📖 点击查看答案Consumer surplus is the difference between the highest price a consumer is willing to pay for a good or service and the actual price they pay.
消费者剩余是指消费者愿意支付的最高价格与实际支付价格之间的差额。
2. How is consumer surplus represented on a demand curve? (消费者剩余如何在需求曲线上表示？)
📖 点击查看答案Consumer surplus is represented by the area below the demand curve and above the market price.
消费者剩余表示为需求曲线下方与市场价格上方的区域。
3. What happens to consumer surplus when the price of a good decreases? (当商品价格下降时，消费者剩余会发生什么变化？)
📖 点击查看答案Consumer surplus increases because consumers pay a lower price while still receiving the same benefit from the good.
消费者剩余增加，因为消费者支付的价格降低了，但仍然获得相同的商品效用。
4. What is producer surplus? (什么是生产者剩余？)
📖 点击查看答案Producer surplus is the difference between the price a seller actually receives for a good or service and the lowest price they are willing to accept.
生产者剩余是指卖方实际收到的价格与其愿意接受的最低价格之间的差额。
5. How is producer surplus represented on a supply curve? (生产者剩余如何在供给曲线上表示？)
📖 点击查看答案Producer surplus is represented by the area above the supply curve and below the market price.
生产者剩余表示为供给曲线上方与市场价格下方的区域。
6. What happens to producer surplus when the price of a good increases? (当商品价格上升时，生产者剩余会发生什么变化？)
📖 点击查看答案Producer surplus increases because sellers receive a higher price for the same quantity of goods.
生产者剩余增加，因为卖方以更高的价格出售相同数量的商品。
7. What is the definition of economic efficiency? (经济效率的定义是什么？)
📖 点击查看答案Economic efficiency occurs when the marginal benefit of the last unit sold equals the marginal cost of production.
经济效率是指最后一单位商品的边际收益等于其生产的边际成本。
8. What is the equilibrium price in a competitive market? (竞争市场中的均衡价格是什么？)
📖 点击查看答案The equilibrium price is the price at which the quantity demanded equals the quantity supplied.
均衡价格是指需求量等于供给量的价格。
9. Why does marginal cost tend to increase as more of a good is produced? (为什么随着商品产量的增加，边际成本通常会上升？)
📖 点击查看答案Because additional production requires more resources, which may become more expensive or less efficient to use.
因为额外的生产需要更多资源，而这些资源可能变得更昂贵或使用效率降低。
10. What happens if output is below the efficient level? (如果产量低于效率水平，会发生什么？)
📖 点击查看答案There is a loss of potential benefits, as additional units could be produced where the marginal benefit is greater than the marginal cost.
潜在收益减少，因为仍有边际收益大于边际成本的单位可以生产。
11. What happens if output exceeds the efficient level? (如果产量超过效率水平，会发生什么？)
📖 点击查看答案Resources are wasted because additional units are produced where the marginal cost is greater than the marginal benefit.
资源被浪费，因为生产的额外单位的边际成本大于边际收益。
12. How do competitive markets maximize total surplus? (竞争市场如何最大化总剩余？)
📖 点击查看答案By allocating resources efficiently so that marginal benefit equals marginal cost.
通过有效配置资源，使边际收益等于边际成本。
13. What is total surplus? (什么是总剩余？)
📖 点击查看答案Total surplus is the sum of consumer surplus and producer surplus.
总剩余是消费者剩余和生产者剩余的总和。
14. How does price control affect market efficiency? (价格管制如何影响市场效率？)
📖 点击查看答案Price controls, such as price ceilings and floors, create shortages or surpluses, leading to inefficiency.
价格管制（如价格上限和价格下限）会造成短缺或过剩，从而导致市场低效。
15. What is the deadweight loss? (什么是无谓损失？)
📖 点击查看答案Deadweight loss is the loss of total surplus due to market inefficiencies such as price controls or taxation.
无谓损失是由于市场低效（如价格管制或税收）导致的总剩余损失。
16. What is a price ceiling? (什么是价格上限？)
📖 点击查看答案A price ceiling is a legally established maximum price that sellers can charge for a good or service.
价格上限是法律规定的卖方可以收取的最高价格。
17. What effect does a binding price ceiling have on the market? (有效的价格上限对市场有什么影响？)
📖 点击查看答案It creates a shortage because the quantity demanded exceeds the quantity supplied.
它会导致短缺，因为需求量大于供给量。
18. What is a price floor? (什么是价格下限？)
📖 点击查看答案A price floor is a legally established minimum price that buyers must pay for a good or service.
价格下限是法律规定的买方必须支付的最低价格。
19. What happens when a price floor is set above equilibrium price? (当价格下限高于均衡价格时会发生什么？)
📖 点击查看答案It creates a surplus because the quantity supplied exceeds the quantity demanded.
