Economics 2022 Paper I 50 marks Examine

Q7

(a) Examine whether in Ricardian model, the theory of comparative advantage actually becomes a doctrine of comparative costs. (15 marks) (b) Distinguish between nominal and effective rates of protection in Standard Trade Model. Suppose • nominal tariff on imported good j is 40%, • tariff rate on input i is 40%, • cost share of imported input i in the total cost of production of commodity j is 0·5%. Determine the effective rate of protection and show that in this case nominal tariff rate is equal to the effective rate of protection. (20 marks) (c) Illustrate Jagdish Bhagwati's doctrine of 'Immiserising Growth'. (15 marks)

हिंदी में प्रश्न पढ़ें

(a) परीक्षण कीजिए कि क्या रिकार्डो के प्रारूप में तुलनात्मक लाभ का सिद्धान्त वास्तव में तुलनात्मक लागतों का सिद्धान्त बन जाता है । (15) (b) मानक व्यापार प्रारूप के अन्तर्गत संरक्षण की अंकित (नॉमिनल) तथा प्रभावी दरों के मध्य अन्तर्भेद कीजिए । मान लीजिए : • आयातित वस्तु j हेतु अंकित प्रशुल्क 40% है, • आगत i हेतु प्रशुल्क दर 40% है, • आयातित आगत i का लागत हिस्सा, j वस्तु की कुल उत्पादन लागत का 0·5% है । संरक्षण की प्रभावी दर का निर्धारण कीजिए तथा इस सन्दर्भ में दर्शाइए कि अंकित (नॉमिनल) प्रशुल्क दर एवं संरक्षण की प्रभावी दर एकसमान हैं । (20) (c) जगदीश भगवती द्वारा प्रतिपादित 'इमिसराइजिंग ग्रोथ' के सिद्धांत की व्याख्या कीजिए । (15)

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Directive word: Examine

This question asks you to examine. 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

Begin with a brief introduction linking classical trade theory to modern policy relevance. For part (a), spend ~30% of time examining how Ricardian comparative advantage reduces to comparative cost ratios with labour as sole factor; for (b), allocate ~40% on distinguishing nominal vs effective protection, showing the ERP formula derivation and calculation with given data; for (c), use ~30% to illustrate Bhagwati's immiserising growth with diagrams and conditions. Conclude by synthesising how these theoretical frameworks inform India's trade policy choices.

Key points expected

  • For (a): Explanation that Ricardian model uses single factor (labour) making comparative advantage identical to comparative labour cost ratios; distinction between absolute and comparative cost advantage; critique by later economists on real cost vs opportunity cost interpretations
  • For (b): Clear distinction between nominal tariff (t) on final good and effective rate of protection (ERP) measuring value-added protection; formula ERP = (t - a_i × t_i)/(1 - a_i) where a_i is input cost share; calculation showing ERP = (0.40 - 0.005×0.40)/(1-0.005) = 0.40, proving equality when input tariff equals output tariff and input share is negligible
  • For (c): Bhagwati's immiserising growth conditions: growth biased toward export sector + inelastic foreign demand + large country case + tariff-distorted initial equilibrium; diagram showing production possibility frontier shift with terms of trade deterioration outweighing growth gains
  • Integration of opportunity cost interpretation (Haberler) versus labour cost doctrine in Ricardian framework; reference to Viner's critique on comparative cost doctrine
  • Policy relevance: India's experience with ERP calculations in pre-1991 tariff structure; examples of primary export dependence and terms of trade risks (cotton, jute, tea)
  • Mathematical rigour in part (b): showing step-by-step derivation that when t_j = t_i, ERP simplifies to t_j regardless of a_i value, confirming the special case

Evaluation rubric

DimensionWeightMax marksExcellentAveragePoor
Concept correctness22%11Precisely distinguishes Ricardian labour cost ratios from opportunity cost interpretation; correctly defines ERP vs nominal protection with proper formula; accurately states all three Bhagwati conditions for immiserising growth; no conceptual conflation between absolute and comparative advantageBasic understanding of comparative advantage as cost difference; defines nominal and effective protection separately but may confuse formula components; states immiserising growth vaguely without all conditions; minor errors in theoretical lineageConfuses comparative advantage with absolute advantage; misstates ERP formula or omits denominator; describes immiserising growth as any growth causing poverty; fundamental misunderstanding of single-factor model implications
Diagram / model18%9For (a): labour cost ratio diagram or PPF with constant opportunity cost; for (b): value-added box diagram showing protection wedge; for (c): complete Bhagwati diagram with offer curves, PPF shift, and welfare contours showing post-growth utility below original; all diagrams properly labelled with economic intuition explainedAt least two relevant diagrams attempted; basic PPF for (a) or (c); may omit value-added diagram for (b); labels incomplete or explanation superficial; diagrams present but not integrated with analysisNo diagrams or irrelevant diagrams; diagrams copied without explanation; missing critical elements like terms of trade line or welfare comparison; failure to illustrate the specific theoretical proposition
Quantitative reasoning20%10Explicit ERP formula stated; step-by-step calculation: numerator (0.40 - 0.002) = 0.398, denominator 0.995, ERP = 0.40; rigorous proof that when t_j = t_i, ERP = t_j independent of a_i; algebraic demonstration of the equality conditionCorrect final answer with partial working; states formula but arithmetic errors; recognises equality result without proving why; calculation present but lacks algebraic rigour in showing the special case propertyIncorrect formula or calculation; confuses percentage and decimal forms; no derivation; arbitrary numbers without economic meaning; fails to demonstrate the required equality proof
Indian / empirical examples20%10For (a): India's labour-intensive exports (textiles) illustrating Ricardian logic; for (b): pre-1991 India ERP structure where high nominal tariffs on inputs eroded effective protection (cascading effect); for (c): primary commodity export dependence (jute, tea, iron ore) and terms of trade deterioration; references to Chelliah Committee or post-1991 tariff rationalisationGeneric developing country examples; mentions India's tariff history without specificity; vague reference to export-led growth; examples present but not tightly linked to theoretical mechanismsNo Indian examples; irrelevant developed country cases; examples contradict theory (e.g., manufactured export success for immiserising growth); purely theoretical answer with no empirical grounding
Policy implication20%10Synthesises implications: (a) Ricardian simplicity limits policy relevance—need for human capital and technology considerations; (b) ERP analysis explains why uniform tariffs matter for industrial structure—India's 1991 reforms; (c) export diversification and value-addition imperative to avoid immiserisation; balanced critique of free trade vs strategic interventionSeparate policy points per sub-part without synthesis; generic free trade vs protection conclusion; recognises tariff rationalisation importance but lacks depth on structural transformationNo policy conclusions; ideological stance without analysis; contradictory recommendations; fails to connect theory to contemporary trade policy debates or India's WTO engagement

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