The Exchange Rate and the Balance of Payments

The Exchange Rate and the Balance of Payments

Introduction

This chapter explores the determination of exchange rates, the functioning of the foreign exchange market, the effects of exchange rate policies, and the structure and implications of the balance of payments. Understanding these concepts is essential for analyzing international economic interactions and macroeconomic policy.

The Foreign Exchange Market

Definition and Function

• Foreign Exchange Market: The market where the currency of one country is exchanged for the currency of another.

• Foreign Currency: Includes foreign bank notes, coins, and bank deposits.

• Facilitates international trade by allowing the purchase of foreign goods and services.

Exchange Rates

• Exchange Rate: The price at which one currency exchanges for another.

• Currency Depreciation: A fall in the value of one currency in terms of another.

• Currency Appreciation: A rise in the value of one currency in terms of another.

Market Determination of Exchange Rates

• Exchange rates are determined by demand and supply in a competitive market with many traders.

• The demand for one currency is the supply of another.

Demand in the Foreign Exchange Market

Determinants of Demand

• The quantity of Canadian dollars demanded depends on:

  • The exchange rate

  • World demand for Canadian exports

  • Interest rates in Canada and other countries

  • The expected future exchange rate

The Law of Demand for Foreign Exchange

• The higher the exchange rate, the smaller the quantity of Canadian dollars demanded.

• Demand is influenced by:

  • Exports Effect: Higher exports increase demand for Canadian dollars.

  • Expected Profit Effect: Higher expected profits from holding Canadian dollars increase demand.

Supply in the Foreign Exchange Market

Determinants of Supply

• The quantity of Canadian dollars supplied depends on:

  • The exchange rate

  • Canadian demand for imports

  • Interest rates in Canada and other countries

  • The expected future exchange rate

The Law of Supply of Foreign Exchange

• The higher the exchange rate, the greater the quantity of Canadian dollars supplied.

• Supply is influenced by:

  • Imports Effect: Higher imports increase supply of Canadian dollars.

  • Expected Profit Effect: Lower expected profits from holding Canadian dollars increase supply.

Market Equilibrium

Determination of the Exchange Rate

• The equilibrium exchange rate is where the quantity of Canadian dollars demanded equals the quantity supplied.

• If the exchange rate is too high, a surplus of Canadian dollars drives it down.

• If the exchange rate is too low, a shortage drives it up.

Exchange Rate Fluctuations

Changes in Demand and Supply

• Factors shifting demand:

  • World demand for Canadian exports

  • Canadian interest rate differential

  • Expected future exchange rate

• Factors shifting supply:

  • Canadian demand for imports

  • Canadian interest rate differential

  • Expected future exchange rate

Summary of Exchange Rate Changes

• If demand increases (supply constant), exchange rate rises.

• If demand decreases (supply constant), exchange rate falls.

• If supply increases (demand constant), exchange rate falls.

• If supply decreases (demand constant), exchange rate rises.

Exchange Rate Policy

Types of Exchange Rate Policies

• Flexible Exchange Rate: Determined by market forces without central bank intervention.

• Fixed Exchange Rate: Pegged by the government or central bank, requiring intervention to maintain the target rate.

• Crawling Peg: The exchange rate follows a path set by the government or central bank, with periodic adjustments.

Financing International Trade: The Balance of Payments

Balance of Payments Accounts

• Current Account: Records exports, imports, net interest income, and net transfers.

• Capital and Financial Account: Records foreign investment in Canada minus Canadian investment abroad.

• Official Settlements Account: Records changes in official reserves (government holdings of foreign currency).

Account	Billions of dollars
Exports of goods and services	+629
Imports of goods and services	-677
Net interest income	-16
Net transfers	-3
Current account balance	-67
Net foreign investment in Canada	+74
Statistical discrepancy	0
Capital and financial account balance	+74
Official settlements account balance	-7

Key Concepts

• The sum of the balances of the three accounts always equals zero.

• Net Borrower: A country borrowing more from the rest of the world than it lends.

• Net Lender: A country lending more to the rest of the world than it borrows.

• Debtor Nation: Has borrowed more than it has lent over its history.

• Creditor Nation: Has invested more abroad than others have invested in it.

Current Account Balance and Sector Balances

• The current account balance (CAB) is given by:

$CAB = NX + \text{Net interest income} + \text{Net transfers}$

• Net exports (NX) is the main item in the current account balance.

• Government sector balance: $T - G$ (net taxes minus government spending)

• Private sector balance: $S - I$ (saving minus investment)

• Net exports identity:

$NX = (T - G) + (S - I)$

• For Canada in 2016:

  • Net exports: –$48 billion

  • Government sector balance: –$38 billion

  • Private sector balance: –$10 billion

• Net exports equals the sum of the government sector balance and the private sector balance.

Application and Implications

• Being a net borrower is sustainable if funds are used for capital accumulation (increasing future income).

• It is problematic if borrowing finances only consumption.

Additional info: The above notes integrate textbook-level explanations, definitions, and examples to ensure a comprehensive understanding of exchange rates and the balance of payments, as required for macroeconomics students.