1 of 58 PART V The World Economy © 2012 Pearson Education, Inc. Publishing as Prentice Hall...

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© 2012 Pearson Education, Inc. Publishing as Prentice Hall Prepared by: Fernando Quijano & Shelly Tefft

CASE FAIR OSTER

P R I N C I P L E S O F

MACROECONOMICST E N T H E D I T I O N

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© 2012 Pearson Education, Inc. Publishing as Prentice Hall

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CHAPTER OUTLINE

20Open-Economy Macroeconomics:

The Balance of Payments and

Exchange RatesThe Balance of Payments

The Current AccountThe Capital AccountThe United States as a Debtor Nation

Equilibrium Output (Income) in an Open EconomyThe International Sector and Planned Aggregate ExpenditureImports and Exports and the Trade Feedback EffectImport and Export Prices and the Price Feedback Effect

The Open Economy with Flexible Exchange RatesThe Market for Foreign ExchangeFactors That Affect Exchange RatesThe Effects of Exchange Rates on the Economy

An Interdependent World Economy

Appendix: World Monetary Systems Since 1900

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When people in countries with different currencies buy from and sell to each other, an exchange of currencies must also take place.

exchange rate The price of one country’s currency in terms of another country’s currency; the ratio at which two currencies are traded for each other.

Within a certain range of exchange rates, trade flows in both directions, is mutually beneficial, and each country specializes in producing the goods in which it enjoys a comparative advantage.

In 1971, most countries, including the United States, began allowing exchange rates to be determined essentially by supply and demand.

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The study of exchange rates is very important because:

a. Exchange rates determine the course of monetary policy.

b. Exchange rates strongly influence interest rates.

c. Exchange rates are a factor in determining the flow of international trade.

d. All of the above.

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The study of exchange rates is very important because:

a. Exchange rates determine the course of monetary policy.

b. Exchange rates strongly influence interest rates.

c.c. Exchange rates are a factor in determining the flow of Exchange rates are a factor in determining the flow of international trade.international trade.


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foreign exchange All currencies other than the domestic currency of a given country.

balance of payments The record of a country’s transactions in goods, services, and assets with the rest of the world; also the record of a country’s sources (supply) and uses (demand) of foreign exchange.

The Balance of Payments

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Colombian purchases of real estate in Miami:

a. Increase the U.S. supply of foreign exchange.

b. Increase the U.S. demand for foreign exchange.

c. Decrease the U.S. supply of foreign exchange.

d. Decrease the U.S. demand for foreign exchange.

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Colombian purchases of real estate in Miami:

a.a. Increase the U.S. supply of foreign exchange.Increase the U.S. supply of foreign exchange.

b. Increase the U.S. demand for foreign exchange.

c. Decrease the U.S. supply of foreign exchange.

d. Decrease the U.S. demand for foreign exchange.

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balance of trade A country’s exports of goods and services minus its imports of goods and services.

trade deficit Occurs when a country’s exports of goods and services are less than its imports of goods and services.

balance on current account Net exports of goods plus net exports of services plus net investment income plus net transfer payments.


The Current Account

balance on capital account In the United States, the sum of the following (measured in a given period): the change in private U.S. assets abroad, the change in foreign private assets in the United States, the change in U.S. government assets abroad, and the change in foreign government assets in the United States.

The Capital Account

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–2.9(11) Net capital account transactions

0(13) Balance of payments (5 + 10 + 11 + 12)

224.9(12) Statistical discrepancy

197.9(10) Balance on capital account (6 + 7 + 8 + 9)

447.6(9) Change in foreign government assets in the United States

489.6(8) Change in U.S. government assets abroad (increase is –)

–12.3(7) Change in foreign private assets in the United States

–727.0(6) Change in private U.S. assets abroad (increase is –)Capital Account

–419.9(5) Balance on current account (1 + 2 + 3 + 4)

–130.2(4) Net transfer payments

89.0(3) Net investment income

–472.2Income payments on investments

561.2Income received on investments

138.4(2) Net export of services

–370.8Imports of services

509.2Exports of services

–517.1(1) Net export of goods

–1,562.6Goods imports

1,045.5Goods exportsCurrent Account Billions of dollars

TABLE 20.1 United States Balance of Payments, 2009

All transactions that bring foreign exchange into the United States are credited (+) to the current account; all transactions that cause the United States to lose foreign exchange are debited (−) to the current account

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Prior to the mid-1970s, the United States had generally run current account surpluses, and thus its net wealth position was positive. It was a creditor nation. Sometime between the mid-1970s and the mid-1980s, the United States reversed its net wealth position vis-à-vis the rest of the world, and was running large current account deficits.

