个人理性与沉没成本悖论

文章放松了新古典经济学条件下沉没成本决策无关性假设前提,进而从真实世界角度阐述沉没成本悖论存在的理性逻辑,从而表明人们很难忽略过去发生的沉没成本,它本身并不能被视为一种悖论或错误行为,甚至是非理性行为,同样也是在约束条件下一种广义理性行为。因此,需要承认沉没成本悖论存在的普遍性,而且还需要采取恰当的非正式和正式制度设计克服沉没成本悖论所带来的负面影响,并不是简单地警告我们不要考虑过去发生的沉没成本,＂让过去的事情过去吧＂的规范结论。因此,不仅需要提高决策者的认识能力,更多需要采取加强沉没成本与风险管理,创造一个良好的市场环境是最为根本的。

Individual Rationality and Sunk Cost Paradox

In order to focus on the paradox of sunk costs,we introduced the sunk costs concepts.Under nonneoclassic environment,we relax fric-tionless,static and perfect competition.Hence we have found that paradox of sunk costs is rational choice in nonneoclassic environment,including imperfect information,principal-agent and resource scarcity and so on.Hence we provide the policy and institutional design implications for sunk cost and risk management,creating a sustainable market economic system.