Quiz: Macroeconomics Topics Part One — 67 questions

1. What does gross domestic product measure?

A. The total wealth owned by households and firms in a country

B. The income earned by a country's nationals regardless of where they work

C. The market value of final goods and services produced within a country during a period

D. The market value of intermediate goods traded within a country's borders

Answer: (C)

Explanation

GDP measures the market value of final goods and services produced within a country's borders during a specified period. The income of nationals abroad is associated with national production measures such as GNP, not GDP.

2. Which situation is included in a country's GDP?

A. A national-owned factory producing goods in another country

B. A domestic firm reselling an imported intermediate good without further production

C. A foreign-owned factory producing goods within the country's borders

D. A domestic citizen earning wages at a factory located overseas

Answer: (C)

Explanation

GDP is based on where production occurs, so output from a foreign-owned factory located domestically is included. Production by nationals abroad concerns national production rather than domestic production.

3. Which expression represents the expenditure decomposition of GDP?

A. $Y = C + I + G - NX$

B. $Y = C + I + G + NX$

C. $Y = C + G - I + NX$

D. $Y = C + I - G + NX$

Answer: (B)

Explanation

GDP can be measured as total spending, which is decomposed into consumption, investment, government purchases, and net exports. The other expressions use an incorrect sign for one component.

4. Which purchase is classified as household consumption rather than investment?

A. A firm's addition of unsold goods to inventory

B. A household's purchase of a new car

C. A firm's purchase of manufacturing equipment

D. A household's purchase of a newly built home

Answer: (B)

Explanation

Consumption includes household purchases of durable and nondurable goods, such as cars. New housing is classified as investment, as are business capital purchases and inventory accumulation.

5. How is real GDP calculated when comparing production across years?

A. Current quantities are valued at prices from a reference year

B. Reference-year quantities are valued at reference-year prices

C. Reference-year quantities are valued at current-period prices

D. Current quantities are valued at current-period prices

Answer: (A)

Explanation

Real GDP uses actual quantities from each period but values them at prices from a chosen reference year, holding prices constant. Valuing current quantities at current prices instead produces nominal GDP.

6. How is the GDP deflator calculated?

A. $\text{GDP deflator} = \text{Nominal GDP} \times \text{Real GDP}$

B. $\text{GDP deflator} = \frac{\text{Real GDP}}{\text{Nominal GDP}}$

C. $\text{GDP deflator} = \text{Nominal GDP} - \text{Real GDP}$

D. $\text{GDP deflator} = \frac{\text{Nominal GDP}}{\text{Real GDP}}$

Answer: (D)

Explanation

The GDP deflator is the ratio of nominal GDP to real GDP and captures the price component of production. Real GDP itself measures quantities using fixed reference-year prices rather than serving as the price index.

7. Why is GDP an imperfect measure of economic well-being?

A. It adjusts market output for inequality and incorporates environmental improvements

B. It measures intrinsic value directly while excluding goods traded in markets

C. It includes household production and leisure but excludes market transactions

D. It excludes household production and leisure while overlooking environmental harm and inequality

Answer: (D)

Explanation

GDP may omit valuable nonmarket activities such as house production and leisure, while market prices may miss intrinsic value, environmental damage, and distributional differences. Therefore, higher GDP does not necessarily indicate proportionally greater well-being.

8. What does the Consumer Price Index measure?

A. The overall cost of goods and services purchased by a typical consumer

B. The market value of final goods produced by domestic firms

C. The overall price of all goods and services produced domestically

D. The total income earned by consumers after adjusting for inflation

Answer: (A)

Explanation

The CPI measures the cost of a representative consumer's basket of goods and services. The GDP deflator instead concerns prices of domestically produced output, including goods not purchased by consumers.

9. How is a consumer price index constructed across different dates?

A. A fixed production basket is valued using prices from each date

B. A fixed reference basket is valued using prices from each date

C. A fixed reference basket is valued using quantities from each date

D. A changing basket is valued using prices from each date

Answer: (B)

Explanation

CPI construction keeps the quantities in a reference consumption basket fixed while replacing the prices with those from different dates. Allowing the basket composition to change would reflect a different index concept.

