摘要：The paper presents the authors' views on the possible underlying and interconnected causes of the current financial crisis: the underassessment of risk by market participants and the inherent complexity of financial systems. Besides other explanations of the causes behind the recent financial turmoil such as government and central bank policies, financial markets liberalization, investors’ excessive appetite for risk and the use of financial models, one need to recognize the fact that underassessment of risk by market participants and policy makers is a major cause for the current crises, as for previous ones. The underestimation of risk is tightly coupled to the complexity of nowadays financial markets, as a result of an interlinking of securities, structures, and derivatives build around the subprime mortgages.
