机会成本 Opportunity cost

机会成本的定义英语The Definition of Opportunity CostOpportunity cost is defined as the value of the next best alternative that is given up when a decision is made. It represents the benefits that could have been obtained from the alternative choice that was not selected.For instance, suppose you have two options: Option A is to invest your money in stocks, which might potentially yield a high return but also comes with risks; Option B is to deposit the money in a bank with a relatively stable but lower interest rate. If you choose Option A, the opportunity cost would be the certain and stable interest income you would have received from depositing the money in the bank (Option B).Translation:机会成本的定义机会成本被定义为在做出一项决策时所放弃的次优选择的价值。

它体现了未被选中的替代选择原本可能带来的收益。

例如，假设你有两个选择：选项A是将你的钱投资于股票，这可能会带来高回报但也存在风险；选项B是将钱存入银行，能获得相对稳定但利率较低的收益。

国际经济学之名词解释Chapter 31.Absolute advantage（绝对优势）:A country has an absolute advantage ina production of a good if it has a lower unit labor requirement(aLW 单位产品劳动投入) than the foreign country in this good.parative Advantage（相对优势）: A country has a comparative advantage in producing a good if the opportunity cost of producing that good in terms of other goods is lower in that country than it is in other countries.3.Opportunity Cost（机会成本）：The opportunity cost of roses in terms of computers is the number of computers that could be produced with the same resources as a given number of roses.4.The unit labor requirement： the number of hours of labor required to produce one unit of output, such as aLW (wine) and aLC (cheese)5.Production Possibilities frontier（生产可能性边界）： The production possibility frontier (PPF) of an economy shows the maximum amount of a good (say wine) that can be produced for any given amount of another (say cheese).Chapter 41.Abundant factor: the resource of which a country has a relatively large supply(labor in home,land in foreign)2.Biased expansion of production possibilities: when the production possibility frontier shifts out much more in one direction than in the other.3.Equalization of factor prices: when Home and Foreign trade, the relatives prices of goods converge. This convergence, in turn, causes convergence of the relative prices of land and labor.4.Heckscher-Ohlin theory: It shows that comparative advantage is influenced by Relative factor abundance (refers to countries) and Relative factor intensity (refers to goods)It is also referred to as the factor-proportions theory.5.Scarce factor: in that country, and the resource of which it has a relatively small supply( land in Home, labor in foreign)Chapter 51.Biased growth: Biased growth takes place when TT (a country’s production possibility frontier) shifts out more in one direction than in the other.2.Isovalue lines(等价线) : It is a line along which the market value of output is constant by an equation of the form: PCQC ＋ PFQF = V. The higher values of output, the farther out an isovalue line lies.3.Indifference curves（无差异曲线）: Each traces（表明） a set of combinations of cloth (C) and food (F) consumption that leave the individual equally well off.4.Terms of trade : The price of the good a country initially exports divided by the price of the good it initially imports.5.Export-biased（出口偏向） growth: home experiences growth biased toward cloth and disproportionately expands a country’s PP in the direction of the good it exports.6.Import-biased growth （进口偏向）: It disproportionately expands a country’s PP in the direction of the good it imports.7.Immiserizing growth （贫困化的经济增长）: A situation where export-biased growth by poor nations can worsen their terms of trade so much that they would be worse off than if they had not grown at all.8. Import tariffs are taxes levied on imports9.External price: goods are traded internationally10.Export subsidy(出口补贴）：payments given to domestic producers who sell a good abroad.Chapter 61.Dumping(倾销): the most common form of price discrimination in international trade.2.External economies of scale(外部规模经济) :the cost per unit depends on the size of the industry but not necessarily on the size of any one firm.3.Infant industry argument: the argument for temporary protection of industries to enable them to gain expensive.4.Internal economies of scale(内部规模经济) the cost per unit depends on the size of an individual firm but not necessarily on that of the industry.5.Interindustry trade: the exchange of manufactures for food.6.Intraindustry trade: the exchange of manufactures for manufactures.7.Knowledge spillovers: Knowledge is one of the important input factors in highly innovative industries.bor market pooling（劳动力共享市场）: A cluster of firms can createa pooled market for workers with highly specialized skills.9.Oligopoly（寡头垄断） : There are several firms, each of which is large enough to affect prices, but none with an uncontested monopoly.10.Price discrimination: The practice of charging different customers different prices.Chapter 71.Direct foreign investment: international capital flows in which a firm in one country creates or expands a subsidiary in another.2.Factor movements: international movements of factors of production.3.Intertemporal production possibility frontier跨时生产可能性: Imagine an economy that consumes only one good and will exist for only two periods, which we will call present and future.Chapter 81.Ad valorem tariff(从价关税): taxes that are levied as a fraction of the value of the imported goods.2.Consumption distortion loss（消费扭曲损失）: a tariff leads consumers to consume too little of the good.3.Export restraint: Limit the quantity of exports.4.Nontariff barriers: modern governments usually prefer to protect domestic industries.5.Production distortion loss（生产扭曲损失）:the tariff leads domestic producers to produce too much of this good.6.Specific tariff:(从量关税):taxes that are levied as a fixed charge for each unit of goods imported.Chapter 91.Optimum tariff （最优关税）：by convention the phrase optimum tariff is usually used to refer to the tariff justified bu a terms of trade argument rather than to the best tariff given all possible considerations.。