10. What does the inflation rate measure?

A. The percentage change in the CPI from the preceding period

B. The ratio of nominal income to real income in a period

C. The percentage change in real GDP from the preceding period

D. The level of the CPI relative to its reference-year value

Answer: (A)

Explanation

Inflation is the percentage change in the consumption basket's price, represented by the percentage change in the CPI between periods. The CPI level itself indicates a price index value, not the rate of change.

11. How can a nominal economic value be converted into its real value using an inflation measure?

A. $\text{Real value} = \text{Inflation measure} - \text{Nominal value}$

B. $\text{Real value} = \text{Nominal value} \times \text{Inflation measure}$

C. $\text{Real value} = \frac{\text{Nominal value}}{\text{Inflation measure}}$

D. $\text{Real value} = \frac{\text{Inflation measure}}{\text{Nominal value}}$

Answer: (C)

Explanation

The real value is obtained by dividing the nominal value by the relevant inflation measure. Multiplying by the inflation measure would generally increase the effect of changing prices rather than remove it.

12. How is the Gini index calculated from the Lorenz curve?

A. The area between the equality line and Lorenz curve divided by the total area under the equality line

B. The slope of the Lorenz curve divided by the population share represented

C. The total area under the Lorenz curve divided by the area between the two curves

D. The difference between the highest and lowest incomes divided by average income

Answer: (A)

Explanation

The Gini index is defined as $Gini = A/(A+B)$, where $A$ is the area between the equality line and the Lorenz curve. A value of 0 indicates perfect equality, while a value of 1 indicates extreme inequality.

13. What do percentiles indicate in an income distribution?

A. The average income earned by each household in a population

B. Groups of equal size formed by ranking people according to their ages

C. The difference between the highest and lowest incomes in a population

D. Groups of equal size formed by ranking people according to their incomes

Answer: (D)

Explanation

Percentiles divide people into equal-sized groups after sorting them by income rank. Average income summarizes the level of income but does not reveal how people are distributed across ranks.

14. In France in 2011, what was the approximate ratio of average after-tax monthly available income between the top and bottom deciles?

A. Sixteen to one, based on $4226$ dollars versus $261$ dollars

B. Four to one, based on $2112$ dollars versus $522$ dollars

C. Eight to one, based on $4226$ dollars versus $522$ dollars

D. Ten to one, based on $5220$ dollars versus $522$ dollars

Answer: (C)

Explanation

The top decile had an average monthly available income of $4226$ dollars, compared with $522$ dollars for the bottom decile, producing a ratio of about 8. The other ratios do not follow from the reported French income figures.

15. A factory raises its output from 80 to 100 units while worker-hours rise from 10 to 20. What happens to productivity?

A. It rises from 5 to 8 units per worker-hour

B. It falls from 8 to 5 units per worker-hour

C. It rises from 8 to 10 units per worker-hour

D. It remains at 8 units per worker-hour

Answer: (B)

Explanation

Productivity is output produced per hour of a worker’s time, so it changes from $80/10=8$ to $100/20=5$ units per hour. The total output increased, but output per hour decreased.

16. If output is $y_{t-1}=100$ in one period and $y_t=110$ in the next, which expression gives the growth rate?

A. $g_t=\frac{110-100}{110}$

B. $g_t=\log\left(\frac{110}{100}\right)$

C. $g_t=\log\left(\frac{100}{110}\right)$

D. $g_t=\frac{100}{110}-1$

Answer: (B)

Explanation

The growth rate is defined as $g_t=\log(y_t/y_{t-1})$, so these values give $\log(110/100)$. Productivity level instead measures output per worker-hour and is a different concept.

17. Which expression represents a production function combining the main productive inputs?

A. $Y=L+K-H-N$

B. $Y=\frac{L}{K}+\frac{H}{N}$

C. $Y=F(L,K,H,N)$

D. $Y=F(C,G,S,I)$

Answer: (C)

Explanation

The production function is represented by $Y=F(L,K,H,N)$, combining labour, physical capital, human capital, and natural resources. The other expressions do not represent the stated input-output relationship.

