摘要：In this paper, the traditional model of herd behavior was improved and extended. The herd behavior of risk-averse investor based on information cost was studied in the financial market. By refining the concept of Bayes equilibrium and the analysis of the behavior of investors, it was discovered that the herd behavior of the second risk-averse investor did not produce until the first risk-averse investors chose to buy information.
关键词：Risk Avoidance; Information Cost; Herd Behavior