经济学常用英语词汇一、一般术语英文中文economist经济学家scarcity稀缺性opportunity cost机会成本marginal边际的utility效用efficiency效率equity公平trade-off权衡incentive激励externality外部性二、经济体系英文中文socialist economy社会主义经济capitalist economy资本主义经济collective economy集体经济planned economy计划经济market economy市场经济mixed economy混合经济liberal economy自由经济protectionism保护主义autarchy闭关自守globalization全球化三、经济学分支英文中文microeconomics微观经济学macroeconomics宏观经济学political economy政治经济学development economics发展经济学international economics国际经济学labor economics劳动经济学environmental economics环境经济学英文中文industrial economics工业经济学public economics公共经济学behavioral economics行为经济学四、市场结构英文中文perfect competition完全竞争monopoly垄断oligopoly寡头垄断monopolistic competition垄断竞争duopoly双寡头cartel卡特尔collusion勾结price discrimination价格歧视price leadership价格领导contestable market可竞争市场五、供求理论英文中文demand需求supply供给equilibrium均衡surplus过剩shortage不足elasticity弹性price elasticity of demand需求价格弹性income elasticity of demand需求收入弹性cross elasticity of demand需求交叉弹性price elasticity of supply供给价格弹性六、成本收益分析英文中文cost成本benefit收益total cost总成本fixed cost固定成本variable cost可变成本average cost平均成本marginal cost边际成本total revenue总收入average revenue平均收入marginal revenue边际收入七、国际贸易英文中文trade贸易export出口import进口tariff关税quota配额subsidy补贴exchange rate汇率balance of trade贸易差额balance of payments国际收支comparative advantage比较优势八、货币银行英文中文money货币currency货币bank银行deposit存款loan贷款interest利息interest rate利率inflation通货膨胀deflation通货紧缩monetary policy货币政策九、财政政策英文中文fiscal policy财政政策budget预算revenue收入expenditure支出tax税income tax所得税value added tax增值税sales tax销售税budget deficit预算赤字budget surplus预算盈余十、经济指标英文中文gross domestic product国内生产总值gross national product国民生产总值national income国民收入per capita income人均收入unemployment失业unemployment rate失业率economic growth经济增长economic development经济发展business cycle经济周期recession衰退。

微观经济学原理曼昆名词解释稀缺性(scarcity）：社会资源的有限性。

经济学（economics）：研究社会如何管理自己的稀缺资源。

效率（efficiency)：社会能从其稀缺资源中得到最多东西的特性。

平等（equality）：经济成果在社会成员中公平分配的特性。

机会成本（opportunity cost）：为了得到某种东西所必须放弃的东西。

理性人（rational people）：系统而有目的地尽最大努力实现起目标的人。

边际变动(marginal change):对行动计划微小的增量调整。

激励(incentive)：引起一个人做出某种行为的某种东西。

市场经济（market economy）：当许多企业和家庭在物品与劳务市场上相互交易时，通过他们的分散决策配置资源的经济。

产权（property rights)：个人拥有并控制稀缺资源的能力。

市场失灵（market failure）:市场本身不能有效配置资源的情况。

外部性(externality）：一个人的行为对旁观者福利的影响。

市场势力（market power)：一个经济活动者（或经济活动者的一个小集团)对市场价格有显著影响的能力。

生产率（productivity）：一个工人一小时所生产的物品与劳务量.通货膨胀（inflation)：经济中物价总水平的上升。

经济周期（business cycle)：就业和生产等经济活动的波动（就是生产这类经济活动的波动。

)循环流向图(circular-flow diagram）：一个说明货币如何通过市场在家庭与企业之间流动的直观经济模型。

生产可能性边界（production possibilities frontier）：表示一个经济在可得到的生产要素与生产技术既定时所能生产的产量的各种组合的图形.微观经济学（microeconomics）：研究家庭和企业如何做出决策，以及它们在市场上的相互交易.宏观经济学(macroeconomics）：研究整体经济现象，包括通货膨胀、失业和经济增长。