Currency appreciation

Topic: Balance of Payments and Exchange Rates · NCERT: Class 12, Ch 6 "Open Economy Macroeconomics"

Meaning

Currency appreciation means the home currency gains value against a foreign currency through market forces under a flexible (floating) exchange rate, so you need fewer rupees to buy one dollar. For example, the rate moves from ₹70 per $ to ₹50 per $.

• Direct quote (the rupee price of one dollar): appreciation shows up as a fall in the number, for example ₹70 → ₹50.
• Why it matters: appreciation makes imports cheaper and exports costlier. So it affects inflation, especially from imported oil. It also affects exporters' earnings, the trade balance and how the RBI manages the rupee.

Explanation

How appreciation happens under a float

• Under a flexible exchange rate, the rate settles where the demand for dollars equals the supply of dollars. There is no central bank intervention.
• The rupee appreciates when:
• more dollars come in, so supply rises, or

• fewer dollars are wanted, so demand falls.

• Chain when supply rises:

• Foreign investors buy Indian shares and bonds, or exports and remittances rise.
• More dollars come into India.
• At the old rate there are more dollars than people want to buy.

• The dollar's rupee price falls, for example from ₹70 to ₹50. The rupee has appreciated.

• Chain when demand falls:

• Indians import less or travel abroad less.
• Demand for dollars falls.
• The dollar gets cheaper, and the rupee appreciates.

What makes the currency appreciate in the short run (Class 12)

Over the long run, trade matters. In the short run, capital flows, expectations and interest rates move the rate.

• Interest rate differential (the gap between interest rates in two countries):
• Bonds pay 8% in country A and 10% in country B.
• Investors sell A's currency and buy B's to earn the higher return.
• B's currency appreciates and A's depreciates.

• Rule: a rise in home interest rates tends to appreciate the home currency. This assumes free capital movement. If capital controls block the flow, the effect is weaker.

• Speculation (holding a currency in the hope that its value will rise):

• Many investors expect a currency to rise, so they all buy it today.
• Demand rises today, so the currency rises today.

• The expectation fulfils itself.

• Income:

• If a country's aggregate demand (total spending in the economy) grows faster than the world's, its imports rise faster and its currency usually depreciates.
• The reverse also holds. If the world grows faster than the home economy, foreigners buy more of the home country's exports, and the home currency tends to appreciate.

Worked example: effects and the percentage trap

• Effect on imports: a $100 import costs ₹7,000 at ₹70/$. At ₹50/$ it costs only ₹5,000, so imports become cheaper.
• Effect on exports: a ₹600 Indian good costs a foreigner $10 at ₹60/$. At ₹50/$ it costs $12, so Indian exports become costlier abroad.
• Percentage trap (₹70 → ₹50 per $):
• The dollar falls (70 − 50)/70 = about 28.6% in rupee terms.
• The rupee's dollar value rises from $0.0143 to $0.0200, a rise of 40%.
• The two percentages are not equal, because the base of the calculation is different.

A world example: the yen in 2024

• Carry trade means borrowing in a low-interest currency such as the yen and investing in higher-yield assets elsewhere.
• What happened in 2024:
• The Bank of Japan raised rates on 31 July 2024, and weak US jobs data came out on 2 August 2024. The dollar–yen interest gap narrowed, and the yen appreciated sharply [5].
• Investors rushed to repay their yen loans. This was a large unwinding of carry trades (investors closing these bets all at once) [5].
• Japan's Nikkei fell 12% in one day, its biggest one-day move since 1987 [5].

• By mid-August the yen was steady near 140 per dollar [5].

• Lesson: a sudden, sharp appreciation can shake financial markets. The sell-off spread to global markets, including India.

In India

• Market-set rate since 1993:
• March 1992: the Liberalised Exchange Rate Management System (LERMS) started, with a dual rate: one official rate and one market rate [6].

• 1 March 1993: India moved to a single, market-determined exchange rate. Since then the rupee can appreciate or depreciate through demand and supply [6].

• Managed float today: the market sets the rate, but the RBI steps in.

• The RBI says it intervenes only to curb excessive volatility (sharp swings in the rate) [2].
• Its tools are spot buying and selling, forwards and swaps, including "sell-buy" swaps [2].

• When heavy dollar inflows push the rupee up too fast, the RBI can buy dollars to slow the appreciation. These dollars add to India's forex reserves.

• IMF labels: India's de jure regime (what the law says) is floating. Its de facto regime (what the IMF sees in practice) is a crawl-like arrangement (2025 Article IV) [3].

• 2023 dispute: IMF staff reclassified India's de facto regime for December 2022–October 2023. The Indian authorities disagreed. They said the stable rupee reflected a stronger external position [4].
• Market size: rupee OTC turnover was $122 billion a day (April 2022). OTC means deals made directly between two parties, not on an exchange. Over 60% of this was offshore, meaning deals made outside India [2]. So offshore trading can also push the rupee up or down.

Don't confuse with

• Currency depreciation: the opposite. The home currency loses value and more rupees are needed per dollar (₹50 → ₹70).
• Revaluation: an official increase in a fixed or pegged rate, decided by the government or central bank. Appreciation is market-driven, under a float. (The pair mirrors depreciation vs devaluation.)
• Dollar's fall vs rupee's rise: at ₹70 → ₹50, the dollar falls about 28.6%, but the rupee rises 40%. Always check the base.
• Direct vs indirect quote: under a direct quote (₹ per $), appreciation means the number falls. Under an indirect quote ($ per ₹), the number rises ($0.0143 → $0.0200).

Prelims Hooks

• ₹70 → ₹50 per $ is rupee appreciation. Under a direct quote, a lower number means a stronger rupee.
• Appreciation is market-driven (float). An official rise in a pegged rate is revaluation.
• A rise in home interest rates → the home currency appreciates, assuming free capital movement.
• Appreciation makes imports cheaper and exports costlier for foreigners.
• India has had a unified, market-determined rate since 1 March 1993 [6]. The IMF's de facto label for India is a crawl-like arrangement, while the de jure label is floating [3].
• Yen appreciation after the BoJ hike on 31 July 2024 triggered a carry-trade unwind, and the Nikkei fell 12% in one day [5].

Mains Points

• Appreciation is a trade-off, not a win:
• Cheaper imports reduce imported inflation. This matters for India, which imports a lot of oil.
• But costlier exports hurt export industries and can widen the trade deficit.

• So the RBI often buys dollars during heavy inflows to slow a sharp appreciation. Too much smoothing, though, can look like a hidden peg to outsiders, as the IMF's 2023 reclassification shows [4].

• Interest rates and the rupee are linked (impossible trinity):

• A repo rate hike (the RBI raising the rate at which it lends to banks for a short time) attracts foreign capital and tends to appreciate the rupee.

• Under free capital movement, the RBI cannot freely target both the interest rate and the exchange rate at the same time.

• Sudden appreciation can be destabilising:

• The 2024 yen episode shows that a sharp rise in a currency can unwind carry trades and spread panic across markets [5].
• This supports the RBI's focus on curbing excessive volatility rather than defending a fixed level [2].

Related concepts

• Foreign exchange market
• Foreign exchange
• Foreign exchange rate
• Demand for foreign exchange
• Supply of foreign exchange
• Flexible exchange rate
• Currency depreciation
• Currency speculation
• Interest rate differential
• Interest rate parity

Read more

• The foreign exchange market and short-run exchange-rate determination