Forex Market Fundamentals and Exchange-Rate Determinants – CAIIB BFM

Introduction

The foreign exchange market, commonly called the forex or FX market, is the market in which one currency is exchanged for another. Banks, companies, governments, investors, travellers and other market participants need foreign currency for international trade, investment, borrowing, lending and remittances.

For CAIIB BFM, this is a foundation topic. The current IIBF syllabus for Bank Financial Management includes Foreign Exchange – Definition and Markets and Factors Determining Exchange Rates under Module A: International Banking.

A banker must understand not only what an exchange rate means, but also why it changes. Changes in exchange rates affect importers, exporters, foreign currency borrowers, investors, bank treasury positions and the overall economy.

In India, the rupee exchange rate is primarily determined by market demand and supply. The RBI may intervene in the forex market to reduce excessive volatility and maintain orderly market conditions rather than to maintain a permanently fixed exchange rate.

This article explains the basic structure of the forex market and the economic and market forces that influence exchange rates.

Learning Objectives

After studying this topic, you should be able to:

• Explain the meaning and purpose of the foreign exchange market.

• Identify the main participants in the forex market.

• Understand how demand and supply affect currency values.

• Explain major factors that cause appreciation or depreciation of a currency.

• Understand the role of RBI in the Indian forex market.

• Apply exchange-rate concepts to practical banking situations and CAIIB case-based questions.

What Is Foreign Exchange?

Foreign exchange broadly refers to foreign currencies and financial claims or instruments denominated in foreign currencies.

In practical banking, foreign exchange transactions arise whenever a customer has to:

• pay an overseas supplier;

• receive export proceeds;

• remit money abroad;

• receive inward remittances;

• borrow or invest in foreign currency;

• hedge a foreign currency exposure; or

• convert one currency into another.

Unlike a normal physical marketplace, the forex market is mainly an electronic network linking banks, financial institutions, brokers, corporates and other participants across financial centres.

Why Does the Forex Market Exist?

International transactions normally involve two different currencies.

For example:

• An Indian importer buying machinery from the United States may have to pay in US dollars.

• An Indian exporter selling goods to Europe may receive euros.

• An Indian company borrowing abroad may have repayment obligations in foreign currency.

• An individual sending money abroad for permitted purposes may need foreign currency.

Therefore, a mechanism is required to convert one currency into another. The forex market provides this mechanism.

It performs several important functions:

1. Currency Conversion

It enables one currency to be exchanged for another.

2. International Payments

It facilitates settlement of imports, exports, investments, remittances and other cross-border transactions.

3. Price Discovery

Continuous buying and selling help determine the market price of one currency in terms of another.

4. Risk Management

Forward contracts, swaps, options and other permitted instruments can be used to manage exchange-rate risk.

5. Liquidity

The market allows participants to buy and sell currencies required for genuine transactions as well as permitted financial activities.

Important Terms and Definitions

Structure of the Foreign Exchange Market

The forex market can be understood through different segments.

Customer or Merchant Market

This consists of transactions between banks and their customers.

Typical customers include:

• exporters;

• importers;

• companies with foreign currency borrowings;

• investors;

• travellers;

• students remitting funds abroad; and

• persons receiving or sending international remittances.

A customer's need generally arises from an underlying commercial, investment or permitted personal transaction.

Interbank Market

Banks continuously buy and sell currencies among themselves to:

• cover customer transactions;

• manage currency positions;

• obtain liquidity;

• manage mismatches; and

• undertake permitted treasury operations.

The interbank market is important because wholesale market rates influence the rates quoted by banks to customers.

Spot and Derivative Markets

The forex market includes both spot transactions and derivative transactions.

Spot transactions involve near-term delivery of currencies according to applicable market conventions.

Derivatives, such as forwards, swaps and options, derive their value from the underlying currency or exchange rate and are commonly used for managing foreign exchange risk.

Detailed derivative products are normally studied separately. For this topic, remember that the spot market establishes the current currency price while derivative markets help participants manage future currency exposure.

Major Participants in the Forex Market

Commercial Banks and Authorised Dealers

Banks are among the most important participants. They deal with customers and also transact with other banks.

