2) portfolio frontier belt
投资组合前沿带
1.
The portfolio frontier was creatively expanded to a frontier belt called "portfolio frontier belt".
建设性地将投资组合前沿扩展到一个误差带上,称为"投资组合前沿带"。
3) q zero-covariance portfolio fronti er
q-零协方差资产组合前沿
4) portfolio frontier
组合前沿
1.
Not only the necessary and sufficient conditions for existing frontier portfolio in the capital market are obtained, but also the implicit general solutions of frontier portfolio and some properties of portfolio frontier are derived through the generalized inverse of bordered matrix.
研究了奇异协方差阵的投资组合选择模型,运用镶边矩阵广义逆方法得到了存在前沿组合的充要条件,并给出了前沿组合的显式解和组合前沿的性质。
2.
Introducing prices of securities,this paper classifies general securities sets by portfolio frontier and then a direct proof for a determinant theorem about Efficient Subset is obained.
本文通过引入证券价格 ,讨论一般证券集组合前沿的分类 ,并据此直接证明判定某个证券子集是全集的有效子集的一个充要条
6) frontier of industrial organization
产业组织前沿
补充资料：前沿
①防御阵地最前面的靠边沿的部分：前沿阵地。②泛指斗争的第一线：他始终站在意识形态斗争的最前沿。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条