International trade theory and balance of payments accounting explain how countries exchange goods, services, and capital across borders.
Must Know.
Trade Theory and the Balance of Payments.
Core Ideas.
- Comparative Advantage. Classical trade theory, built on comparative advantage, explains why countries benefit from international trade.
- Most Favoured Nation. The MFN principle requires equal trade treatment among trading partners.
- Balance of Payments. A country’s BoP records all economic transactions between its residents and the rest of the world.
- Currency Devaluation. Devaluation aims to make a country’s exports cheaper and imports more expensive, improving the trade balance.
- Foreign Exchange Reserves. India’s reserves are made up mainly of foreign currency assets, gold, and Special Drawing Rights.
Good to Know.
Trade Policy and the Rupee.
Everyday Trade Mechanics.
- SAFTA. The South Asian Free Trade Area aims to reduce trade barriers among South Asian countries.
- Rupee Depreciation. A depreciating rupee generally makes India’s exports more competitive, but raises the cost of imports.
- Foreign Trade Policy. India’s Foreign Trade Policy is administered by the Ministry of Commerce and Industry.
- Rupee Convertibility. India’s rupee is fully convertible on the current account, for trade and travel, but only partly convertible on the capital account. See IndEco0274 — Rupee Convertibility: Current and Capital Account for the full picture.
External Debt Composition and Currency Crisis Risk.
- External Debt Ownership. Government entities owe only about a fifth of India’s external debt. Most of it is owed by private-sector borrowers, not the government.
- External Debt Currency Mix. India’s external debt is not all in US dollars. Around 55% is USD-denominated, with the rest split across Indian rupees, Japanese yen, SDRs, and euros.
- Currency Crisis Buffers. Foreign currency earnings from India’s IT sector and remittances from Indians abroad are steady inflows. They build up reserves and lower the risk of a currency crisis.
- Government Expenditure Risk. Higher government expenditure works the other way. It tends to widen the fiscal and current account deficits together, raising currency-crisis risk instead of reducing it.
Test Yourself.
Great to Know.
Beyond the Trade Figures.
Why BoP Accounting Matters More Than Trade Alone.
- Specialisation Gains. Comparative advantage explains why even a country good at everything still benefits from specialising and trading, a counterintuitive insight.
- More Than Trade. BoP accounting reveals far more about an economy’s external health than trade figures alone. It captures capital flows and services too.
- Devaluation Trade-offs. Currency devaluation carries real trade-offs. It boosts exports but also raises domestic prices for imported goods and inputs.
Import Cover: Reading a Country’s Reserve Buffer.
- Definition. Import cover is the number of months of imports that a country’s foreign exchange reserves can pay for.
- Why It Matters. It signals how well a country can keep paying for imports if a shock cuts off other sources of foreign exchange.
- Not GDP or Export Ratios. Import cover is not the ratio of imports to GDP, and not the ratio of exports to imports. It measures reserves against monthly import spending.
- The 2016 Oil Boost. India’s import cover stood at 9.8 months in September 2015. Crashing crude oil prices, reported by Business Standard on 13 January 2016, pushed projected import cover toward roughly 10.8 months by the end of 2015.
- Why Oil Mattered So Much. Oil made up roughly a third of India’s total imports at the time. Cheaper oil sharply cut the import bill and lifted the cover ratio.
Previous Year Questions.
📝 Previous Year Questions
UPSC CSP 2022 — NEER, REER, and Trade Competitiveness
- UPSC 2022 Asked as: “An increase in NEER indicates rupee appreciation; an increase in REER indicates improved trade competitiveness; rising domestic inflation causes NEER and REER to diverge.” The correct answer is (c) 1 and 3 only.
- UPSC 2022 A rising REER actually signals worsening, not improving, trade competitiveness, since domestic goods grow relatively more expensive abroad. See this question.
UPSC CSP 2021 — What Devaluation Necessarily Does
- UPSC 2021 Asked as: “The effect of devaluation of a currency is that it necessarily improves export competitiveness, increases the foreign value of the domestic currency, and improves the trade balance.” The correct answer is (a) 1 only.
- UPSC 2021 Devaluation necessarily cuts, not raises, the domestic currency’s foreign value, and need not improve the trade balance. See this question.
UPSC CSP 2020 — A Question UPSC Dropped
- UPSC 2020 Asked as: “With reference to the international trade of India at present, which of the following statements is/are correct?” UPSC officially dropped this question from its answer key.
- UPSC 2020 India’s current account briefly swung to a surplus just before the exam, likely making one statement debatable. The site’s own 2026 current account update, CA0019, shows the same pattern repeating.
UPSC CSP 2019 — Measures to Stop a Sliding Rupee
UPSC CSP 2019 — Who Really Owes India’s External Debt
UPSC CSP 2019 — What Lowers Currency Crisis Risk
UPSC CSP 2016 — What “Import Cover” Means
Current Affairs.
Full coverage: CA0019 — India Records Current Account Surplus of $7.1 Billion (Q4 FY 2025-26).
- On 8 June 2026, the RBI reported a current account surplus of $7.1 billion for Q4 FY 2025-26, equal to 0.7% of GDP. (Source: Business Standard)
- This was down from a $13.7 billion surplus in Q4 FY 2024-25, a year earlier. (Source: Forbes India)
- For the full year FY26, the current account deficit widened to $25.2 billion. FY25’s full-year deficit had been $22.9 billion. (Source: Business Standard)
- Net services receipts rose to $60.4 billion in Q4 FY26, up from $53.3 billion a year earlier. (Source: Forbes India)
- Remittances (private transfer receipts) rose to $43.5 billion in Q4 FY26, up from $33.9 billion a year earlier. (Source: ETV Bharat)
Related reading: for the rupee’s own convertibility rules on trade versus capital transactions, see IndEco0274 — Rupee Convertibility: Current and Capital Account.
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