A. DOES IT COST THE SAME FOR EVERY HOUSEHOLD？B. YOU CAN PAY RIGHT HERE, ON THE INTERNET!

—How much does a radio like this cost？ rn—__________.

A、I’d like to buy it

B、it’s of very good quality

C、About eighty-five dollars

D、It depends on how you like it

A．How

much does it come on

B．How

much is it

C．How

much does it cost

D．What’s

the price of it

A、How many is it

B、How much is it

C、How much does it cost

D、What’s the price

—How much does a radio like this cost？ —__________.

A、I’d like to buy it

B、it’s of very good quality

C、About eighty-five dollars

D、It depends on how you like it

苹果每个1美元，阿贝购买10个青苹果。

a．计算每年苹果的消费者物价指数。假设第一年是基年，消费者的篮子固定在基年。从第1年到第2年，你计算的指数如何变动？

b．计算阿贝每年对苹果的名义支出。从第一年到第二年，这种名义支出有什么变动？

c．把第一年作为基年，计算阿贝每年对苹果的实际支出。从第一年到第二年，这种实际支出有什么变动？

d．把隐含的物价平减指数定义为名义支出除以实际支出，计算每年的平减指数。从第一年到第二年，平减指数有什么变动？

e．假设阿贝吃红苹果或青苹果同样快乐。阿贝的真实生活费用增加了多少？比较这一答案和你对(a)与(b)的答案。这个例子告诉了你关于拉斯派尔和帕氏物价指数的什么？

Abby consumes only apples. In year 1, red apples cost ＄1 each, green apples cost ＄2 each, and Abby buys 10 red apples. In year 2, red apples cost ＄2, green apples cost ＄1, and Abby buys 10 green apples.

a．Compute a consumer price index for apples for each year. Assume that year 1 is the base year in which the consumer basket is fixed. How does your index change from year 1 to year 2？

b．Compute Abby's nominal spending on apples in each year. How does it change from year 1 to year 2？

c．Using year 1 as the base year, compute Abby's real spending on apples in each year. How does it change from year 1 to year 2？

d．Defining the implicit price deflator as nominal spending divided by real spending, compute the deflator for each year. How does the deflator change from year l to year 2？

e．Suppose that Abby is equally happy eating red or green apples, How much has the true cost of living increased for Abby？ Compare this answer to your answers to parts (a) and (d). What does this example tell you about Laspeyres and Paasche price indexes？

解释以下说法正确与否:（1)如果一家企业的拥有者不给自己支付工资，则会计成本为零，而经济成本为

解释以下说法正确与否:

(1)如果一家企业的拥有者不给自己支付工资，则会计成本为零，而经济成本为正。

(2)会计利润为正的企业不一定经济利润也为正。

(3)企业雇佣了一些目前处于失业状态的工人，则其使用这些工人服务的机会成本为零。

Please explain whether the following staleness are true or false.

a. If the owner of a business pays himself no salary , then the accounting cost is zero, but the economic cost is positive.

b. A firm that has positive accounting profit does not necessarily have positive economic profit.

c. If a firm hires a currently unemployed worker, the opportunity cost of utilizing the worker' s services is zero.

. Everybody is free to enjoy the benefits of these commodities, and one person' s utilization does not reduce the possibilities of anybody else' s enjoying the same good.

Examples of public goods are not as rare as one might expect. A flood control dam is a public good. Once the dam is built, all persons living in the area will benefit--irrespective of their own contribution to the construction cost of the dam. The same holds true for highway signs or aids to navigation. Once a lighthouse is built, no ship of any nationality can be effectively excluded from the utilization of the lighthouse for navigational purposes. National defense is another example. Even a person who voted against military expenditures or did not pay any taxes will benefit from the protection afforded.

It is no easy task to determine the social costs and social benefits associated with a public good. There is no practicable way of charging drivers for looking at highway signs, sailors for watching a lighthouse, and citizens for the security provided to them through national defense: Because the market does not provide the necessary signals, economic analysis has to be substituted for the impersonal judgement of the marketplace.

With what topic is the passage mainly concerned？

A．Mechanisms for safer navigation.

B．The economic structure of the marketplace.

C．A specific group of commodities.

D．The advantages of lowering taxes.

A.distribution

B.insurance

C.freight

D.tariff