
- UID
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- 285
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- 15
- 注册时间
- 2011-7-2
- 最后登录
- 2015-1-30
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all boils down to probability and cost of rebalancing to maintain the asset target.
if the volatility is high then you need a tighter leash on the asset weight to prevent drift........ if the correlation with other assets is high then when it moves up so does the rest of the portfolio and hence more or less preserving the weights so you can afford to have a looser leash ( wider corridor) |
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