Economics (अर्थशास्त्र 318) | Set A1 • Code 71/SS/318

Ans. (A) Single value
Curricular Justification: A measure of central tendency (such as the Mean, Median, or Mode) is an average that condenses a large mass of statistical data into a single representative central figure, enabling direct comparisons between distributions.

Ans. (C) (Q3 - Q1) / 2
Curricular Justification: Quartile Deviation (also known as the semi-interquartile range) is mathematically defined as half the difference between the upper quartile (\(Q_3\)) and the lower quartile (\(Q_1\)): \(QD = \frac{Q_3 - Q_1}{2}\).

Ans. (D) Any one of the above
Curricular Justification: Correlation can be categorized on the basis of direction into positive or negative, and on the basis of ratio of change into linear (straight-line constant ratio) or non-linear/curvilinear (varying ratio). Thus, it can be any of these forms.

Ans. (B) Relative
Curricular Justification: Index numbers are statistical barometers specifically designed to measure relative changes (percentages/ratios) in a variable or group of related variables over time or between locations, freeing them from absolute physical measurement units.

Ans. (D) All the above
Curricular Justification: Scarcity of resources gives rise to basic interrelated economic activities: production of goods/services, their distribution among individuals, and their final consumption to satisfy human wants.

Ans. (B) 2
Curricular Justification: By definition, the Production Possibility Frontier/Curve illustrates the maximum attainable combinations of two goods that can be produced in an economy with fully and efficiently utilized resources and a given technology.

Ans. (C) For whom to produce
Curricular Justification: "For whom to produce" is the problem of distribution of total national output/income among the factors of production (functional distribution: rent, wages, interest, profit) and among consumer households (personal distribution).

Ans. (A) Rises
Curricular Justification: Substitute goods have a direct cross-price relationship. When the price of good X rises, good Y becomes relatively cheaper. Consumers substitute commodity Y in place of X, causing the demand for Y to increase (shift rightward).

Ans. (D) All the above
Curricular Justification: The responsiveness of quantity demanded is measured across three primary dimensions: responsiveness to its own price (Price Elasticity), to consumer income (Income Elasticity), and to prices of related goods (Cross Elasticity).

Ans. (D) All the above
Curricular Justification: In economic analysis, Economic Cost = Explicit Cost (contractual out-of-pocket cash payments) + Implicit Cost (imputed cost of self-owned factors) + Normal Profit (minimum return required to induce the entrepreneur to remain in business).

Ans. (C) Both (A) and (B)
Curricular Justification: When \(MC = AC\), the Average Cost curve reaches its lowest point (Minimum). At this turning point, its mathematical rate of change is zero, meaning AC is momentarily stationary/constant. Hence, (C) correctly combines these dual characteristics.

Ans. (C) Income of the buyer
Curricular Justification: The income of the buyer is a key determinant of consumer demand, not supply. Commodity supply is determined by producer-side factors: state of technology, input prices, excise/GST taxation, and seller objectives.

Ans. (A) Price of the good
Curricular Justification: A "change in quantity supplied" refers to an expansion or contraction along the existing supply curve caused solely by a change in the commodity's own price. Changes in other factors (input prices, related goods) cause a "change in supply" (a shift of the curve).

Ans. (C) Parallel to X-axis
Curricular Justification: When price elasticity of supply is infinite (\(E_s = \infty\)), producers are willing to supply an unlimited quantity at a specific prevailing price. Graphically, this is shown as a horizontal line parallel to the quantity axis (X-axis).

Ans. (A) Monopoly
Curricular Justification: A monopoly market structure has exactly one single seller who commands entire industry supply. By comparison, oligopoly has a few sellers, and monopolistic competition has a large number of sellers.

Ans. (C) Both (A) and (B)
Curricular Justification: If an entire output (\(Q\)) is sold at price (\(P\)), \(\text{Value of Output} = Q \times P\). When part of the output remains in inventory, \(\text{Value of Output} = \text{Sales} + \text{Change in Stock}\). Both formulas represent the value of output under their respective conditions.

