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标题: Reading 66: Portfolio Concepts Los i~1-2 [打印本页]

作者: youzizhang    时间: 2009-4-2 13:03     标题: [2009]Session18-Reading 66: Portfolio Concepts Los i~1-2

 

LOS i: Discuss reasons for and problems related to instability in the minimum-variance frontier.

Q1. What happens to the minimum-variance frontier when:

          return forecasts fall?    covariance forecasts fall?

 

A)    Curve shifts left                 Curve shifts down

B)    Curve shifts down            Curve shifts down

C)    Curve shifts down            Curve shifts left

 

Q2. Analysts trying to compensate for instability in the efficient frontier are least concerned about:

A)   small changes in expected returns.

B)   uncertainty in the forecast of variances and returns.

C)   a sharp rise in earnings restatements.


作者: youzizhang    时间: 2009-4-2 13:03     标题: [2009]Session18-Reading 66: Portfolio Concepts Los i~1-2

 

LOS i: Discuss reasons for and problems related to instability in the minimum-variance frontier. fficeffice" />

Q1. What happens to the minimum-variance frontier when:

          return forecasts fall?    covariance forecasts fall?

 

A)    Curve shifts left                 Curve shifts down

B)    Curve shifts down            Curve shifts down

C)    Curve shifts down            Curve shifts left

Correct answer is

When the expected return forecast declines, the minimum-variance frontier moves down. A decline in covariance forecasts will cause the curve to shift to the left.

 

Q2. Analysts trying to compensate for instability in the efficient frontier are least concerned about:

A)   small changes in expected returns.

B)   uncertainty in the forecast of variances and returns.

C)   a sharp rise in earnings restatements.

Correct answer is C)

Small changes in expected returns can have a large effect on the efficient frontier – in some cases analysts or money managers will take actions to compensate for those effects. Uncertainty in forecasts is of paramount importance to analysts, since an accurate portrayal of the efficient frontier is impossible without accurate estimates. While historical data is often used to extrapolate future values, analysts realize the limitations of such data in forecasting. As such, changes to historical statistics, such as those caused by a flood of restatements, would be of some concern, but less than the other choices.


作者: yy21    时间: 2009-4-23 15:21     标题: 哈哈呵呵哈哈哈哈哈哈哈哈哈哈哈


作者: hkgee    时间: 2009-5-4 13:35

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作者: kuka021    时间: 2009-5-9 01:34

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作者: dandinghe4748    时间: 2009-5-9 10:50     标题: 回复:(youzizhang)[2009]Session18-Reading 66: Po...

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作者: CFA6077653    时间: 2009-5-14 16:45

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作者: harbuzi    时间: 2009-5-16 14:17

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作者: leeyaoxee    时间: 2009-5-17 01:24     标题: 回复:(youzizhang)[2009]Session18-Reading 66: Po...

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作者: saifudan    时间: 2009-5-23 13:19

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作者: lenny_chen    时间: 2009-5-25 14:37

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作者: frondzx    时间: 2009-5-29 08:34

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作者: jiachenhan    时间: 2009-5-31 09:04

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作者: blustxz    时间: 2009-6-2 18:53

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作者: yan_superman    时间: 2009-12-21 12:23

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作者: maxsimax    时间: 2010-2-27 15:45

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