18. What does diminishing returns to an input mean?

A. The output falls whenever any input is increased in production

B. The benefit from an extra unit declines as the quantity of that input rises

C. The total benefit becomes negative after the first unit is employed

D. The benefit from every additional input unit remains constant over time

Answer: (B)

Explanation

Diminishing returns mean that each additional unit of an input contributes a smaller benefit as more of that input is used. This does not imply that total output immediately falls or that the marginal benefit becomes negative.

19. What role do financial markets play in the movement of funds?

A. They allow borrowers to obtain funds without any saver supplying them

B. They allow savers to provide funds directly to borrowers

C. They allow firms to set wages directly for their employees

D. They allow governments to collect taxes directly from households

Answer: (B)

Explanation

Financial markets are institutions through which savers directly provide funds to borrowers. Financial intermediaries perform a different role by connecting savers and borrowers indirectly.

20. Which statement correctly distinguishes a bond from a stock?

A. A bond has returns tied to dividends, while a stock guarantees repayment and a fixed interest rate

B. A bond involves unconditional repayment, while a stock represents partial ownership with returns tied to firm output

C. A bond and a stock both promise fixed repayment regardless of firm performance

D. A bond represents partial ownership, while a stock promises unconditional repayment with a guaranteed interest rate

Answer: (B)

Explanation

A bond is a certificate of indebtedness with unconditional repayment and a guaranteed interest rate, whereas a stock represents partial ownership and its return depends on firm output through dividends. Stock returns therefore do not carry the same repayment guarantee as bonds.

21. Why is a financial intermediary described as both a borrower and a lender?

A. It collects taxes from households and lends the proceeds to firms

B. It lends funds to savers and borrows funds from the government

C. It borrows funds from savers and lends those funds to borrowers

D. It borrows from firms and distributes ownership shares to households

Answer: (C)

Explanation

Financial intermediaries connect savers and borrowers indirectly by borrowing from savers and lending to borrowers. This dual role distinguishes them from financial markets, where savers provide funds directly.

22. In a closed economy with output $Y=1000$, consumption $C=700$, and government purchases $G=200$, what are aggregate saving and investment?

A. $S=I=500$

B. $S=I=100$

C. $S=I=300$

D. $S=I=900$

Answer: (B)

Explanation

In a closed economy, aggregate saving is $S=Y-C-G=1000-700-200=100$, and saving equals investment, so $I=100$. The larger values omit either consumption or government purchases from the calculation.

23. Which person meets the definition of unemployed in the labor market?

A. A retired person without a job who is not seeking employment

B. A working-age person without a job who is available and ready to work at current wages

C. A sick person without a job who cannot currently accept work

D. A student without a job who is preparing for a future career

Answer: (B)

Explanation

Unemployment requires more than lacking a job: the person must be of working age, available, and ready to work at prevailing wages. A student, retired person, or person unable to work does not meet these conditions.

24. Under Labour Force Survey criteria, which person is classified as unemployed?

A. Someone without a job who can start within two weeks and recently searched or awaits a job

B. Someone receiving benefits despite having a job and making no recent application

C. Someone who worked two hours last week and is seeking a different occupation

D. Someone without a job who cannot start work for several months

Answer: (A)

Explanation

The survey definition requires no job, availability to start within two weeks, and either recent job search or waiting for a job to begin. Claimant status alone does not determine unemployment under standardized survey criteria.

25. A worker leaves a job and spends three weeks finding a suitable replacement in the same labor market; what type of unemployment results?

A. Structural unemployment caused by the disappearance of relevant jobs

B. Cyclical unemployment caused by a broad fall in aggregate demand

C. Seasonal unemployment caused by predictable changes in annual production

D. Frictional unemployment caused by the time required to match with a new job

Answer: (D)

Explanation

Frictional unemployment reflects the time needed to search for and match with a new job. Structural unemployment instead occurs when no suitable job exists in the relevant labor market.

26. Why might a firm voluntarily pay an efficiency wage above the market-clearing level?

A. To eliminate job-search time by guaranteeing every applicant a position

B. To raise worker productivity, even though the higher wage may create unemployment

C. To reduce productivity by making workers less concerned about keeping their jobs

D. To ensure wages fall whenever the number of available workers increases

Answer: (B)

Explanation

Efficiency wages are deliberately set above equilibrium to improve productivity, for example through stronger effort or better worker quality. Because the wage exceeds the market-clearing level, some workers may remain unemployed.

