并排一起
发表于 2025-3-21 18:58:05
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sigmoid-colon
发表于 2025-3-21 22:57:05
Interval Mean-Semiabsolute Deviation Model,ance model, Li and Xu (2009) proposed an interval goal programming model on the assumption that security returns are fuzzy variables, and Wu et al. (2013) revisited interval mean-variance analysis by assuming that the expected returns and covariances of assets are both intervals.
哄骗
发表于 2025-3-22 02:44:38
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meritorious
发表于 2025-3-22 06:01:56
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温室
发表于 2025-3-22 11:52:35
Uncertain Mean-Semiabsolute Deviation Model,k of uncertainty theory (Liu 2007). In particular, several researchers have studied portfolio optimization in which security returns are assumed to be uncertain variables. The first attempt is Qin et al. (2009) who formulated the uncertain counterpart of mean-variance model. As extensions, Liu and Q
cardiopulmonary
发表于 2025-3-22 16:57:32
Uncertain Mean-LPMs Model,attracted more and more attentions since investors are often sensitive to downside losses, relative to upside gains. Moreover, it requires simpler theoretical assumptions to justify its application. In portfolio management, investors always prefer securities with smaller downside risk. In the situat
Substance
发表于 2025-3-22 19:58:54
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Seminar
发表于 2025-3-22 23:34:43
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泛滥
发表于 2025-3-23 03:42:28
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南极
发表于 2025-3-23 08:30:08
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