Open Economy

OPEN ECONOMY

An **open economy** is one that interacts with other countries through various channels. Unlike a closed economy (which we simplified earlier), real modern economies engage in international transactions.

Three Key Linkages in Open Economies

**Output Market**: Trade in goods and services — consumers and producers choose between domestic and foreign goods. Imports are leakages from circular flow (reduce aggregate demand); exports are injections (increase aggregate demand).

**Financial Market**: Buying and selling financial assets (stocks, bonds, government debt) across borders allows investors to diversify holdings internationally.

**Labour Market**: Workers and firms choose locations for employment and production, though restricted by immigration laws. Historically seen as substitute for goods movement.

Why Exchange Rates Matter

When goods cross borders, money must be exchanged. There is no single international currency, so foreign economic agents only accept national currency if they trust it maintains stable purchasing power. Historically, governments promised convertibility into gold or other currencies at fixed prices to build confidence in their currency's international use.

With increased transaction volumes, the gold standard became impractical. Today, what matters is the **exchange rate** — the **price of one currency in terms of another currency**. For example, an Indian importer buying American goods priced at $10 needs to know how many rupees to exchange; if the exchange rate is Rs 50 per dollar, the cost is Rs 500.

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BALANCE OF PAYMENTS (BoP)

The **Balance of Payments** is a systematic record of all transactions in goods, services, and assets between residents of a country and the rest of the world during a specified period (typically one year). It comprises two main accounts: **Current Account** and **Capital Account**. A country's BoP must always balance — deficits in one account are financed by surpluses in another.

6.1.1 Current Account

The **Current Account** records transactions in goods, services, and transfer payments (gifts, remittances, grants received for free without providing goods/services).

#### Components of Current Account

**Trade in Goods** (Visible Trade):

**Exports**: Sale of domestic goods to foreign countries (credit item — money flows in)

**Imports**: Purchase of foreign goods (debit item — money flows out)

**Trade in Services** (Invisibles):

**Factor Income**: Net international earnings on factors of production (labour, land, capital) — e.g., Indian IT professionals working abroad sending wages home (credit); foreign companies' profit repatriation to headquarters (debit)

**Non-Factor Income**: Net sale of service products (shipping, banking, tourism, software services, call centers). For example, India's IT service exports and tourism receipts are non-factor income credits.

**Transfer Payments**:

Remittances from abroad

Government grants and aid received

Private gifts from relatives abroad

#### Balance of Trade (BoT)

**Balance of Trade = Exports of Goods − Imports of Goods**

**Trade Balance (Equilibrium)**: Exports = Imports (BoT = 0)

**Trade Surplus**: Exports > Imports (BoT > 0) — country is competitive exporter

**Trade Deficit**: Imports > Exports (BoT < 0) — country consuming more than producing. Example: India typically has a trade deficit in goods but a surplus in invisibles (IT services, remittances).

#### Net Invisibles

**Net Invisibles = Invisibles Received − Invisibles Paid**

This includes services trade, transfer payments, and income flows. High-income countries often have positive net invisibles due to investment income; developing countries may have negative net invisibles if they pay significant interest on foreign debt.

#### Current Account Balance

**Current Account Balance = Balance of Trade + Net Invisibles**

**Current Account Surplus**: Receipts > Payments — country is lending to rest of world (capital outflow)

**Current Account Deficit**: Receipts < Payments — country is borrowing from rest of world (needs capital inflow to finance)

**Current Account Balanced**: Receipts = Payments

Example from Table 6.1: India had exports Rs 150 million, imports Rs 240 million (trade deficit of −90), but invisibles of +52 (IT services, remittances), giving current account deficit of −38 million.

6.1.2 Capital Account

The **Capital Account** records all international transactions in assets (money, stocks, bonds, government securities, real estate, etc.).