27. What distinguishes a union from an individual employee in wage bargaining?

A. A union is a firm department that assigns workers to particular occupations

B. A union represents workers collectively when negotiating pay and working conditions

C. A union is a government agency that sets legal wages across all industries

D. A union represents employers collectively when negotiating workplace benefits

Answer: (B)

Explanation

A union is an association of workers that bargains collectively with employers. An individual employee negotiates on their own, while government agencies and employer organizations have different roles.

28. How can union wage increases contribute to labor-market segmentation?

A. They can create better-paid union insiders alongside unrepresented outsiders with weaker conditions

B. They can move all unrepresented workers into union membership through automatic enrollment

C. They can make every worker receive identical pay and identical workplace conditions

D. They can replace labor markets with a single employer that hires workers at one wage

Answer: (A)

Explanation

Union wage gains can divide the labor market between insiders, who receive union representation and favorable conditions, and outsiders, who remain unrepresented. The effect is segmentation rather than uniform treatment of all workers.

29. When might union bargaining improve economic efficiency rather than reduce it?

A. When employers possess excessive bargaining power, such as under a regional monopoly

B. When employers face many competing workers and can freely determine market wages

C. When unions prevent firms from responding to any change in labor demand

D. When union members receive higher wages despite having no effect on bargaining power

Answer: (A)

Explanation

Unions can counteract inefficiency when an employer has excessive bargaining power, as in a regional monopoly. Their effects may instead reduce efficiency when bargaining power becomes excessive on the union side.

30. Which sequence correctly describes the four main efficiency-wage mechanisms?

A. Better advertising, lower rent, greater imports, and improved shareholder returns

B. Better health, lower turnover, greater effort, and improved worker quality

C. More leisure, lower demand, greater inflation, and improved product variety

D. Higher taxes, lower prices, greater exports, and improved capital quality

Answer: (B)

Explanation

Efficiency wages can raise productivity through better worker health, reduced costly turnover, greater effort, and improved worker quality. The other sequences list outcomes unrelated to the recognized efficiency-wage mechanisms.

31. Which combination correctly identifies the three functions of money?

A. Medium of exchange, store of value, and accounting measure through public prices

B. Tax instrument, investment project, and private record of individual wealth

C. Production input, labor contract, and guarantee of constant purchasing power

D. Barter substitute, physical asset, and insurance contract against every loss

Answer: (A)

Explanation

Money facilitates exchange, preserves value for future use, and provides an accounting measure through prices. Barter is not itself a function of money because it requires a coincidence of wants.

32. What does the liquidity of an asset measure?

A. How strongly the asset increases a person's total stock of wealth

B. How much intrinsic value the asset contains in physical materials

C. How easily the asset can be converted into a medium of exchange

D. How long the asset must be held before it can earn a return

Answer: (C)

Explanation

Liquidity refers to the ease of converting a store of value into a medium of exchange. An asset may contribute substantially to wealth while still being difficult or slow to sell.

33. Which classification correctly distinguishes commodity, fiat, and peer-to-peer money?

A. Commodity money has intrinsic value, fiat money is legal tender without intrinsic value, and bitcoin is peer-to-peer money

B. Commodity money has no intrinsic value, fiat money is a physical good, and bitcoin is issued by a central bank

C. Commodity money is legal tender by declaration, fiat money is jewelry, and bitcoin is a Treasury bill

D. Commodity money is a digital network, fiat money has intrinsic value, and bitcoin is backed by precious metals

Answer: (A)

Explanation

Commodity money possesses intrinsic value, fiat money is accepted as legal tender despite lacking intrinsic value, and bitcoin is an example of peer-to-peer money. The other classifications interchange the defining properties of these forms.

34. Which institution controls the economy’s money supply through monetary policy and generally has a price-stability mandate?

A. A commercial bank

B. A deposit insurance agency

C. A central bank

D. A finance ministry

Answer: (C)

Explanation

A central bank manages the money supply through monetary policy and is generally assigned responsibility for price stability. A commercial bank can create private money through lending, but it does not perform the central bank’s economy-wide monetary-policy role.