Under FEMA, foreign exchange transactions in India must be undertaken through entities authorised by RBI for the relevant transactions. RBI identifies categories of Authorised Persons, including Authorised Dealer banks and other permitted entities.

Reserve Bank of India

RBI regulates and monitors the Indian foreign exchange market under the applicable legal and regulatory framework.

It may also buy or sell foreign currency in the market when required to address excessive volatility or disorderly market conditions.

Corporates

Companies enter the forex market because of:

• imports;

• exports;

• foreign currency borrowing;

• foreign investments;

• overseas subsidiaries;

• royalty or service payments; and

• other cross-border transactions.

Institutional Investors

Foreign and domestic investors generate forex demand and supply when investing in or withdrawing funds from financial markets.

Forex Brokers and Trading Platforms

They facilitate transactions and price discovery between eligible participants.

Individuals

Individuals participate for permitted transactions such as travel, education, maintenance of relatives, investments or other permissible remittances.

Resident persons are permitted to undertake forex transactions only with authorised persons and for permitted purposes under FEMA and related regulations.

How Is an Exchange Rate Determined?

An exchange rate is essentially the price of one currency in terms of another currency.

Like other market prices, it is strongly influenced by demand and supply.

Suppose the market quotation is expressed as:

USD 1 = INR 84

If the rate moves to:

USD 1 = INR 86

more rupees are now required to buy one US dollar.

Therefore:

• the US dollar has appreciated against the rupee; and

• the Indian rupee has depreciated against the US dollar.

If the rate falls from INR 84 to INR 82 per USD:

• the rupee has appreciated; and

• the dollar has depreciated against the rupee.

Demand and Supply of Foreign Currency

This is the most important foundation for understanding exchange-rate movements.

Demand for Foreign Currency

Demand for dollars or another foreign currency may increase because of:

• higher imports;

• repayment of foreign currency debt;

• outward investment;

• overseas travel and remittances;

• foreign investors withdrawing funds;

• expectations of domestic currency depreciation; or

• increased demand for globally traded commodities priced in foreign currency.

If demand for foreign currency increases substantially without a corresponding increase in supply, the foreign currency tends to strengthen against the domestic currency.

Supply of Foreign Currency

Supply of foreign currency may increase through:

• exports;

• inward remittances;

• foreign direct investment;

• foreign portfolio investment;

• external borrowing;

• overseas investors purchasing domestic assets; or

• other permitted foreign currency inflows.

Higher supply of foreign currency, other things remaining equal, can support the domestic currency.

Major Factors Determining Exchange Rates

Exchange rates are influenced by several factors acting simultaneously. CAIIB questions may give one economic development and ask for its likely impact on a currency.

1. Inflation

Inflation affects the purchasing power of a currency.

If a country continuously experiences much higher inflation than its trading partners, its goods may become relatively expensive. Imports may become more attractive while exports may lose competitiveness.

Over time, this can create pressure on the domestic currency.

In broad terms:

Higher relative inflation → possible currency depreciation

However, this should not be treated as an automatic short-term rule. Exchange rates are also affected by interest rates, capital flows, market expectations and central-bank actions.

2. Interest Rates

Interest-rate differences between countries influence international capital flows.

If domestic interest rates rise relative to foreign rates, domestic financial assets may become more attractive to investors, subject to risk, hedging cost and market expectations.

Potentially:

Higher relative interest rates → capital inflows → greater demand for domestic currency

This may support currency appreciation.

But the relationship is not guaranteed.

If interest rates are high because inflation, fiscal stress or country risk is very high, investors may still withdraw funds.

3. Balance of Trade and Current Account Position

When imports exceed exports substantially, the economy may require more foreign currency to pay for imports.

This can increase demand for foreign currency.

A large trade deficit can therefore create depreciation pressure on the domestic currency, especially when it is not financed by sufficient capital inflows.

Conversely, strong exports can increase foreign currency receipts and support the domestic currency.

For India, crude oil and other major imports can have an important impact because large import payments increase demand for foreign currency.

4. Capital Flows

Modern exchange rates are strongly influenced by international movement of capital.

Capital inflows may arise from:

• foreign direct investment;

• foreign portfolio investment;

• external borrowing; and

• investment in domestic financial assets.

