eing a movie? 评分规则: 【 The opportunity co
01 What Economics Is All About Ch1-Quiz
1、 问题:An important element of the market process is that ( )
选项：
A:although people trade voluntarily， one party “wins” and the other party “loses”.
B:the government determines the extent of market activity in order for all parties to benefit.
C:people are better off if they are self-sufficient than if they trade with others in the market.
D:people trade voluntarily and all parties expect to benefit.
答案: 【people trade voluntarily and all parties expect to benefit.】
2、 问题:Adam Smith argues in The Wealth of Nations that an economy will produce more goods and services if ( )
选项：
A:people act in the public interest than if they act selfishly.
B:people act selfishly， than if the government directs economic activity.
C:the government controls the use of the nation’s scarce resources.
D:people ignore their own interests and contribute to national wealth as a whole.
答案: 【people act selfishly， than if the government directs economic activity.】
3、 问题:Which of the following activities would occur in a market for factors of production? ( )
选项：
A:Reesa buys a new computer to help balance her personal checkbook.
B:Randy pays a speeding ticket.
C:Ian mows his grass.
D:General Motors hires additional workers to run a third-shift at a factory.
答案: 【General Motors hires additional workers to run a third-shift at a factory.】
4、 问题:Which of the following activities would occur in a market for goods and services? ( )
选项：
A:Harry mows his grass.
B:General Motors hires additional workers to run a third shift at a factory.
C:Jane bakes pies for Thanksgiving dinner.
D:Dolly buys a ticket to a ball game.
答案: 【Dolly buys a ticket to a ball game.】
5、 问题:An economic model is ( )
选项：
A:a mechanical machine that replicates the functioning of the economy.
B:a fully detailed， realistic description of the economy.
D:a computer program that predicts the future of the economy.
答案: 【a simplified representation of some aspect of the economy.】
6、 问题:The circular-flow diagram illustrates that， in markets for the factors of production， ( )
选项：
A:households are sellers， and firms are buyers.
B:households are buyers， and firms are sellers.
C:households and firms are both buyers.
D:households and firms are both sellers.
答案: 【households are sellers， and firms are buyers.】
7、 问题:A point inside the production possibilities frontier is ( )
选项：
A:efficient， but not feasible.
B:feasible， but not efficient.
C:both efficient and feasible.
D:neither efficient nor feasible.
答案: 【feasible， but not efficient.】
8、 问题:An economy produces hot dogs and hamburgers. If a discovery of the remarkable health benefits of hot dogs were to change consumers’ preferences， it would ( )
选项：
A:expand the production possibilities frontier.
B:contract the production possibilities frontier.
C:move the economy along the production possibilities frontier.
D:move the economy inside the production possibilities frontier.
答案: 【move the economy along the production possibilities frontier.】
9、 问题:All of the following topics fall within the study of microeconomics EXCEPT ( )
选项：
A:the impact of cigarette taxes on the smoking behavior of teenagers.
B:the role of Microsoft’s market power in the pricing of software.
C:the effectiveness of antipoverty programs in reducing homelessness.
D:the influence of the government budget deficit on economic growth.
答案: 【the influence of the government budget deficit on economic growth.】
10、 问题:Which of the following is a positive， rather than a normative， statement? ( )
选项：
A:Law X will reduce national income.
B:Law X is a good piece of legislation.
C:Congress ought to pass law X.
D:The president should veto law X.
答案: 【Law X will reduce national income.】
【作业】01 What Economics Is All About Ch1-Homework
1、 问题:What is the opportunity cost of seeing a movie?
评分规则: 【 The opportunity cost of seeing a movie includes the monetary cost of admission plus the time cost of going to the theater and attending the show. The time cost depends on what else you might do with that time; if it is staying home and watching TV， the time cost may be small， but if it is working an extra three hours at your job， the time cost is the money you could have earned.
】
2、 问题:Should an economic model describe reality exactly?
评分规则: 【 An economic model cannot describe reality exactly because it would be too complicated to understand. A model is a simplification that allows the economist to see what is truly important.
】
3、 问题:What is the opportunity cost of seeing a movie?