35. What happens when a central bank conducts an open-market operation to inject money into the economy?

A. It sells government bonds and removes deposits from households

B. It raises reserve requirements and restricts new bank lending

C. It buys government bonds in exchange for newly created money

D. It collects taxes and transfers the proceeds to commercial banks

Answer: (C)

Explanation

An open-market injection occurs when the central bank buys assets such as government bonds and pays with fresh money. Selling bonds would instead tend to withdraw money from the economy.

36. Why can fractional-reserve banking expand the money supply beyond the reserves held by banks?

A. Banks prevent withdrawals by replacing deposits with government bonds

B. Banks create money by increasing reserve requirements above deposit levels

C. Banks lend part of the funds represented by their deposits while retaining fewer reserves

D. Banks convert every deposit into an equal amount of physical currency

Answer: (C)

Explanation

Fractional-reserve banking permits banks to make loans while holding reserves below the value of deposits, expanding deposit money. Bank runs, prudent banking, and minimum reserve requirements constrain this process.

37. Which statement illustrates the classical dichotomy?

A. Interest rates are physical variables, while output is a monetary variable

B. Currency holdings are real variables, while production is a nominal variable

C. Prices are real variables, while quantities of goods are nominal variables

D. Prices are nominal variables, while quantities of goods are real variables

Answer: (D)

Explanation

The classical dichotomy separates nominal variables measured in money from real variables measured in physical units. Prices are expressed in monetary terms, whereas quantities of goods represent real activity.

38. What does monetary neutrality claim about a change in the money supply?

A. It lowers inflation whenever the money supply increases

B. It changes nominal variables without changing real variables

C. It prevents nominal variables from responding to monetary policy

D. It changes real production without changing prices or wages

Answer: (B)

Explanation

Monetary neutrality is the proposition that changes in the money supply do not affect real variables, even though nominal variables can change. A monetary injection therefore directly affects monetary magnitudes rather than necessarily altering real production.

39. In the quantity equation $MV = PY$, what does $Y$ represent?

A. Total real production

B. The economy’s money supply

C. The velocity of money

D. The economy’s price level

Answer: (A)

Explanation

In $MV = PY$, $Y$ denotes total real production, while $M$ is the money supply, $V$ is velocity, and $P$ is the price level. Confusing $Y$ with $P$ would mistake real output for the general price level.

40. If the nominal interest rate is 8% and inflation is 3%, what is the approximate real interest rate using the Fisher relationship?

A. 5%

B. 11%

C. 8%

D. 3%

Answer: (A)

Explanation

The approximate Fisher relationship is $r = i - \pi$, so the real interest rate is $8\% - 3\% = 5\%$. Adding inflation to the nominal rate would reverse the relationship between nominal and real interest rates.

41. Which monthly inflation rate meets the definition of hyperinflation?

A. 40% per month

B. 60% per month

C. 25% per month

D. 12% per month

Answer: (B)

Explanation

Hyperinflation is defined as inflation exceeding 50% per month, so a monthly rate of 60% qualifies. The other rates remain below that threshold, even though they represent severe inflation.

42. How does an inflation tax finance government spending?

A. The government creates money or directs the central bank to buy its debt, raising prices

B. The government increases income-tax rates while keeping the money supply unchanged

C. The government reduces public spending and destroys money held by households

D. The government borrows from households without changing prices or the money supply

Answer: (A)

Explanation

An inflation tax arises when money creation finances government spending, including when the central bank purchases government debt, and the resulting price increases reduce the purchasing power of money. Ordinary taxation collects revenue without requiring prices to rise through money creation.

43. What does the inflation fallacy incorrectly assume about purchasing power?

A. It assumes inflation raises every category’s purchasing power when salaries increase

B. It assumes profits and salaries always grow at identical rates during inflation

C. It assumes production remains unchanged whenever the general price level rises

D. It assumes overall purchasing power falls even though purchasing power equals production by definition

Answer: (D)

Explanation

The inflation fallacy treats a decline in the purchasing power of money as a decline in overall purchasing power, even though purchasing power equals production by definition. Particular groups or categories can lose purchasing power when profits rise faster than salaries, but that does not establish an economy-wide decline in production.

