Identify the correct statements from below :
(A) First UN conference on human environment was held in Norway in 1972.
(B) In I = PAT expression, P stands for poverty.
(C) Pollution tax was suggested by Pigou.
(D) Population growth follows a logistic distribution.
(E) Hedonic pricing is an environmental valuation method used in valuing tourism sites.
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Given $$A = \begin{pmatrix} 2 & 0 & 4 \\ 1 & 3 & 1 \end{pmatrix}$$​ and $$B = \begin{pmatrix} 4 & 5 & 0 \end{pmatrix}$$​, which of the following is true?

A. $$AB^T \ is \begin{pmatrix} 8 \\ 19 \end{pmatrix}$$​​
B. $$AB^T$$ is defined​
C. $$AB$$​ is not defined
D. $$BA$$​ is defined
E. $$BA^T \ is \begin{pmatrix} 8 & 19 \end{pmatrix}$$​​

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The input - output matrix for a two sector economy is given by $$A = \begin{pmatrix} 0.25 & 0.40 \\ 0.10 & 0.10 \end{pmatrix}$$​. If the external demand for the outputs of the two sectors is $$D = \begin{pmatrix} 10 \\ 20 \end{pmatrix}$$, what will be the optimal output levels of the two commodities?

Six number of fair dice are rolled simultaneously. What is the probability that each face shows up with a different number?

The marginal revenue of a firm is Rs. 10 and the price it charges per unit is Rs. 30. Assuming that the firm is a profit maximiser, what is the own price elasticity of demand for the firm at that point of profit maximisation?

In a two variable regression, the dependent and independent variables are Y and X respectively. The coefficient of correlation between X and Y is 0.8. Which of the following statements is correct?

Consider the following system of equations:
​$$\begin{aligned}Y_1 &= \alpha_0 + \alpha_1 Y_2 + \alpha_3 Y_3 + \alpha_4 X_1 + \alpha_5 X_2 + U_1 \\Y_2 &= \beta_0 + \beta_1 Y_3 + \beta_2 Y_1 + \beta_3 X_2 + U_2 \\Y_3 &= \lambda_0 + \lambda_1 X_1 + \lambda_2 X_2 + \lambda_3 X_3 + U_3\end{aligned}$$​​
According to the order condition, the first equation is:

Given the objective function $$y=f(x_1, x_2, \ldots, x_n)$$​ and the constraint $$g(x_1, x_2, \ldots, x_n)=0$$​, the second order condition for an extremum is:
A. $$|\bar{H}_2| < 0, |\bar{H}_3| < 0, \ldots$$​, for a maximum
B. $$|\bar{H}_2| > 0, |\bar{H}_3| < 0, \ldots$$​, for a maximum
C. $$|\bar{H}_2| < 0, |\bar{H}_3| > 0, \ldots$$​, for a maximum
D. $$|\bar{H}_2| > 0, |\bar{H}_3| > 0, \ldots$$, for a maximum
E. $$|\bar{H}_2| < 0, |\bar{H}_3| < 0, \ldots$$, for a minimum
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Match List - I with List - II regarding foreign exchange concepts:

List - I
(A) Arbitrage
(B) Hedging
(C) Speculation
(D) Foreign exchange risk

List - II
(I) Refers to when an investor accepts and seeks foreign exchange risk
(II) Refers to a time when foreign exchange shifts, causing the spot rate to vary frequently
(III) Refers to purchase of currency in monetary center where it is cheaper
(IV) Refers to avoidance of foreign exchange risk

Match List - I with List - II regarding economic theories and contributors:

List - I
(A) Top beneficiary from Foreign exchange trading
(B) Competitive equilibrium is Pareto efficient
(C) Walras
(D) Game Theory

List - II
(I) John Von Neuman and Oscar Morgenstern
(II) General equilibrium analysis
(III) London
(IV) First theorem of welfare economics

Inflation confers no benefits on society, but it imposes several real costs. What among the following are costs of inflation ?
(A) Shoeleather costs associated with reduced money holdings
(B) Menu cost associated with more frequent adjustmental prices
(C) Increased variability of relative prices
(D) Unintended changes in tax liabilities due to nonindexations of the tax code
(E) Arbitrary redistribution of wealth associated with debts
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