**Debit Items**: Purchase of foreign assets (Indian investor buying UK company — foreign exchange flows out)

**Credit Items**: Sale of domestic assets to foreigners (selling Indian company shares to Chinese investor — foreign exchange flows in)

#### Components of Capital Account

**Foreign Direct Investment (FDI)**: Long-term investment in physical assets (factories, infrastructure) with control/management stake

**Foreign Institutional Investment (FII)**: Portfolio investment in stocks and bonds without management control

**External Borrowings**: Loans from foreign governments, international organizations, or private creditors

**External Assistance**: Grants and concessional loans from donor countries

#### Balance on Capital Account

**Capital Account Surplus**: Capital inflows > Capital outflows (net foreign investment flowing in)

**Capital Account Deficit**: Capital inflows < Capital outflows (net capital leaving country)

6.1.3 Balance of Payments Equilibrium and Deficits

The fundamental BoP identity is:

**Current Account + Capital Account ≡ 0**

This means: **Current Account Deficit = Capital Account Surplus** (financing gap)

A country with current account deficit (spending more abroad than earning) must finance it through:

1. **Capital Account Surplus** — borrowing or selling assets to foreigners

2. **Drawing Down Foreign Exchange Reserves** — RBI sells foreign currency held as reserves (official reserve sale)

#### Example

India has current account deficit of −38 million (Table 6.1) but capital account surplus of +41.15 million. The capital inflows (FDI, FII, external borrowing) finance the current deficit, resulting in overall BoP balance = 0.

#### Official Reserve Transactions

Under **fixed exchange rate** regimes (less common now), the central bank intervenes by buying/selling foreign exchange to maintain the fixed rate. Under **floating exchange rates** (more common), reserves stabilize temporary imbalances.

**Overall BoP Deficit**: When autonomous transactions show deficit (remedied by drawing reserves or accommodating transactions). Reserve Change > 0 indicates reserve depletion.

**Overall BoP Surplus**: Autonomous surplus leading to reserve accumulation. Reserve Change < 0 indicates reserve buildup.

#### Autonomous vs. Accommodating Transactions

**Autonomous Transactions** ("Above the Line"): Independent of BoP status; made for profit/consumption (trade, FDI, loans to finance business)

**Accommodating Transactions** ("Below the Line"): Determined by BoP gap to restore equilibrium (official reserve movements, central bank intervention)

#### Errors and Omissions

A third BoP element reflecting recording gaps — not all international transactions are perfectly documented.

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FOREIGN EXCHANGE MARKET

The **Foreign Exchange Market** (Forex Market) is where national currencies are traded for one another. Major participants are commercial banks, foreign exchange brokers, authorized dealers, and monetary authorities. The market is worldwide with continuous contact between trading centers across time zones (London, New York, Tokyo, Mumbai).

6.2.1 Foreign Exchange Rate (Forex Rate)

**Foreign Exchange Rate = Price of one currency in terms of another currency**

Example: If **Rs 50 per 1 USD**, then the exchange rate (e) = 50. This links different countries' currencies and enables cost/price comparisons internationally.

#### Demand for Foreign Exchange

People demand foreign exchange to:

Purchase goods and services from other countries (import spending)

Send gifts or remittances abroad

Buy financial assets of foreign countries

**Law of Demand applies**: When exchange rate rises (rupee depreciates — more rupees needed per dollar), foreign goods become more expensive in rupees, so demand for imports and foreign exchange **decreases**. Conversely, depreciation makes exports cheaper to foreigners, increasing exports but decreasing import demand.

#### Supply of Foreign Exchange

Foreign currency flows in due to:

**Exports**: Foreigners buy domestic goods, paying with their currency

**Transfers**: Remittances, foreign aid, grants

**Asset Sales**: Foreigners buying domestic company shares, real estate

**Law of Supply applies**: When exchange rate rises (more rupees per dollar), Indian goods become cheaper in dollars, encouraging more exports and increasing supply of foreign exchange. However, the actual supply response depends on **elasticity of demand for exports and imports**.