Strong capital inflows generally increase the supply of foreign currency and demand for domestic currency.

Capital outflows can produce the opposite effect.

This explains why a currency can sometimes strengthen even when the country has a trade deficit: capital inflows may more than offset the trade-related foreign currency demand.

5. Economic Growth

Strong economic growth can influence a currency in different ways.

It may:

• attract foreign investment and support the currency; but

• increase imports and create additional foreign currency demand.

Therefore, CAIIB learners should avoid the simplistic statement:

“Higher GDP growth always causes currency appreciation.”

The final effect depends on trade flows, capital flows, inflation, interest rates and market expectations.

6. Fiscal Position and Government Borrowing

Large and persistent fiscal deficits can influence:

• inflation expectations;

• government borrowing;

• interest rates;

• investor confidence; and

• sovereign risk perception.

If investors become concerned about macroeconomic stability, the currency may come under pressure.

However, the effect depends on the overall economic environment and how the deficit is financed.

7. Political and Economic Stability

Currencies of countries perceived as economically and politically stable may attract investment during normal market conditions.

Uncertainty relating to:

• government policy;

• geopolitical conflict;

• financial instability;

• regulatory changes; or

• political developments

can increase risk perception and cause capital outflows.

8. Market Expectations and Speculation

Exchange rates respond not only to present conditions but also to expectations about future conditions.

Traders may react to expected changes in:

• inflation;

• interest rates;

• monetary policy;

• economic growth;

• capital flows; or

• geopolitical developments.

Therefore, a currency can move even before an expected event actually occurs.

This is an important exam concept: markets often respond to the difference between actual developments and existing expectations, not merely to the event itself.

9. Central-Bank Policy and Intervention

Central banks influence exchange rates through:

• monetary policy;

• liquidity conditions;

• interest-rate signals;

• communication; and

• direct or indirect forex-market intervention.

In India, the rupee has operated under a market-determined exchange-rate system since March 1993. RBI's stated approach is to maintain orderly forex-market conditions and contain excessive volatility rather than target a particular exchange-rate level.

If RBI sells foreign currency such as US dollars into the market, it can increase dollar supply and meet excess demand.

If RBI purchases dollars, it adds to demand for dollars while supplying rupees.

However, an RBI transaction should not automatically be interpreted as establishing a fixed exchange rate.

10. Global Strength or Weakness of Major Currencies

A domestic currency does not move only because of domestic developments.

For example, the US dollar may strengthen globally due to:

• tighter US monetary policy;

• stronger US economic data;

• global risk aversion; or

• movement of funds toward dollar assets.

In such a situation, several currencies may depreciate against the dollar simultaneously.

Therefore, depreciation of INR against USD does not necessarily mean that only Indian economic conditions have worsened.

11. Commodity and Crude-Oil Prices

Commodity prices can significantly affect currencies of importing and exporting countries.

India is a major importer of crude oil. A sharp increase in international crude-oil prices can increase the country's foreign currency requirement for imports.

Other factors remaining unchanged:

Higher oil import bill → higher demand for foreign currency → possible pressure on INR

The actual impact depends on capital inflows, export receipts, RBI actions and broader market conditions.

12. Geopolitical Events and Risk Sentiment

Wars, financial crises, trade tensions and other global shocks can cause investors to reduce exposure to assets considered risky.

Such risk-off behaviour can lead to:

• capital outflows from emerging markets;

• demand for highly liquid international currencies;

• increased exchange-rate volatility.

This is why exchange rates may change sharply even when domestic economic data has not changed.

Interaction of Exchange-Rate Determinants

A common CAIIB mistake is to analyse one factor in isolation.

Consider the following situation:

• crude-oil prices rise;

• India's import bill increases;

• foreign investors also invest heavily in Indian markets;

• RBI intervenes to manage volatility.

Higher oil prices may create depreciation pressure, while capital inflows may support the rupee. RBI operations may further affect short-term market conditions.

The final exchange-rate movement will depend on the net effect of all these forces.

Appreciation vs Depreciation

These are broad effects. Actual profitability also depends on contract pricing, hedging, imported inputs, competition and other factors.

Practical Banking Application

Consider an Indian company importing machinery worth USD 1 million, payable after three months.

