Open Economy Macroeconomics

Chapters 4 and 5 examined the closed-economy Keynesian model — output is determined by domestic AD = C + I + G. The real world is open. Indian software is sold in California; iPhones are designed in Cupertino and assembled in Sriperumbudur; the Reliance Industries balance sheet has bonds held in London; the RBI manages ~$680 billion in foreign exchange reserves; over 32 million Indians live abroad and remit $125 billion home each year.

Once trade, capital flows and currencies enter the picture, three new questions arise: How do we account for cross-border flows? How is the exchange rate determined? How does the openness change domestic fiscal and monetary policy? Chapter 6 answers each.

Balance of Payments — the master accounting

The Balance of Payments (BoP) is a systematic record of all economic transactions between residents of a country and the rest of the world during a financial year. It follows double-entry book-keeping — every transaction is recorded as a credit (inflow) and a debit (outflow) — so the BoP, in aggregate, must balance.

The BoP has two main accounts plus a reserves balancing line:

Current Account

Records transactions in goods, services, primary income and current transfers.

• Merchandise trade — exports (credit) and imports (debit) of goods. Balance = Trade Balance. India typically runs a trade deficit (more imports than exports).
• Services (Invisibles) — software, business services, travel, financial services, insurance, transport. India enjoys a large surplus on services (IT/ITeS exports ~$200 billion in 2024).
• Primary income — investment income (interest, dividends), employee compensation.
• Current transfers — workers' remittances, gifts, official transfers. India received ~$125 billion remittances in 2024, the world's largest.

Capital Account

Records transactions involving change in financial assets and liabilities. Major heads:

• Foreign Direct Investment (FDI) — long-term investment giving "control" (≥10% equity per IMF convention).
• Foreign Portfolio Investment (FPI/FII) — purchase of equity/debt securities below the FDI threshold.
• External commercial borrowings (ECBs) — Indian corporates raising debt abroad.
• NRI deposits — NRE/NRO/FCNR accounts.
• Banking capital, government borrowings, IMF transactions.

Modern BoP statistics (BPM6 standard, RBI follows since 2012) distinguish a small Capital Account (capital transfers, debt forgiveness) from the much larger Financial Account (FDI, FPI, loans). For NCERT purposes, "capital account" is used in the broader sense.

BoP identity, surplus & deficit

If we add the current and capital accounts, we get the overall BoP balance:

The popular phrase "twin deficit" refers to a country simultaneously running a fiscal deficit and a current account deficit — a vulnerable combination, as India learned in 1991 and the US has run for decades.

The foreign exchange market

An exchange rate is the price of one currency in terms of another — e.g. ₹84 per US dollar means it costs ₹84 to buy $1.

In a market regime, the exchange rate is determined by demand and supply of foreign currency:

• Demand for USD in India comes from: importers, Indians travelling abroad, Indian investors buying foreign assets, Indians servicing foreign debt, RBI when intervening to weaken the rupee.
• Supply of USD in India comes from: exporters, foreign tourists in India, foreign investors (FDI/FPI inflows), remittances from NRIs, foreign borrowing, RBI when intervening to strengthen the rupee.

If demand for USD rises (or supply falls), USD appreciates — i.e. the rupee depreciates (more rupees per dollar).

Appreciation vs Depreciation vs Revaluation/Devaluation

Exchange-rate regimes

Three pure types and many hybrids:

1. Fixed (pegged) — government commits to a specific rate, defends it through reserves. Examples: Bretton Woods system (1944-71) pegged to gold-dollar; Hong Kong dollar pegged to USD since 1983. Pros: certainty for trade and investment. Cons: requires large reserves; vulnerable to speculative attacks (1992 Black Wednesday — UK forced off the ERM by George Soros).
2. Flexible (floating) — purely market-determined. Examples: USD, GBP, EUR, JPY largely float. Pros: automatic adjustment; reserves not needed. Cons: volatility hurts trade; risk of overshooting.
3. Managed float — market-determined but central bank intervenes to smooth volatility. India follows this since 1993 — the rupee floats but RBI actively buys/sells dollars to manage swings. China runs a tighter managed peg.

Real vs Nominal Effective Exchange Rates

The bilateral exchange rate (₹/USD) is just one rate. Trade-weighted indices capture overall currency strength:

• NEER (Nominal Effective Exchange Rate) — weighted geometric mean of rupee's value against a basket of major partner currencies, weighted by trade shares. RBI publishes a 40-currency NEER index.
• REER (Real Effective Exchange Rate) — NEER adjusted for differences in inflation. A REER above 100 means the rupee is "overvalued" relative to the base year.

A rising REER means exports become less competitive. India's REER has hovered around 102-105 in 2023-25, signalling mild overvaluation — a recurring debate at every RBI Monetary Policy Committee meeting.

FDI vs FPI — the quality of capital matters

Policy preference: FDI > FPI. India has steadily liberalised FDI through the automatic route, with sectoral caps (100% in single-brand retail, 74% in defence, 26% in print media).

India's 1991 BoP crisis — and what it taught

Key responses:

• Two devaluations of the rupee within three days (1-3 July 1991) — total ~19%.
• Move from fixed exchange rate to managed float (LERMS dual rate 1992 → single rate 1993).
• Industrial delicensing (24 July 1991).
• FDI liberalisation; 51% automatic route for many sectors.
• FERA → FEMA (1999) for capital controls.
• Build-up of FX reserves — from $1 bn (1991) to ~$680 bn (2024), the fourth-largest in the world after China, Japan and Switzerland.

IMF and the Bretton Woods system

The International Monetary Fund (IMF) was created at the Bretton Woods Conference (1-22 July 1944) along with the World Bank (IBRD). 44 nations agreed on a fixed-exchange-rate system pegged to the US dollar, which was in turn convertible to gold at $35/ounce. The IMF would provide short-term BoP financing to members.

The system worked for 27 years but collapsed when the US could no longer hold the gold convertibility — Nixon "closed the gold window" on 15 August 1971. The world moved to flexible exchange rates by the mid-1970s. The IMF reinvented itself as a lender to developing countries in BoP distress (India 1981, 1991; Mexico 1995; Asia 1997; Greece 2010).

India is a founding IMF member; quota share ~2.75% (post-2010 reforms); India currently holds the IMF Deputy Managing Director position. The Global South demands further IMF voting reform to reflect their share of world GDP.

India today — open economy snapshot

Compare with 1991: reserves $1.1bn vs $680bn (618×); reserves cover from 2 weeks to 10 months; CAD that nearly broke the system then is routine and sustainable now.