Now it is the largest debtor nation in the world.

This reflects the fact that for the past three decades, it has spent much more on foreign goods and services than it has earned through the sales of its goods and services to the rest of the world.


The United States as a Debtor Nation

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When a nation has spent more on foreign goods and services than it has earned through the sales of its goods and services to the rest of the world, its net wealth position vis-à-vis the rest of the world must have:

a. Increased.

b. Decreased.

c. Remained the same.

d. Either increased or decreased, depending on changes in the capital account.

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When a nation has spent more on foreign goods and services than it has earned through the sales of its goods and services to the rest of the world, its net wealth position vis-à-vis the rest of the world must have:

a. Increased.

b.b. Decreased.Decreased.


d. Either increased or decreased, depending on changes in the capital account.

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If the balance on capital account is positive, the net wealth position of a country has:

a. Increased.

b. Decreased.


d. Either increased or decreased, depending on other changes in the balance of payments account.

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If the balance on capital account is positive, the net wealth position of a country has:

a. Increased.

b.b. Decreased.Decreased.


d. Either increased or decreased, depending on other changes in the balance of payments account.

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Trade gaps, or deficits, occur when a country’s imports of goods and services outweigh its exports.

These trade gaps can change because an entrepreneur from one country invents and produces something that generates big sales abroad or because imports from one country have a big price change.

France’s trade deficit narrowed as the price of importing oil shrunk while sales of one of its export goods—the Airbus—grew.

The Composition of Trade Gaps

E C O N O M I C S I N P R A C T I C E

French Trade Gap Narrowed Sharply in 2009

The Wall Street Journal

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Planned aggregate expenditure in an open economy:AE ≡ C + I + G + EX − IM

net exports of goods and services (EX − IM) The difference between a country’s total exports and total imports.

marginal propensity to import (MPM) The change in imports caused by a $1 change in income.

IM mY

Equilibrium Output (Income) in an Open Economy

The International Sector and Planned Aggregate Expenditure

Determining the Level of Imports

When income rises, imports tend to go up. Algebraically,

where Y is income and m is some positive number.

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Solving for Equilibrium

In a., planned investment spending (I), government spending (G), and total exports (EX) are added to consumption (C) to arrive at planned aggregate expenditure. However, C + I + G + EX includes spending on imports.

In b., the amount imported at every level of income is subtracted from planned aggregate expenditure. Equilibrium output occurs at Y* = 200, the point at which planned domestic aggregate expenditure crosses the 45-degree line.

FIGURE 20.1 Determining Equilibrium Output in an Open Economy

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)(1

1multipliereconomy -open

MPMMPC

The effect of a sustained increase in government spending (or investment) on income—that is, the multiplier—is smaller in an open economy than in a closed economy.

The reason: When government spending (or investment) increases and income and consumption rise, some of the extra consumption spending that results is on foreign products and not on domestically produced goods and services.



The Open-Economy Multiplier

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The open-economy multiplier is:

a. Larger than the closed-economy multiplier.

b. Smaller than the closed-economy multiplier.

c. The same as the closed-economy multiplier.

d. Zero because imports and exports cancel each other out.

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The open-economy multiplier is:

a. Larger than the closed-economy multiplier.

b.b. Smaller than the closed-economy multiplier.Smaller than the closed-economy multiplier.

c. The same as the closed-economy multiplier.

d. Zero because imports and exports cancel each other out.

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The same factors that affect households’ consumption behavior and firms’ investment behavior are likely to affect the demand for imports.

