Economics 2024 Paper I 50 marks Discuss

Q6

(a) Discuss the elasticity approach and absorption approach for adjustments in balance of payments. (20 marks) (b) By using Stolper-Samuelson theorem, discuss the possible effects of free trade on income inequalities in developing countries. (15 marks) (c) Explain how the elasticity of demand for foreign exchange is influenced by the elasticity of home demand for imports and by the elasticity of home supply of import-competing goods. (15 marks)

हिंदी में प्रश्न पढ़ें

(a) भुगतान शेष में समायोजन के लोच दृष्टिकोण तथा अवशोषण दृष्टिकोण का वर्णन कीजिए। (20 अंक) (b) स्टोलपर-सैमुएल्सन सिद्धान्त की सहायता से विकासशील देशों की आय की असमानताओं पर पड़ने वाले मुक्त व्यापार के सम्भावित प्रभावों की चर्चा कीजिए। (15 अंक) (c) समझाइए कि किस प्रकार विदेशी विनिमय की माँग की लोच, आयातों की घरेलू माँग की लोच तथा आयात प्रतियोगी उत्पादों की घरेलू पूर्ति की लोच से प्रभावित होती है। (15 अंक)

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Directive word: Discuss

This question asks you to discuss. The directive word signals the depth of analysis expected, the structure of your answer, and the weight of evidence you must bring.

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How this answer will be evaluated

Approach

The directive 'discuss' requires a balanced, analytical treatment across all three sub-parts. Allocate approximately 40% of time and words to part (a) given its 20 marks, and roughly 30% each to parts (b) and (c). Structure with a brief introduction on BOP adjustment theories, then address each sub-part sequentially with clear sub-headings, ensuring theoretical depth in (a), application of Stolper-Samuelson to developing country contexts in (b), and rigorous derivation of elasticities in (c). Conclude with integrated policy insights on trade liberalization and BOP management.

Key points expected

  • Part (a): Marshall-Lerner condition (sum of export and import demand elasticities > 1) and the J-curve effect; Alexander's absorption approach (Y > A or Y < A for surplus/deficit) with policy implications of expenditure-switching vs expenditure-reducing policies
  • Part (a): Critical comparison of elasticity vs absorption approaches—price mechanism vs income mechanism, short-run vs long-run relevance, and synthesis through monetary approach
  • Part (b): Stolper-Samuelson theorem mechanics—protection raises real return to scarce factor; application to developing countries where labor is abundant and capital/land is scarce, implying free trade benefits labor and worsens income inequality for capital owners
  • Part (b): Nuanced discussion of developing country realities—skilled vs unskilled labor distinction, informal sector dynamics, and empirical evidence from India post-1991 reforms showing rising wage inequality
  • Part (c): Derivation showing elasticity of demand for foreign exchange (ηfx) equals sum of elasticity of home demand for imports (ηm) and elasticity of home supply of import-competing goods (εs), weighted by import share
  • Part (c): Economic intuition—why supply elasticity of import substitutes matters for foreign exchange demand; policy relevance for India's import substitution strategies and forex reserve management

Evaluation rubric

DimensionWeightMax marksExcellentAveragePoor
Concept correctness25%12.5Precise statement of Marshall-Lerner condition with correct mathematical form; accurate exposition of Alexander's identity (B = Y - A); correct application of Stolper-Samuelson factor intensity assumptions; mathematically valid derivation of forex demand elasticity in (c); no conceptual conflation between approachesBasic understanding of both approaches but imprecise on Marshall-Lerner mathematical condition; vague on absorption identity; superficial Stolper-Samuelson application without factor intensity clarity; incomplete elasticity derivationConfuses elasticity and absorption mechanisms; misstates Stolper-Samuelson as about absolute factor returns rather than relative; fundamental errors in elasticity derivation; conflates supply and demand elasticities
Diagram / model20%10J-curve diagram for (a) showing time path of trade balance post-devaluation; IS-LM-BP or absorption framework diagram; Edgeworth box or specific-factors model for Stolper-Samuelson in (b); clear supply-demand diagram for forex market with import demand and domestic supply curves in (c); all diagrams properly labeled with economic intuition explainedJ-curve mentioned but diagram missing or poorly drawn; generic trade diagrams without specific model application; forex market diagram without clear linkage to import-competing supply; labels incompleteNo diagrams or completely incorrect diagrams; diagrams copied without explanation; failure to relate graphical analysis to question requirements
Quantitative reasoning15%7.5Explicit mathematical derivation for part (c): ηfx = ηm + (M/X)·εs or equivalent; numerical illustration of Marshall-Lerner condition; quantitative assessment of India's trade elasticities; clear handling of partial derivatives and equilibrium conditionsMentions elasticities without mathematical derivation; vague reference to 'sum of elasticities' without specification; no numerical application to Indian dataAbsent quantitative treatment; confused mathematical notation; incorrect algebraic manipulation; treats elasticities as binary rather than continuous measures
Indian / empirical examples20%10For (a): India's 1991 devaluation experience and J-curve evidence, or 2013 taper tantrum absorption constraints; for (b): post-1991 wage inequality trends (NSSO data), sectoral shifts in organized vs unorganized manufacturing, specific industry cases like textiles vs capital goods; for (c): India's import demand elasticities for petroleum, gold, or electronics; RBI forex intervention strategiesGeneric mention of 1991 reforms without specific application; vague reference to 'rising inequality in India'; no empirical elasticity estimates; missing sectoral specificityNo Indian examples; irrelevant developed country examples; factually incorrect references (e.g., attributing absorption approach to Indian economist); purely theoretical treatment throughout
Policy implication20%10Integrated policy analysis: for (a), when to use devaluation vs fiscal contraction based on elasticity conditions and output costs; for (b), targeted compensation mechanisms for capital owners, skill development for labor, gradual liberalization sequencing; for (c), implications for optimal tariff design and forex market intervention; coherent synthesis on trade policy-BOP nexus for developing economiesLists policies without analytical linkage to theoretical frameworks; generic 'government should help affected workers' without Stolper-Samuelson grounding; standard RBI intervention description without elasticity-based rationaleNo policy discussion; contradictory recommendations; policy prescriptions mismatched to theoretical conclusions (e.g., recommending protection based on elasticity approach); purely normative statements without analytical foundation

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