A
Q100Which of the following are advantages of greater exchange rate flexibility? A. The alleviation of potential conflicts that arise between the…