The relative prices of domestically produced and foreign-produced goods also determine spending on imports.

The demand for U.S. exports depends on economic activity in the rest of the world as well as on the prices of U.S. goods relative to the price of rest-of-the-world goods.

When foreign output increases, U.S. exports tend to increase. U.S. exports also tend to increase when U.S. prices fall relative to those in the rest of the world.


Imports and Exports and the Trade Feedback Effect

The Determinants of Imports

The Determinants of Exports

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trade feedback effect The tendency for an increase in the economic activity of one country to lead to a worldwide increase in economic activity, which then feeds back to that country.

An increase in U.S. imports increases other countries’ exports, which stimulates those countries’ economies and increases their imports, which increases U.S. exports, which stimulates the U.S. economy and increases its imports, and so on. This is the trade feedback effect.

In other words, an increase in U.S. economic activity leads to a worldwide increase in economic activity, which then “feeds back” to the United States.


Imports and Exports and the Trade Feedback Effect

The Trade Feedback Effect

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During recessions, people in many countries become more protectionist and seek to protect jobs in their own home industries by limiting imports.

The figure below shows the rise in trade levels in the world over the period 2005 to the middle of 2008 followed by large declines in the 2008–2009 recession.

The Recession Takes Its Toll on Trade


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price feedback effect The process by which a domestic price increase in one country can “feed back” on itself through export and import prices. An increase in the price level in one country can drive up prices in other countries. This in turn further increases the price level in the first country.

Export prices of other countries affect U.S. import prices. A country’s export prices tend to move fairly closely with the general price level in that country.

The general rate of inflation abroad is likely to affect U.S. import prices. If the inflation rate abroad is high, U.S. import prices are likely to rise.


Import and Export Prices and the Price Feedback Effect

The Price Feedback Effect

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If the inflation rate in Colombia is high, the prices of Colombian exports will ___________, and U.S import prices are likely to _________.

a. increase; rise

b. increase; fall

c. decrease; rise

d. decrease; fall

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If the inflation rate in Colombia is high, the prices of Colombian exports will ___________, and U.S import prices are likely to _________.

a.a. increase; riseincrease; rise

b. increase; fall

c. decrease; rise

d. decrease; fall

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floating, or market-determined, exchange rates Exchange rates that are determined by the unregulated forces of supply and demand.

Governments, private citizens, banks, and corporations exchange pounds for dollars and dollars for pounds every day.

Those who demand pounds are holders of dollars seeking to exchange them for pounds.

Those who supply pounds are holders of pounds seeking to exchange them for dollars.

The Open Economy with Flexible Exchange Rates

The Market for Foreign Exchange

The Supply of and Demand for Pounds

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1. Firms, households, or governments that import British goods into the United States or want to buy British-made goods and services

2. U.S. citizens traveling in Great Britain

3. Holders of dollars who want to buy British stocks, bonds, or other financial instruments

4. U.S. companies that want to invest in Great Britain

5. Speculators who anticipate a decline in the value of the dollar relative to the pound

The Demand for Pounds (Supply of Dollars)

TABLE 20.2 Some Buyers and Sellers in International Exchange Markets: United States and Great Britain

The Supply of Pounds (Demand for Dollars)




1. Firms, households, or governments that import U.S. goods into Great Britain or want to buy U.S.-made goods and services

2. British citizens traveling in the United States

3. Holders of pounds who want to buy stocks, bonds, or other financial instruments in the United States

4. British companies that want to invest in the United States

5. Speculators who anticipate a rise in the value of the dollar relative to the pound

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Which of the following groups have an interest in participating in foreign exchange markets?

a. Firms, households, or governments.

b. Travelers.

c. Investors and speculators.


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Which of the following groups have an interest in participating in foreign exchange markets?

a. Firms, households, or governments.

b. Travelers.

c. Investors and speculators.

d. d. All of the above.All of the above.

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FIGURE 20.2 The Demand for Pounds in the Foreign Exchange Market

When the price of pounds falls, British-made goods and services appear less expensive to U.S. buyers. If British prices are constant, U.S. buyers will buy more British goods and services and the quantity of pounds demanded will rise.