Ans. (C) Output
Curricular Justification: Brokerage/commission earned on the purchase or sale of assets or second-hand goods represents compensation for a currently rendered productive factor service. It is therefore included in national income as productive output of services, rather than a transfer payment.

Ans. (C) Profit
Curricular Justification: Under factor income classification: Labour earns wages, Capital earns interest, Land earns rent, and the Entrepreneur earns profit as the reward for organizational coordination and risk-bearing.

Ans. (C) M3
Curricular Justification: According to the Reserve Bank of India (RBI), \(M_1\) is designated as "Narrow Money", while \(M_3\) (\(M_1\) + net time deposits with commercial banks) is officially designated as "Broad Money" and serves as the primary operational monetary target.

Ans. (D) All the above
Curricular Justification: In India's constitutional federal structure, annual financial statements (budgets) are prepared at all three tiers of administration: the Union/Central level, the State level, and the Local level (Municipalities and Panchayats).

Arithmetic mean is computed by using direct method and assumed mean method (or shortcut method).

(i) The measure of dispersion (अपकिरण) helps us to know the degree of variability of data.
(ii) The difference between the largest and smallest value in a distribution is called range (परास, \(R = L - S\)).

(i) The relation between price and supply is an example of positive (धनात्मक / direct) correlation.
(ii) If the two variables change in the same direction and in the same proportion the correlation between the two is perfect positive (पूर्ण धनात्मक, \(r = +1\)).

(i) When demand of a good rises its price rises (or increases, due to excess demand pressure in the market).
(ii) Price and demand are inversely (विपरीत / negatively) related (as stated by the Law of Demand).

Increase in demand means rise in demand at the same price.
Economic Note: An 'increase in demand' refers to a rightward shift of the demand curve caused by favorable non-price factors, distinct from an 'extension in demand' caused by a price drop.

(i) True — Normal profit represents the minimum return necessary to keep an entrepreneur in business and is included in implicit economic costs.
(ii) False — Average Fixed Cost (\(AFC = TFC / Q\)) continuously declines as output expands, forming a rectangular hyperbola. Total Fixed Cost (\(TFC\)) remains fixed, not average fixed cost.

The other name of explicit cost is accounting (or out-of-pocket / paid-out) cost and of implicit cost is imputed (or opportunity) cost.

Forces of demand and supply determine the price (Equilibrium Market Price).

The relation between the three economic activities of production, consumption and investment is that they are interdependent (परस्पर निर्भर) and continuous (सतत / circular).

(i) The money receipt which does not involve any sacrifice on the part of the recipient is called transfer (हस्तांतरण / unearned) income.
(ii) Production is an addition to the utility (उपयोगिता / value) of the existing commodity.

Compensation of employees includes all monetary (cash wages/salaries) and non-monetary (in-kind / fringe) benefits accruing to the employee.

(i) Relation between consumption and level of income is called consumption function [उपभोग फलन, \(C = f(Y)\)].
(ii) Ratio between consumption and income is average propensity to consume [औसत उपभोग प्रवृत्ति, \(APC = C / Y\)].

(i) True — At the break-even level of income where Consumption equals Income (\(C = Y\)), Savings equal zero (\(S = 0\)), so the saving curve intersects the horizontal X-axis.
(ii) True — Because of positive autonomous consumption (\(\overline{C} > 0\)) required for basic survival even at zero income, the consumption curve starts above the origin and intersects the vertical Y-axis.

Margin requirement is qualitative (or selective) method while Bank Rate is quantitative (or general) method of credit control.

The major source of capital receipts of government are recovery of loans, borrowings (ऋण तथा अन्य देयताएं) and disinvestment (विनिवेश / other receipts).