它会导致过剩，因为供给量大于需求量。
20. What is producer surplus when the marginal cost of producing a cup of tea is 1.25andthemarketpriceis2.00? (当生产一杯茶的边际成本为1.25，而市场价格为2.00时，生产者剩余是多少？)
📖 点击查看答案$0.75, which is the difference between the price received and the marginal cost.
$0.75，即卖方实际收到的价格与边际成本之间的差额。
21. What is the relationship between supply curves and marginal cost curves? (供给曲线和边际成本曲线之间的关系是什么？)
📖 点击查看答案The supply curve represents the marginal cost of production for each additional unit.
供给曲线表示每增加一个单位的边际生产成本。
22. What is the efficient level of output in a competitive market? (竞争市场中的有效产出水平是多少？)
📖 点击查看答案It is the level at which marginal benefit equals marginal cost.
是边际收益等于边际成本的水平。
23. How does an increase in demand affect producer surplus? (需求增加如何影响生产者剩余？)
📖 点击查看答案It increases producer surplus because the price of the good rises.
它会增加生产者剩余，因为商品价格上升。
24. What happens to total surplus when a market is in equilibrium? (当市场处于均衡状态时，总剩余会发生什么变化？)
📖 点击查看答案Total surplus is maximized, meaning resources are allocated efficiently.
总剩余达到最大值，意味着资源被高效配置。
25. What is the primary assumption of a perfectly competitive market? (完全竞争市场的主要假设是什么？)
📖 点击查看答案There are many buyers and sellers, and no single firm can influence the market price.
市场上有许多买方和卖方，且没有单个公司可以影响市场价格。
26. What is the role of prices in a competitive market? (价格在竞争市场中的作用是什么？)
📖 点击查看答案Prices act as signals that guide the allocation of resources.
价格作为信号，引导资源的配置。
27. What happens if the government imposes a tax on sellers? (如果政府对卖方征税会发生什么？)
📖 点击查看答案Supply decreases, and the price paid by buyers increases.
供给减少，买方支付的价格上升。
28. How does a tax affect total surplus? (税收如何影响总剩余？)
📖 点击查看答案Total surplus decreases due to deadweight loss.
总剩余减少，因为存在无谓损失。
29. What is the effect of a subsidy on market equilibrium? (补贴对市场均衡的影响是什么？)
📖 点击查看答案It increases supply, lowers prices for consumers, and raises producer surplus.
它增加供给，降低消费者支付的价格，提高生产者剩余。
30. Why is a monopoly considered inefficient? (为什么垄断被认为是低效的？)
📖 点击查看答案Because it restricts output and raises prices, creating deadweight loss.
因为它限制产量并提高价格，从而造成无谓损失。
31. What is allocative efficiency? (什么是资源配置效率？)
📖 点击查看答案It occurs when the mix of goods and services produced matches consumer preferences.
当生产的商品和服务组合与消费者偏好相匹配时，就实现了资源配置效率。
32. What is productive efficiency? (什么是生产效率？)
📖 点击查看答案It occurs when goods and services are produced at the lowest possible cost.
当商品和服务以最低的成本生产时，就实现了生产效率。
33. What happens when a market is in disequilibrium? (当市场处于非均衡状态时，会发生什么？)
📖 点击查看答案There is either a surplus or a shortage.
市场上会出现过剩或短缺。
34. What is the impact of an increase in input costs on supply? (生产要素成本增加对供给的影响是什么？)
📖 点击查看答案Supply decreases because production becomes more expensive.
供给减少，因为生产变得更昂贵。
35. What is the law of diminishing marginal returns? (什么是边际收益递减规律？)
📖 点击查看答案As additional units of a variable input are added to fixed inputs, the additional output eventually decreases.
当额外的可变要素投入到固定要素中时，额外产出最终会减少。
36. What is a public good? (什么是公共物品？)
📖 点击查看答案A good that is non-excludable and non-rival in consumption.
一种不可排他且非竞争性的商品。
37. What is market failure? (什么是市场失灵？)
📖 点击查看答案Market failure occurs when the market does not allocate resources efficiently.
市场失灵是指市场未能有效配置资源。
38. What are externalities? (什么是外部性？)
📖 点击查看答案Costs or benefits affecting third parties not involved in a transaction.
影响交易外第三方的成本或收益。
39. What is the free-rider problem? (什么是搭便车问题？)
📖 点击查看答案When individuals benefit from a good without paying for it.
个人在未支付成本的情况下享受某种商品的好处。
40. What is the tragedy of the commons? (什么是公地悲剧？)
📖 点击查看答案Overuse of a common resource due to lack of ownership.
由于缺乏所有权，共享资源被过度使用。