FIGURE 20.3 The Supply of Pounds in the Foreign Exchange Market

When the price of pounds rises, the British can obtain more dollars for each pound. This means that U.S.-made goods and services appear less expensive to British buyers. Thus, the quantity of pounds supplied is likely to rise with the exchange rate.




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In the foreign exchange market for Colombian pesos, who constitutes supply and demand?

a. Supply is the central bank of Colombia (or Banco de la República), and demand is any foreigner who wants to buy Colombian goods, services and assets.

b. Supply is comprised of those who hold pesos and would like to acquire foreign currency, and demand is comprised of those who hold foreign exchange and would like to acquire pesos.

c. Supply is comprised of those who have Colombian goods, and demand is comprised of those who wish to buy Colombian goods.

d. Supply is the central bank of Colombia (or Banco de la República), and demand is comprised of Colombians wishing to buy foreign currency.

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In the foreign exchange market for Colombian pesos, who constitutes supply and demand?

a. Supply is the central bank of Colombia (or Banco de la República), and demand is any foreigner who wants to buy Colombian goods, services and assets.

b.b. Supply is comprised of those who hold pesos and would like Supply is comprised of those who hold pesos and would like to acquire foreign currency, and demand is comprised of those who to acquire foreign currency, and demand is comprised of those who hold foreign exchange and would like to acquire pesos.hold foreign exchange and would like to acquire pesos.

c. Supply is comprised of those who have Colombian goods, and demand is comprised of those who wish to buy Colombian goods.

d. Supply is the central bank of Colombia (or Banco de la República), and demand is comprised of Colombians wishing to buy foreign currency.

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appreciation of a currency The rise in value of one currency relative to another.

depreciation of a currency The fall in value of one currency relative to another.

The equilibrium exchange rate occurs at the point at which the quantity demanded of a foreign currency equals the quantity of that currency supplied.



The Equilibrium Exchange Rate

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FIGURE 20.4 The Equilibrium Exchange Rate

When exchange rates are allowed to float, they are determined by the forces of supply and demand.

An excess demand for pounds will cause the pound to appreciate against the dollar.

An excess supply of pounds will lead to a depreciating pound.



The Equilibrium Exchange Rate

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A drop in the value of the dollar against the Colombian peso will:

a. Make U.S. goods more attractive to Colombians.

b. Make U.S. goods more attractive to U.S. residents.

c. Dollars buy fewer pesos and pesos buy more dollars.


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A drop in the value of the dollar against the Colombian peso will:

a. Make U.S. goods more attractive to Colombians.

b. Make U.S. goods more attractive to U.S. residents.

c. Dollars buy fewer pesos and pesos buy more dollars.

d. d. All of the above.All of the above.

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law of one price If the costs of transportation are small, the price of the same good in different countries should be roughly the same.

purchasing-power-parity theory A theory of international exchange holding that exchange rates are set so that the price of similar goods in different countries is the same.

A high rate of inflation in one country relative to another puts pressure on the exchange rate between the two countries, and there is a general tendency for the currencies of relatively high-inflation countries to depreciate.


Factors That Affect Exchange Rates

Purchasing Power Parity: The Law of One Price

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According to the purchasing-power-parity theory, a 10% increase in the rate of inflation in Colombia would lead to:

a. 10% appreciation of the dollar against the peso.

b. 10% depreciation of the dollar against the peso.

c. No change in the value of the dollar relative to the peso.

d. A decrease in prices in the United States by 10%.

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According to the purchasing-power-parity theory, a 10% increase in the rate of inflation in Colombia would lead to:

a.a. 10% appreciation of the dollar against the peso. 10% appreciation of the dollar against the peso.

b. 10% depreciation of the dollar against the peso.

c. No change in the value of the dollar relative to the peso.

d. A decrease in prices in the United States by 10%.

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FIGURE 20.5 Exchange Rates Respond to Changes in Relative Prices

The higher price level in the United States makes imports relatively less expensive.

U.S. citizens are likely to increase their spending on imports from Britain, shifting the demand for pounds to the right, from D0 to D1.