Optimum utilization of resources implies that all available economic factors of production (land, labour, capital) are employed at their highest potential efficiency without any involuntary unemployment, idle capacity, or operational wastage. On a Production Possibility Curve, this state is represented by any combination lying exactly on the boundary curve (such as points A or B), denoting full productive efficiency where producing more of one good necessitates sacrificing some of the other.

1. Scope & Aggregation: Individual demand refers to the quantities of a commodity that a single consumer is willing and able to buy at various prices during a given period. Market demand is the horizontal summation of the quantities demanded by all consumers in the market (\(D_m = \sum d_i\)).
2. Determinants: Individual demand depends on the consumer's income, tastes, and prices of related goods. Market demand depends on all individual determinants plus market-wide factors such as total population size, age distribution, and national income distribution.

Elasticity of demand is a quantitative measure of the degree of responsiveness or sensitiveness of quantity demanded of a good to a change in any of its determinants (such as its own price, consumer's income, or price of related goods). Expressed mathematically as a percentage ratio:
\[\text{Elasticity of Demand} = \frac{\% \text{ change in quantity demanded}}{\% \text{ change in determinant}}\] It indicates not just the direction of change, but the exact magnitude of consumer response.

A reduction in indirect taxes (such as GST or excise duty) directly lowers the per-unit cost of production for sellers. As marginal cost falls, profit margins per unit of output expand at the existing market price. This incentivizes existing producers to supply more and attracts new producers, causing an increase in supply, represented by a rightward shift of the supply curve.

The saving function reflects the structural relationship between aggregate savings and the level of national income: \(S = f(Y)\). Derived from income identity (\(Y = C + S\)): \[S = -\overline{C} + (1 - b)Y\] where \(-\overline{C}\) represents dissaving at zero income, and \((1 - b)\) is the Marginal Propensity to Save (\(MPS = \frac{\Delta S}{\Delta Y}\)). Since \(MPC + MPS = 1\), savings increase positively as national income expands above the break-even point.

Definition: Price Floor (Minimum Support Price or Minimum Wage) is the legally mandated minimum price established by the government above the equilibrium price to protect agricultural producers from distress sales and workers from exploitation.

1. Market Surplus: At the elevated floor price, quantity supplied exceeds quantity demanded (\(Q_s > Q_d\)), generating excess unsold surplus.
2. Government Procurement & Buffer Stocks: To prevent market prices from crashing, state agencies (like the Food Corporation of India) purchase the surplus at the MSP to maintain national buffer stocks.
3. Fiscal Burden: Warehousing and procurement require substantial budgetary subsidies and financial outlays from the public exchequer.

1. Cost of Borrowed Capital: Interest rate represents the cost of funds borrowed to purchase plant, machinery, and factory buildings. A higher interest rate raises project financing costs, reducing prospective profitability.
2. Comparison with Marginal Efficiency of Capital (MEC): Rational entrepreneurs invest only if the expected rate of return (MEC) exceeds or matches the prevailing borrowing rate of interest (\(MEC \ge r\)). When interest rates rise, projects whose expected returns fall below the new rate are shelved, causing private investment to contract.
3. Opportunity Cost of Owned Funds: Even when a firm utilizes retained earnings, the interest rate represents the opportunity cost of self-financing. High interest rates encourage firms to lend funds in financial markets rather than lock them in real capital goods.

1. Direct Public Employment Schemes: The budget allocates funds to direct wage-employment programmes such as MGNREGA (guaranteeing 100 days of rural wage work) and urban employment schemes, providing income security to vulnerable households.
2. Capital Infrastructure Investments: By undertaking massive public investment in infrastructure projects (highways, railways, housing under PMAY), the government generates direct construction employment and indirect multiplier jobs in steel, cement, and transport sectors.
3. Support for MSMEs & Self-Employment: Budgetary credit guarantees, subsidized loans (e.g., MUDRA, Stand-Up India), and skill development programmes encourage entrepreneurship and absorb labor in micro and cottage enterprises.