Suppose the rupee starts weakening.

For the importer, each dollar may require more rupees at the payment date. Therefore, its rupee cost can increase.

A bank handling the customer should understand:

• the customer's foreign currency exposure;

• the expected payment date;

• the effect of exchange-rate movements;

• the customer's risk-management requirements; and

• the applicable RBI/FEMA framework.

Now consider an exporter expecting USD receipts.

A weaker rupee can increase the rupee equivalent of the export proceeds. However, the exporter should not simply speculate on future exchange-rate movements because business cash flows and margins can become uncertain.

The bank's role is not merely currency conversion. It also involves transaction processing, compliance, treasury management and permitted risk-management solutions.

CAIIB Exam Focus

Demand and Supply Logic

Be able to identify whether a transaction creates:

• demand for foreign currency; or

• supply of foreign currency.

Examples:

Import payment → demand for foreign currency.

Export receipt → supply of foreign currency.

Foreign investment into India → foreign currency inflow and potential support for INR.

Foreign investor exit → conversion into foreign currency and potential pressure on INR.

Currency Movement Interpretation

If USD/INR rises:

• USD appreciates;

• INR depreciates.

If USD/INR falls:

• USD depreciates;

• INR appreciates.

Multiple Factors

Case studies may deliberately provide conflicting forces.

For example:

• rising interest rates may attract capital;

• but high inflation may weaken confidence;

• rising crude prices may increase dollar demand;

• FPI inflows may provide dollar supply.

Do not select an answer based on one factor without considering the others.

Market-Determined Rupee

Remember the distinction:

Market determined does not mean RBI is absent from the market.

The rupee is market determined, while RBI may intervene to contain excessive volatility and maintain orderly conditions.

Current Account vs Capital Flows

Trade transactions generate important current-account forex demand and supply, while investments and borrowing generate capital or financial flows.

A trade deficit does not automatically mean immediate currency depreciation if sufficient capital inflows are available.

Common Exam Traps

Trap 1: Higher Interest Rate Always Means Stronger Currency

Incorrect.

Higher rates may attract capital, but inflation, risk and future expectations also matter.

Trap 2: Higher Economic Growth Always Causes Appreciation

Incorrect.

Growth may attract investment but may also increase imports.

Trap 3: Trade Deficit Automatically Causes Depreciation

Not necessarily.

Capital inflows can finance the deficit and support the domestic currency.

Trap 4: RBI Fixes the Daily USD/INR Exchange Rate

Incorrect.

India operates a market-determined exchange-rate system. RBI can intervene to manage excessive volatility and orderly conditions, but it does not maintain a permanently fixed INR/USD rate.

Trap 5: Currency Depreciation Is Always Bad

Incorrect.

Depreciation can increase import costs and foreign currency debt servicing, but exporters receiving foreign currency may receive more domestic currency.

The effect differs across economic participants.

Trap 6: Currency Appreciation Is Always Good

Incorrect.

It can reduce import costs but may reduce export competitiveness or the domestic currency value of export receipts.

Trap 7: Exchange Rates Depend Only on Trade

Incorrect.

Modern forex markets are heavily influenced by capital flows, monetary policy, expectations, global risk sentiment and financial-market developments.

Trap 8: Every Forex Transaction Can Be Undertaken With Any Counterparty

Incorrect.

Under FEMA, resident persons must undertake forex transactions with authorised persons and for permitted purposes.

Trap 9: A Currency Moves Only After Economic Data Is Released

Incorrect.

Markets continuously price expectations. Exchange rates can move before an event if participants anticipate it.

Memory Techniques

Remember the Main Exchange-Rate Drivers: IIT CAPER

I – Inflation

I – Interest rates

T – Trade flows

C – Capital flows

A – Authorities/Central-bank action

P – Political and economic stability

E – Expectations

R – Risk sentiment

Use this only as a memory aid. In the exam, always analyse the actual facts provided in the question.

Remember Import and Export Currency Flow

Imports Demand FX

An importer normally needs foreign currency to make overseas payment.

Exports Supply FX

An exporter receiving foreign currency adds to the potential supply of foreign exchange when proceeds are converted.

This simple demand-supply logic is the starting point for many CAIIB forex case studies.