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- 2016-12-5
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i think you are right…
external : composite dispersion around average composite return for the annual period over all years. ( a bit like timeseries coz we are looking across time)
internal : portfolio dispersion around average composite return for the annual period (a bit like cross section…coz we are looking across portfolios over a particular year) |
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发表于 2013-4-22 13:09
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