Economics（经济学）Microeconomic Analysis 微观经济分析：相关习题27 following, increase, decrease, resources, 分析

cfaspace

答案如下

Resources X and Y are substitutes in production, and resources X and Z are complements in production. Which of the following will most likely lead to a fall in the price of X? A(an):
A) decrease in the price of Y and an increase in the price of Z.
B) increase in the price of Y and an increase in the price of Z.
C) decrease in the price of Y and a decrease in the price of Z.
D) increase in the price of Y and a decrease in the price of Z.

The correct answer was A) decrease in the price of Y and an increase in the price of Z.
If X and Y are substitutes, then a fall in the price of Y will lower the demand for X and lower its price. An increase in the price of Z, which is used with X, will lower the demand for X and lower its price. In each of the other pairs of events in the other answers, at least one of the pairs will give upward pressure on the price of X.

maplivy

should be c?

777888

Q1、Which statement about renewable and non-renewable resources is most accurate?
A)   Land is considered a renewable resource.
B)   The supply curve for a non-renewable resource is perfectly elastic and the price is determined by demand for it.
C)   The known stock of a non-renewable resource must decrease as the resource is used.
Correct answer is A)
Land is considered a renewable resource because using it in the present does not prevent its use in the future. The known stock of a non-renewable resource is fixed in the short term, but can increase in the long term as technology makes more of the resource accessible. The supply curve for a non-renewable resource is perfectly elastic at that price, and the quantity supplied is determined by demand.
Q2、Which of the following best describes the elasticities of supply for renewable and non-renewable resources?
          Renewable resource                   Non-renewable resource

A)   Perfectly inelastic                                 Perfectly elastic
B)   Inelastic                                                 Perfectly inelastic
C)   Perfectly elastic                                    Perfectly inelastic
Correct answer is A)
The supply (flow) of a renewable resource is fixed at any point in time. Therefore the supply is independent of price, or perfectly inelastic. Supply (stock) of a non-renewable resource is perfectly elastic, as the resource is supplied from its known stock at a price equal to the present value of its expected price in the next period.
Q3、The supply of a renewable resource is:
A)   independent of price and perfectly elastic.
B)   dependent on price and relatively elastic.
C)   independent of price and perfectly inelastic.
Correct answer is C)
The supply of renewable resources over a period of time is fixed. The supply of renewable resources is, therefore, independent of price and perfectly inelastic

coladad

答案是d吗？

gaoflex

thank you.

zsd425

 谢谢

yi913

a

yi913

see

alouette1986

 a

amazingkla

a