分散风险理论

总之，研究结果支持了基于分散风险理论和交易成本理论的假设，拒绝了基于代理成本理论的假设。

In conclusion , the results accept the hypothesis based on the theories of coinsurance effect and transaction costs , rejecting the hypothesis of agency costs .

本文在分散风险理论、交易成本理论和代理成本理论的基础上，深入探讨了公司多样化战略与资本结构之间的内在关系，并形成研究假设。

On the theories of coinsurance effect , transaction costs and agency costs , this study analyzes the potential relationship between capital structure and the diversification strategy by making hypothesis .

投资组合分散风险的理论及实证分析

The Dispersion Risk Theory and Positive Analysis of Combination Investment

为了获得稳定收益，投资者利用投资组合来分散投资的风险，分散风险的投资理论最初由HarryM.Markowitz提出。

In order to obtain stable income , investors use the investment portfolio to diversify risk , the theory of risk diversification was originally put forward by Harry M. Markowitz .