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6.2.2 Determination of Exchange Rate

Different exchange rate regimes exist:

#### Flexible Exchange Rate (Floating)

**Exchange rate determined purely by market forces of demand and supply.**

The equilibrium exchange rate is where Demand for Foreign Exchange = Supply of Foreign Exchange. The central bank does **not intervene**.

**Graphical Analysis** (Figure 6.2 described):

X-axis: Quantity of foreign currency (e.g., dollars)

Y-axis: Exchange rate (Rs per dollar)

Demand curve: Downward sloping (higher exchange rate → lower demand for imports)

Supply curve: Upward sloping (higher exchange rate → higher export earnings)

Equilibrium: Point where curves intersect determines exchange rate (e*)

**Example**: If initial exchange rate e₀ = Rs 50 per dollar, but Indian demand for foreign goods increases (tourism, imports rise), demand curve shifts rightward. New equilibrium e₁ = Rs 70 per dollar.

#### Depreciation vs. Appreciation

**Depreciation of Domestic Currency**:

Exchange rate **increases** (e.g., Rs 50 → Rs 70 per dollar)

Rupee becomes **weaker** — needs more rupees for same dollar

**Causes**: Increased import demand, decreased export supply, capital outflows

**Effects**: Makes Indian exports cheaper (boost exports), makes imports expensive (discourage imports)

Example: When rupee depreciated from Rs 45 to Rs 80 per dollar during 2008-09 financial crisis, Indian IT exports became more competitive globally.

**Appreciation of Domestic Currency**:

Exchange rate **decreases** (e.g., Rs 70 → Rs 50 per dollar)

Rupee becomes **stronger** — needs fewer rupees for same dollar

**Causes**: Increased export demand, foreign investment inflow (capital surplus)

**Effects**: Makes Indian exports expensive (hurts exports), makes imports cheap (encourage imports)

Example: When rupee appreciated post-2003 due to FDI inflows, Indian exporters faced headwinds.

#### Speculation and Forex Rates

Currency is treated as an asset. If investors expect the British pound to appreciate (e.g., currently Rs 80 per pound, expected to be Rs 85 next month), they will:

Increase **demand for pounds today** — exchange Rs 80,000 for 1,000 pounds expecting to exchange at Rs 85 later, earning Rs 5,000 profit

This increased demand **drives pound appreciation in the present**, making expectations self-fulfilling

Similarly, pessimism about currency triggers selling, causing depreciation

This speculative behavior creates volatility in forex markets and can amplify exchange rate movements.

#### Interest Rates and Exchange Rate

In the short run, **interest rate differentials** (difference in interest rates between countries) significantly affect exchange rates.

Large pools of funds (banks, multinational corporations, wealthy investors) flow toward highest interest rates. If:

**Indian interest rates > US interest rates**: Foreign investors buy Indian assets, demanding rupees → rupee appreciates

**Indian interest rates < US interest rates**: Indian investors buy US assets, supplying rupees → rupee depreciates

Forex traders continuously compare risk-adjusted returns across countries, making interest rate differentials a major driver of short-term forex movements. This is more important than trade flows for short-term exchange rate determination.

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KEY EXAM POINTS

**Definitions to memorize**:

Open economy = trades goods, services, assets with rest of world

Exchange rate = price of one currency in terms of another

Current account = trade + invisibles + transfers

Capital account = asset transactions

Trade balance = exports − imports of goods

Depreciation = exchange rate increase (domestic currency weaker)

Appreciation = exchange rate decrease (domestic currency stronger)

**BoP Identity**: Current Account + Capital Account ≡ 0 (deficits financed by surpluses)

**India Context**: Persistent trade deficit but current account near-balance due to large invisibles surplus (IT services, remittances worth ~$90 billion annually).

**Flexible Exchange**: Determined by D and S forces; appreciates with export boom or FDI inflow; depreciates with import surge or capital outflows.

**Chapter ends with interest rates section incomplete in provided text.**