1、CMA Test Prep Part1 Demand部分里第22题答案选D,但我反复思考觉得答案有问题;
我个人觉得没有一个答案是正确的。D的表述不可能使得价格下降,只有将D表述中的quantity demanded改成demand,那么价格就会下降。
2、Test Prep Part 1里面Supply部分的第7题选B,但是答案讲得很复杂,可否请老师提供一个更为清晰的解释呢;
往简单了讲就是,在短期,边际成本曲线是先随着产量的上升而下降,然后再根据产量上升而上升(如下图红线勾勒出的部分);成本随着产量的上升而上升实际上就意味着收益在递减(diminishing reture)。在题解中,第3、4段的解释也是在讲供给曲线中价格和供给量成正比,但是与收益递减关系不大。
3、还有教材Production Cost部分课后习题的第22题,为什么不能选A或者B;相应的,Test Prep Part1 Production Cost部分第2题,正确答案选A-但是我看书里面并没有说Economies of Scale只有Short Run有,所以不是很了解;
|
Q
|
AFC
|
AVC
|
ATC
|
TC
|
MC
|
|
6
|
15
|
25
|
40
|
240
|
|
|
7
|
12.86
|
24
|
36.86
|
258.02
|
18.02
|
|
8
|
11.25
|
23.5
|
34.75
|
278
|
19.98
|
|
9
|
10
|
23.75
|
33.75
|
303.75
|
25.75
|
对于第9个产品的边际成本,实际上就是那9个商品的总成本减去8个商品的总成本就是第9个商品的边际成本。对于题目,你首先要计算出8个和9个商品的总成本,分别是278和303.75,然后再相减即可。
该题的答案好像是B而不是A。该题所要考察的内容是对于成本的理解,和对于决策而言,有哪些考虑因素。规模经济肯定是在考虑范围内的,因为添加自动设备能提高生产规模,因而能使平均成本下降。当前设备的期初投资成本是沉入成本,在决策中,沉入成本是不需要考虑的。机会成本是决策的重要依据。当然,技术效率肯定也属于该决策中的重要考虑因素。所以,只有沉入成本不需要考虑。
4、另外,可不可以请老师讲解一下Long run和Short run部分Price Control的区别,还有Long-Run Average Cost Curve和Short-Run Average Cost Curve的图怎么画..这两个部分书里面讲得不怎么清楚
请告诉你所指的price control具体在书上的那个部分?
Long-run average cost(长期平均成本)如下图,图中的暗红色的线就是long-run average cost。这也是规模经济的图形
Short-run average cost (短期平均成本),如下图,ATC就是短期平均成本曲线
考试对于作图不作要求!
5.在"Medium term floating exchange rates"那讲里提到“对于一国商品的需求减少,会使得对于该国货币的需求减少,进而引发该国货币贬值”, 即Less imports from UK→Less demand for UK→Depreciation of UK.
以上的表述是在讲,就中期而言是什么因素导致了汇率发生变动。比如,如果美国的经济衰退,收入减少,对英国商品的需求减少,进而对英镑需求减少,最后使得英镑相对美元贬值,美元升值;如果美国经济增长,收入增加,对英国商品的需求增加,进而对英镑需求增加,最后使得英镑升值,美元贬值。这些东西都在讲是什么导致美元和英镑的币值发生波动。
6.在CMA Test Prep那本习题集的相应内容的几道题目里都涉及了这么一个观点, e.g. "The decrease in the value of the dollar makes US goods relatively less expensive relative to foreign produced goods and this will increase US exports."
第2点在讲当美元贬值之后,美国商品会变得相对便宜,这回促进美国的出口增加。这是在讲当美元币值发生波动之后会产生什么样的经济结果,而不是在讲是导致了美元币值波动的原因。
上述的两点讲的出发点不一样,第1点是在讲导致币值波动的原因,第2点讲的是币值波动之后会有什么的经济后果。
7.Gifts receivd from abroad在国际贸易收支里,记入Debit的是吗?我的理解是他应该等于进口的。Gleim Review里边191页的第4題我觉得应该-20300+15760-3700-1240,这道题我第一次做的时候是做对的,但是后来怎么看就怎么也想不通了。
在balance of payment 中,你只要记住一个原则,如果有钱或资产流入某国(出口或接收援助),就debit to its account;如果有钱或资产流出某国(进口或对外援助),就credit to its account。Gifts received from abroad属于接收援助 – 资产流入,因此应该debit to its national account.
