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1、Chapter 23/Measuring a Nations Income408 Quick Quizzes:1.Gross domestic product measures two things at once: (1) the total income of everyone in the economy and (2) the total expenditure on the economys output of final goods and services. It can measure both of these things at once because all expen
2、diture in the economy ends up as someones income.2.The production of a pound of caviar contributes more to GDP than the production of a pound of hamburger because the contribution to GDP is measured by market value and the price of a pound of caviar is much higher than the price of a pound of hambur
3、ger.3.The four components of expenditure are: (1) consumption; (2) investment; (3) government purchases; and (4) net exports. The largest component is consumption, which accounts for more than 70 percent of total expenditure.4.Real GDP is the production of goods and services valued at constant price
4、s. Nominal GDP is the production of goods and services valued at current prices. Real GDP is a better measure of economic well-being because changes in real GDP reflect changes in the amount of output being produced. Thus, a rise in real GDP means people have produced more goods and services, but a
5、rise in nominal GDP could occur either because of increased production or because of higher prices.5.Although GDP is not a perfect measure of well-being, policymakers should care about it because a larger GDP means that a nation can afford better healthcare, better educational systems, and more of t
6、he material necessities of life.Questions for Review: 1.An economys income must equal its expenditure, because every transaction has a buyer and a seller. Thus, expenditure by buyers must equal income by sellers.2.The production of a luxury car contributes more to GDP than the production of an econo
7、my car because the luxury car has a higher market value.3.The contribution to GDP is $3, the market value of the bread, which is the final good that is sold.4.The sale of used records does not affect GDP at all because it involves no current production.5.The four components of GDP are consumption, s
8、uch as the purchase of a DVD; investment, such as the purchase of a computer by a business; government purchases, such as an order for military aircraft; and net exports, such as the sale of American wheat to Russia. (Many other examples are possible.)6.Economists use real GDP rather than nominal GD
9、P to gauge economic well-being because real GDP is not affected by changes in prices, so it reflects only changes in the amounts being produced. You cannot determine if a rise in nominal GDP has been caused by increased production or higher prices.7.YearNominal GDPReal GDPGDP Deflator2010100 X $2 =
10、$200100 X $2 = $200($200/$200) X 100 = 1002011200 X $3 = $600200 X $2 = $400($600/$400) X 100 = 150The percentage change in nominal GDP is (600 200)/200 x 100% = 200%. The percentage change in real GDP is (400 200)/200 x 100% = 100%. The percentage change in the deflator is (150 100)/100 x 100% = 50
11、%.8.It is desirable for a country to have a large GDP because people could enjoy more goods and services. But GDP is not the only important measure of well-being. For example, laws that restrict pollution cause GDP to be lower. If laws against pollution were eliminated, GDP would be higher but the p
12、ollution might make us worse off. Or, for example, an earthquake would raise GDP, as expenditures on cleanup, repair, and rebuilding increase. But an earthquake is an undesirable event that lowers our welfare.Problems and Applications1.a.Consumption increases because a refrigerator is a good purchas
13、ed by a household.b.Investment increases because a house is an investment good.c.Consumption increases because a car is a good purchased by a household, but investment decreases because the car in Fords inventory had been counted as an investment good until it was sold.d.Consumption increases becaus
14、e pizza is a good purchased by a household.e.Government purchases increase because the government spent money to provide a good to the public.f.Consumption increases because the bottle is a good purchased by a household, but net exports decrease because the bottle was imported.g.Investment increases
15、 because new structures and equipment were built.2.With transfer payments, nothing is produced, so there is no contribution to GDP.3.If GDP included goods that are resold, it would be counting output of that particular year, plus sales of goods produced in a previous year. It would double-count goods that were sold more than once and would count goods in GDP for several years if they were produced in one year and resold in another.4.a.Calculating nominal GDP:2010: ($1 per qt. of milk 100 qts. milk) + ($2 per qt. of honey 50 qts. honey) = $2002011: ($1 per qt. of milk 200 qts. milk