44. If a country exports goods worth $800 billion and imports goods worth $950 billion, what are its net exports and trade position?

A. Net exports are $150 billion, indicating a trade surplus

B. Net exports are -$1,750 billion, indicating a trade surplus

C. Net exports are -$150 billion, indicating a trade deficit

D. Net exports are $1,750 billion, indicating balanced trade

Answer: (C)

Explanation

Net exports are calculated as exports minus imports, so $NX=800-950=-150$ billion, which indicates a trade deficit. A positive value would indicate a trade surplus, but this country imports more than it exports.

45. When residents purchase more foreign assets than foreigners purchase domestic assets, what happens to net capital outflow?

A. It becomes positive because imports exceed exports in the goods market

B. It becomes zero because international asset transactions balance automatically

C. It becomes positive because foreign-asset purchases exceed domestic-asset purchases

D. It becomes negative because domestic investment exceeds national saving

Answer: (C)

Explanation

Net capital outflow equals foreign assets bought by residents minus domestic assets bought by foreigners, so it is positive in this situation. A negative value would occur when foreigners buy more domestic assets than residents buy foreign assets.

46. Why must net capital outflow equal net exports in the fundamental international identity?

A. Exports are paid for through foreign currency or assets obtained in international transactions

B. Imports are excluded from national income when capital crosses national borders

C. Exports determine the domestic interest rate through the loanable-funds market

D. Foreign investors purchase domestic assets whenever a country has a trade surplus

Answer: (A)

Explanation

Exported goods are paid for with foreign currency, foreign assets, or domestic currency acquired through asset sales, linking goods flows to capital flows. The other choices describe related economic relationships but do not establish the identity $NCO=NX$.

47. What does the nominal exchange rate measure?

A. The real return earned by residents who invest in foreign assets

B. The quantity of foreign goods that one unit of domestic output can purchase

C. The rate at which one country's currency can be traded for another country's currency

D. The relative price of domestic goods after adjusting for inflation

Answer: (C)

Explanation

The nominal exchange rate is the rate at which a person can trade one country's currency for another country's currency. The quantity of goods purchased and inflation-adjusted prices concern purchasing power or real exchange rates rather than the nominal currency-conversion rate.

48. In the open-economy loanable-funds market, how do saving and the combination of domestic investment plus net capital outflow respond to a higher real interest rate?

A. Both saving and domestic investment plus net capital outflow increase

B. Saving increases, while domestic investment plus net capital outflow decreases

C. Both saving and domestic investment plus net capital outflow decrease

D. Saving decreases, while domestic investment plus net capital outflow increases

Answer: (B)

Explanation

Saving is upward-sloping in the real interest rate, whereas domestic investment plus net capital outflow is downward-sloping. Therefore, a higher interest rate increases saving and reduces the combined demand for loanable funds.

49. In the foreign-currency market, which statement correctly describes net capital outflow and net exports?

A. Net capital outflow supplies domestic currency, while net exports demand domestic currency

B. Both net capital outflow and net exports supply domestic currency

C. Both net capital outflow and net exports demand domestic currency

D. Net capital outflow demands domestic currency, while net exports supply domestic currency

Answer: (A)

Explanation

Residents’ purchases of foreign assets supply domestic currency, while foreigners’ purchases of the country’s net exports demand domestic currency. Confusing these two market roles reverses the direction of the currency flows.

50. What occurs when a country's domestic real interest rate rises above the world real interest rate?

A. Financial arbitrage encourages capital outflows from the country

B. Financial arbitrage encourages capital inflows into the country

C. Domestic saving falls until the world interest rate rises equally

D. The exchange rate becomes unrelated to international investment flows

Answer: (B)

Explanation

A domestic real interest rate above the world rate makes domestic assets relatively attractive, so financial arbitrage causes capital inflows. Capital outflows occur when the domestic real interest rate falls below the world rate.