8.If the annual U.S.inflation rate is expected to be 5% while foreign currency unit(FCU) is excepted to depreciate against the U.S dollar by 10%, and Italian firm importing from its U.S parent can expect its FCU cost for these import to
我的思路是
设1USD=1FCU
a.US Inflation 5%等同于USD 的depreciate 5%,所以1USD=1/(1+.5)FCU,1USD=.95238FCU,1FCU=1.05USD
b.FCU depreciate 10%,所以1FCU=1.05/(1+.1)USD,1FCU=0.9545USD
所以綜合起來,FCU贬值(0.9545-1)/1=5%
但是答案是16.6%,能否告知为什么?
对于此类题目,基本的条件有两个:(1)贬值(或者升值),(2)通胀(或者同缩)。你解题的思路就是:先贬值,再通胀;或者先通胀,后贬值。我下面的题解是先贬值,再通胀
假设两者的汇率为:US:FCU=1:10
先解决FCU贬值10%的问题。要确定FCU贬值,就要用FCU的间接标价法→FCU:US=1:0.1
FCU贬值10%就意味着,FCU购买美元的能力下降10%,即只能购买0.1*90%的美元,因此,贬值后的汇率为FCU:US=1:0.09→US:FCU=1:11.11
然后解决美国通胀的问题。FCU贬值后,美元的间接汇率为US:FCU=1:11.11。美国通胀5%表明,原来1美元的商品,现在要花1.05美元才能买到,因此根据这个关系,US:FCU=1:11.11→通胀5% US:FCU=1.05(1*1.05):11.66(11*1.05)。FCU的价格从原来的10上升到11.66,因此上升幅度为16.6%
9. Brown Industries operates a defined benefit pension plan. Information received from the
actuary and the trustee related to the pension plan includes the following.
Pension benefit obligation, January 1, Year 2 $1,889,000
Service cost 105,000
Interest cost 190,000
Retirement benefits paid 182,000
Employer contribution 155,000
Actual return on plan assets 215,000
Amortization of prior service cost 122,000
Amortization of SFAS 87 transition gain 12,500
Amortization of prior year unrecognized net pension loss 37,000
Fair value - pension plan assets, December 31, Year 1 1,825,000
Brown’s projected benefit obligation at December 31, Year 2, is
a. $1,787,000.
b. $1,969,000.
c. $2,002,000.
d. $2,029,000.
Answer:PBO beginning balance 1,889
+ Service Cost 105
+ Interest Cost 190
- Retirement benefit paid 182
PBO Ending balance = 1,889+105+190-182=2,00
10.On January 1, Rosewater Company leased a computer for four years at a monthly rent of
$80, payable at the end of each month. Due to the rate of technical change, the computer
is expected to become obsolete within five years. At the inception of the lease, the
computer was retailing for $3,450. Had Rosewater chosen to purchase the computer
instead of leasing it, they could have borrowed the funds at 10%. At a 10% interest rate,
the present value of the lease payments is $3,154. Rosewater does not know the rate
implicit in the lease. For the month of January, Rosewater should report (to the closest
dollar) interest expense of
a. $26 and depreciation expense of $66.
b. $0 and rent expense of $80.
c. $29 and depreciation expense of $58.
d. $29 and rent expense of $80.
Answer:Leasing is a long-term concept. So we need to use present value as the calculation basis. In this Question, it told us the present value of the lease payments is $3,154.Thus, interest expense=3,154/ 4/ 12mths = 66
depreciation expense=3,154 * 10% / 12 mths = 26. So we'd choose A.