At the same time, the British see U.S. goods getting more expensive and reduce their demand for exports from the United States.

The supply of pounds shifts to the left, from S0 to S1.

The result is an increase in the price of pounds.

The pound appreciates, and the dollar is worth less.



Purchasing Power Parity: The Law of One Price

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FIGURE 20.6 Exchange Rates Respond to Changes in Relative Interest Rates

If U.S. interest rates rise relative to British interest rates, British citizens holding pounds may be attracted into the U.S. securities market.

To buy bonds in the United States, British buyers must exchange pounds for dollars.

The supply of pounds shifts to the right, from S0 to S1.

However, U.S. citizens are less likely to be interested in British securities because interest rates are higher at home.

The demand for pounds shifts to the left, from D0 to D1.

The result is a depreciated pound and a stronger dollar.



Relative Interest Rates

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When domestic prices in the United States are rising, in the foreign exchange market for dollars:

a. The supply of dollars will rise, and the demand for dollars will fall.

b. The supply of dollars will fall and the demand for dollars will rise.

c. Both the supply and the demand for dollars will fall.

d. Both the supply and the demand for dollars will rise.

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When domestic prices in the United States are rising, in the foreign exchange market for dollars:

a.a. The supply of dollars will rise, and the demand for dollars will The supply of dollars will rise, and the demand for dollars will fall. fall.

b. The supply of dollars will fall and the demand for dollars will rise.

c. Both the supply and the demand for dollars will fall.

d. Both the supply and the demand for dollars will rise.

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A depreciation of a country’s currency is likely to increase its GDP.

The level of imports and exports depends on exchange rates as well as on income and other factors.

When events cause exchange rates to adjust, the levels of imports and exports will change.

Changes in exports and imports can, in turn, affect the level of real GDP and the price level. Further, exchange rates themselves also adjust to changes in the economy.


The Effects of Exchange Rates on the Economy

Exchange Rate Effects on Imports, Exports, and Real GDP

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FIGURE 20.7 The Effect of a Depreciation on the Balance of Trade (the J Curve)

Initially, a depreciation of a country’s currency may worsen its balance of trade.

The negative effect on the price of imports may initially dominate the positive effects of an increase in exports and a decrease in imports.

balance of trade = dollar price of exports × quantity of exports − dollar price of imports × quantity of imports



Exchange Rates and the Balance of Trade: The J Curve

J-curve effect Following a currency depreciation, a country’s balance of trade may get worse before it gets better. The graph showing this effect is shaped like the letter J, hence the name J-curve effect.

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A cheaper dollar is a good thing if the goal of the monetary expansion is to stimulate the domestic economy. If consumers substitute U.S.-made goods for imports, they will spend more on domestic products, so the multiplier actually increases.

Tight monetary policy works through a higher interest rate, which lowers investment and consumption spending, reducing aggregate expenditure and output, and lowering the price level. This also attracts foreign buyers into U.S. financial markets, driving up the value of the dollar, which reduces the price of imports and helps fight inflation.

The depreciation of a country’s currency tends to increase its price level.



Exchange Rates and Prices

Monetary Policy with Flexible Exchange Rates

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The openness of the economy and flexible exchange rates do not always work to the advantage of policy makers.

Without a fully accommodating Fed, three factors work to reduce the multiplier:

(1) A higher interest rate from the increase in money demand may crowd out private investment and consumption;

(2) Some of the increase in income from the expansion will be spent on imports; and

(3) A higher interest rate may cause the dollar to appreciate, discouraging exports and further encouraging imports.



Fiscal Policy with Flexible Exchange Rates

Monetary policy cannot play a role when a country has a fixed exchange rate unless it imposes capital controls.

Monetary Policy with Fixed Exchange Rates

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An open economy with flexible exchange rates works to the advantage of:

a. Fiscal policy used to stimulate the economy.

b. Monetary policy to stimulate the economy.

c. Both fiscal and monetary policies to stimulate the economy.

d. Neither fiscal nor monetary policies to stimulate the economy.