51. What is the predicted sequence of effects when a government deficit reduces national saving in an open economy?

A. Saving supply shifts left, the interest rate rises, capital flows in, and the currency appreciates

B. Investment demand shifts left, the interest rate falls, capital flows in, and the currency appreciates

C. Saving supply shifts right, the interest rate falls, capital flows out, and the currency depreciates

D. Saving supply shifts left, the interest rate falls, capital flows out, and the currency depreciates

Answer: (A)

Explanation

A government deficit reduces national saving, shifting the loanable-funds supply curve left and raising the interest rate. The higher interest rate attracts capital inflows, which appreciate the currency and produce a trade deficit.

52. Which equation expresses the open-economy relationship among saving, investment, net capital outflow, and net exports?

A. $S+I=NCO-NX=X-\frac{M}{E}$

B. $S-I=NCO+NX=X-\frac{M}{E}$

C. $S-I=NCO=NX=X-\frac{M}{E}$

D. $S+I=NCO=NX=X-\frac{M}{E}$

Answer: (C)

Explanation

The model states that saving minus investment equals net capital outflow, which equals net exports, with net exports written as $X-\frac{M}{E}$. Adding saving and investment or adding net capital outflow and net exports breaks these accounting relationships.

53. Under the stated open-economy assumptions, what is the immediate effect of an import quota on the equilibrium exchange rate?

A. It increases currency demand and appreciates the equilibrium exchange rate

B. It increases domestic investment and lowers the domestic interest rate

C. It reduces national saving and raises the domestic interest rate

D. It decreases currency demand and depreciates the equilibrium exchange rate

Answer: (A)

Explanation

An import quota reduces imports, increases demand for the local currency, and shifts the currency-demand curve rightward, causing appreciation. Under the stated assumption, the quota does not directly change saving or investment.

54. Why does an import tax or quota fail to reduce the trade deficit when saving and investment are exogenous?

A. Currency appreciation offsets the initial reduction in imports

B. Domestic investment falls and causes exports to decline proportionally

C. Currency depreciation increases imports beyond their initial level

D. National saving rises and eliminates the need for foreign investment

Answer: (A)

Explanation

With saving and investment fixed, net exports are determined by their difference through $S-I=NCO=NX$. The policy initially reduces imports, but the resulting currency appreciation offsets that reduction, leaving the trade deficit unchanged.

55. How does capital flight caused by fears of instability affect an open economy?

A. Net capital outflows rise, the interest rate falls, and the exchange rate appreciates

B. Net capital outflows fall, the interest rate rises, and the exchange rate depreciates

C. Net capital outflows fall, the interest rate falls, and the exchange rate appreciates

D. Net capital outflows rise, the interest rate rises, and the exchange rate depreciates

Answer: (D)

Explanation

Capital flight increases net capital outflows and shifts the relevant curves to the right, raising the interest rate while depreciating the exchange rate. The opposite pattern would describe increased foreign investment confidence rather than investor fears of instability.

56. What distinguishes business cycles from a fixed-period cycle?

A. Their duration is determined by price adjustments

B. Their lengths are irregular and unpredictable

C. Their changes occur at identical time intervals

D. Their turning points follow a recurring schedule

Answer: (B)

Explanation

Business cycles vary irregularly in length, so their timing cannot be predicted as a fixed schedule. A fixed-period cycle would have predictable intervals between fluctuations.

57. How do macroeconomic quantities typically behave during economic fluctuations?

A. They change by identical amounts at precisely the same moment

B. They often move together, with correlations that may differ in size or timing

C. They move independently, with no systematic relationship across series

D. They follow opposite movements whenever output changes direction

Answer: (B)

Explanation

Many macroeconomic series are positively or negatively correlated, although their magnitudes and lags can differ. This means they need not move by the same amount or at exactly the same time.

58. According to Okun’s law, what usually happens when an economy’s output falls?

A. Prices rise while employment expands

B. Unemployment rises as output declines

C. Unemployment falls as output declines

D. Investment rises while output contracts

Answer: (B)

Explanation

Okun’s law describes the robust inverse relationship between output and unemployment: falling output is associated with rising unemployment. It does not predict that unemployment falls during an output contraction.