评分规则: 【 The opportunity cost of seeing a movie includes the monetary cost of admission plus the time cost of going to the theater and attending the show. The time cost depends on what else you might do with that time; if it is staying home and watching TV， the time cost may be small， but if it is working an extra three hours at your job， the time cost is the money you could have earned.
】
4、 问题:Should an economic model describe reality exactly?
评分规则: 【 An economic model cannot describe reality exactly because it would be too complicated to understand. A model is a simplification that allows the economist to see what is truly important.
】
02 The Market Forces of Supply and Demand Ch2-Quiz
1、 问题:In a perfectly competitive market， ( )
选项：
A:advertising is widely used to influence demand and price.
B:firms are price takers rather than price makers.
C:firms produce a small number of differentiated products.
D:a small number of firms produce an identical product.
答案: 【firms are price takers rather than price makers.】
2、 问题:An increase in _ will cause a movement along a given demand curve， which is called a change in _. ( )
选项：
A:supply， demand
B:supply， quantity demanded
C:demand， supply
D:demand， quantity supplied
答案: 【supply， quantity demanded】
3、 问题:Movie tickets and DVDs are substitutes. If the price of DVDs increases， what happens in the market for movie tickets? ( )
选项：
A:The supply curve shifts to the left.
B:The supply curve shifts to the right.
C:The demand curve shifts to the left.
D:The demand curve shifts to the right.
答案: 【The demand curve shifts to the right.】
4、 问题:The discovery of a large new reserve of crude oil will shift the _ curve for gasoline， leading to a _ equilibrium price. ( )
选项：
A:supply， higher
B:supply， lower
C:demand， higher
D:demand， lower
答案: 【supply， lower】
5、 问题:If the economy goes into a recession and incomes fall， what happens in the markets for inferior goods? ( )
选项：
A:Prices and quantities both rise.
B:Prices and quantities both fall.
C:Prices rise， quantities fall.
D:Prices fall， quantities rise.
答案: 【Prices and quantities both rise.】
6、 问题:Which of the following might lead to an increase in the equilibrium price of jelly and a decrease in the equilibrium quantity of jelly sold? ( )
选项：
A:an increase in the price of peanut better， a complement to jelly
B:an increase in the price of Marshmallow Fluff， a substitute for jelly
C:an increase in the price of grapes， an input into jelly
D:an increase in consumers’ incomes， as long as jelly is a normal good
答案: 【an increase in the price of grapes， an input into jelly】
7、 问题:Suppose that the demand for apples increased more than the supply of apples increased. The net effect of these two changes would be a(n) ( )
选项：
A:increase in the equilibrium price and a decrease in the equilibrium quantity.
B:increase in the equilibrium price and an increase in the equilibrium quantity.
C:decrease in the equilibrium price and an increase in the equilibrium quantity.
D:decrease in the equilibrium price and a decrease in the equilibrium quantity.
答案: 【increase in the equilibrium price and an increase in the equilibrium quantity.】
8、 问题:If a drought destroyed half of theU.S.garlic crop at a time when the health benefits of garlic were being well-publicized， economists would expect that in the market for garlic ( )
选项：
A:quantity exchanged would rise but the change in price is uncertain without further information.
B:price would rise but the change in quantity exchanged is uncertain without further information.
C:both price and quantity exchanged would rise.
D:price would rise and quantity exchanged would fall.
答案: 【price would rise but the change in quantity exchanged is uncertain without further information.】
9、 问题:Temporary shortages in a market are eliminated by ( )
选项：
A:decreases in the price， which cause quantity supplied to fall and quantity demanded to rise.
B:decreases in the price， which cause quantity supplied to rise and quantity demanded to fall.
C:increases in the price， which cause quantity supplied to fall and quantity demanded to rise.
D:increases in the price， which cause quantity supplied to rise and quantity demanded to fall.
答案: 【increases in the price， which cause quantity supplied to rise and quantity demanded to fall.】
10、 问题:When a market is in equilibrium， ( )
选项：
A:quantity demanded will equal quantity supplied.
B:a shortage will be present.
C:a surplus will be present.
D:sellers will continue to expand production to increase revenues.
答案: 【quantity demanded will equal quantity supplied.】
【作业】02 The Market Forces of Supply and Demand Ch2-Homework
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st of seeing a movie includes the moneta