Capital Flows and Exchange Rates

Net capital outflows occur when outward investment flows exceed inward investment flows over a period. Under a floating exchange rate, the currency’s value is determined by demand and supply in the foreign exchange market, so net capital outflows generally create depreciation pressure, other things remaining unchanged.

How capital outflows weaken the currency

Investors moving funds abroad generally need foreign currency to purchase overseas assets. Their transactions increase demand for foreign currency relative to the domestic currency.

• When residents exchange rupees to acquire foreign assets, they increase the supply of rupees in the foreign exchange market.
• When foreign investors sell domestic assets and convert the proceeds into foreign currency, their withdrawal similarly creates demand for foreign currency.
• Other things being equal, the market adjusts through currency depreciation: more units of domestic currency are required to buy one unit of foreign currency.
• For example, a rise in the rupee-dollar exchange rate from ₹80 to ₹85 per US dollar represents rupee depreciation, not appreciation.

What determines the extent of depreciation

Capital outflows do not imply a fixed or inevitable percentage fall in the exchange rate. The outcome depends on the size of the flows relative to other foreign exchange transactions and on investors’ responses.

• Foreign exchange receipts from exports or other inflows can offset the pressure created by capital outflows.
• Expectations matter: anticipated depreciation may encourage further withdrawals or discourage new investment, reinforcing downward pressure on the currency.
• Changes in interest rates, perceived investment risk and expected returns can alter investors’ willingness to hold domestic assets.
• In a managed float, central bank intervention, such as selling foreign exchange reserves and buying domestic currency, can moderate depreciation pressure.

Economic consequences and adjustment

Depreciation changes the domestic-currency cost of international transactions, transmitting the effects of capital outflows to the wider economy.

• Imports become costlier in domestic currency, potentially raising production costs and inflation.
• Domestic goods may become more competitive relative to foreign goods, but an improvement in the trade balance depends on how export and import quantities respond.
• For borrowers with unhedged foreign-currency debt, depreciation increases the domestic-currency burden of servicing that debt.