59. Why can real economic activity respond to nominal shocks in the short run but not generally in the long run?

A. Long-run monetary neutrality disappears because firms face persistent nominal shocks

B. Short-run prices and wages adjust immediately, while long-run contracts create rigidity

C. Short-run price and wage rigidities prevent nominal and real variables from separating

D. Long-run output responds to money because wages and prices remain fixed

Answer: (C)

Explanation

In the short run, rigid prices and wages allow nominal shocks to affect real activity. Over the long run, adjustment supports the classical dichotomy and monetary neutrality.

60. Which expression represents the expenditure identity for aggregate demand?

A. $Y=C+I+S+T$

B. $Y=I+G+T-NX$

C. $Y=C+S+T+M$

D. $Y=C+I+G+NX$

Answer: (D)

Explanation

Aggregate demand spending is expressed as consumption plus investment plus government purchases plus net exports, or $Y=C+I+G+NX$. The other expressions substitute variables that do not form this identity.

61. How does an increase in the price level affect the responsive components of aggregate demand?

A. It increases consumption, investment, and net exports through stronger purchasing power

B. It reduces government purchases while leaving private spending broadly unchanged

C. It increases net exports because domestic goods become more competitive abroad

D. It reduces consumption, investment, and net exports through separate channels

Answer: (D)

Explanation

A higher price level reduces consumption through the wealth effect, investment through higher interest rates, and net exports through reduced international competitiveness. Government purchases are independent of the price level in this model.

62. Which change shifts the aggregate demand curve to the right?

A. A fall in foreign demand for domestic goods

B. An increase in government purchases

C. A decrease in household consumption

D. A reduction in business investment

Answer: (B)

Explanation

Higher government purchases increase demand at each price level and shift aggregate demand rightward. The other changes reduce one of the components of demand and shift the curve leftward.

63. How does a negative supply shock differ from a negative demand shock?

A. A negative supply shock raises prices and lowers production, while a negative demand shock lowers both

B. A negative supply shock lowers prices and raises production, while a negative demand shock raises both

C. Both shocks raise prices and production because firms respond with greater output

D. Both shocks lower prices and production because either one reduces spending

Answer: (A)

Explanation

A negative supply shock shifts aggregate supply left, raising prices and reducing production. A negative demand shock shifts aggregate demand left, lowering both output and prices.

64. Why does liquidity preference theory identify the interest rate as the main determinant of money demand?

A. It directly determines the amount of currency created by the central bank

B. It represents the value of goods purchased with each unit of money

C. It measures the opportunity cost of holding money rather than interest-bearing assets

D. It measures the income earned from holding liquid balances

Answer: (C)

Explanation

The interest rate is the opportunity cost of holding money because money generally does not earn the return available from interest-bearing assets. Income and wealth can also affect money demand, but through different channels.

65. What sequence follows an increase in the price level in the money-demand model?

A. Money demand falls, interest rates fall, and aggregate demand rises

B. Money demand rises, interest rates fall, and aggregate demand rises

C. Money supply rises, interest rates fall, and aggregate demand rises

D. Money demand rises, interest rates rise, and aggregate demand falls

Answer: (D)

Explanation

A higher price level increases money demand, shifting its curve right and raising the equilibrium interest rate, which reduces consumption and investment. The resulting decline in aggregate demand contrasts with the effects of an expansion in money supply.

66. What is the short-run effect of an expansionary central-bank intervention?

A. It increases money supply, lowers interest rates, and raises output and prices

B. It decreases money supply, raises interest rates, and lowers output and prices

C. It increases money supply, raises interest rates, and lowers private spending

D. It decreases money supply, lowers interest rates, and raises output and prices

Answer: (A)

Explanation

Expansionary intervention raises the money supply, lowering the equilibrium interest rate and increasing demand at each price level. Higher demand raises equilibrium production and the price level in the short run.

67. Which tools can a central bank use when the zero lower bound prevents further reductions in its target interest rate?

A. Quantitative easing and forward guidance

B. Restrictions on exports and limits on household borrowing

C. Reduced government purchases and lower tax incentives

D. Higher reserve requirements and tighter credit standards

Answer: (A)

Explanation

When the target rate cannot be reduced further, quantitative easing and forward guidance provide alternative ways to support financial conditions and demand. The other choices do not identify the monetary-policy tools specified for this constraint.