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本研究运用决策任务计算机模拟技术，探讨了投资决策者在不同决策任务特征下的风险行为模式。认为投资决策者的风险行为具有框架效应和沉入成本效应。在总期望效用不变的情况下，不同风险程度下决策者的风险回避行为可以用一条U形曲线表示：决策者的风险追寻行为可以用一条例U形曲线表示。进一步发展了现今有关决策者的风险行为理论，得出了新的结果，为今后的研究与应用提供了理论依据和实践指导。
This study uses decision-making computer simulation techniques to explore the risk behavior patterns of investment decision-makers under different decision-making tasks. It is considered that the risk behaviors of the investment decision-makers have the frame effect and the sunk cost effect. Under the condition that the total expected utility does not change, the risk avoidance behavior of decision-makers under different risk levels can be expressed by a U-shaped curve: The risk-seeking behavior of decision-makers can be expressed by a U-shaped curve. Further development of today’s risk-action theory of decision-makers, come to new results for the future research and application provides a theoretical basis and practical guidance.