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An open economy with flexible exchange rates works to the advantage of:

a. Fiscal policy used to stimulate the economy.

b.b. Monetary policy to stimulate the economy.Monetary policy to stimulate the economy.

c. Both fiscal and monetary policies to stimulate the economy.

d. Neither fiscal nor monetary policies to stimulate the economy.

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Most economies in the world operate with flexible exchange rates. One exception among the major trading countries has been China, whose government has acted to keep the value of its currency, the yuan, stable and relatively low.

An undervalued yuan increases demand for Chinese goods from abroad, but it also hurts the Chinese population by making foreign goods more expensive. In the late spring of 2010, after much pressure from its trading partners, the Chinese government announced that it would make the yuan more flexible.

China’s Increased Flexibility


China Warns on Currency Moves


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In 1999 the European Central Bank (ECB) was created and a common currency for much of Europe, the euro, was introduced.

Countries across Europe dismantled their own monetary authorities and ceded control over monetary policy to the ECB.

The recession that began in 2008 has proven to be a tough test for the ECB as it has tried to fashion monetary policy for a set of nations whose economies differ in many ways, including fiscal discipline.

With a common currency, problems with Greek debt have substantial effects on stronger economies like Germany’s.

Losing Monetary Policy Control


Euro Trips Amid Identity Crisis


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The increasing interdependence of countries in the world economy has made the problems facing policy makers more difficult.

We used to be able to think of the United States as a relatively self-sufficient region.

Forty years ago economic events outside U.S. borders had relatively little effect on its economy. This situation is no longer true.

The events of the past four decades have taught us that the performance of the U.S. economy is heavily dependent on events outside U.S. borders.

This chapter and the previous chapter have provided only the bare bones of open-economy macroeconomics. The next chapter concludes with a discussion of the problems of developing countries.

An Interdependent World Economy

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appreciation of a currency

balance of payments

balance of trade

balance on capital account

balance on current account

depreciation of a currency

exchange rate

floating, or market-determined, exchange rates

foreign exchange

J-curve effect

law of one price

marginal propensity to import (MPM)

net exports of goods and services (EX − IM)

price feedback effect

purchasing-power-parity theory

trade deficit

trade feedback effect

Planned aggregate expenditure in an open economy:

AE ≡ C + I + G + EX − IM

Open-economy multiplier =

)(1

1

MPMMPC

R E V I E W T E R M S A N D C O N C E P T S

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CHAPTER 20 APPENDIX

World Monetary Systems Since 1900

The Gold Standard

Problems with the Gold Standard

Fixed Exchange Rates and the Bretton Woods System

The gold standard was the major system of exchange rate determination before 1914. All currencies were priced in terms of gold—an ounce of gold was worth so much in each currency.

The gold standard implied that a country had little control over its money supply. When major new gold fields were discovered, the world’s supply of gold (and therefore of money) increased. When no new gold was discovered, the supply of money remained unchanged and prices and income tended to fall.

Under this system, countries were to maintain fixed exchange rates with one another in terms of the U.S. dollar instead of pegging their currencies directly to gold. Countries experiencing a “fundamental disequilibrium” in their balance of payments were allowed to change their exchange rates, invoking rivalry that led to the creation of the International Monetary Fund (IMF).

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FIGURE 20A.1 Government Intervention in the Foreign Exchange Market

If the price of Australian dollars were set in a completely unfettered market, one Australian dollar would cost 0.96 U.S. dollars when demand is D0 and 0.90 when demand is D1.

If the government has committed to keeping the value at 0.96, it must buy up the excess supply of Australian dollars (Qs − Qd).

CHAPTER 20 APPENDIX

World Monetary Systems Since 1900

“Pure” Fixed Exchange Rates

Problems with the Bretton Woods System

There was a basic asymmetry built into the rules of international finance. Also, this system permitted devaluations only when a country had a “chronic” current account deficit and was in danger of running out of foreign exchange reserves. Since its demise in 1971, the world’s exchange rate system can be described as “managed floating,” a flexibly fluctuating alternative where governments intervene if markets are becoming “disorderly.”

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