一、相对集中投资 现代资产组合理论认为通过投资组合的分散化,可以降低投资组合的总体风险水平。对于股票投资而言,在任何情况下,资产组合投资都可以获得最大的期望收益。正由于此,分散投资风险的资产组合理论成为投资者的普遍奉行的法则。 但是,投资总是在风险与收益之间寻找最佳权衡。如果仅为了分散风险而投资,势必不能获得最大收益。美国投资理论家杰拉尔德·罗伯说:“绝大多数具正巨大的财富都是通过集中化取得的”。 First, the relative concentration of investment Modern portfolio theory that the diversification of the portfolio can reduce the overall level of risk of the portfolio. For equity investments, in any case, portfolio investment can get the maximum expected return. Because of this, the diversification of investment risk portfolio theory has become a common practice of investors. However, investment always looks for the best trade-off between risk and return. If only to diversify the risk of investment, will not be able to get the maximum benefit. American investment theorist Gerald Robb said: “Most of the great wealth we have obtained through centralization.”