Multiple Temptations
用偏好-菜单框架建模受多重诱惑影响的决策者,通过两个公理识别其何时想限制或扩展选择集,并分离出规范偏好与诱惑,改进了现有模型。
We use a preference-over-menus framework to model a decision maker who is affected by multiple temptations. Our two main axioms on preference-exclusion and inclusion-identify when the agent would want to restrict his choice set and when he would want to expand his choice set. An agent who is tempted would want to restrict his choice set by excluding the normatively worst alternative of that choice set. Simultaneously, he would want to expand his choice set by including a normatively superior alternative. Our representation identifies the agent's normative preference and temptations, and suggests the agent is uncertain which of these temptations will affect him. We provide examples to illustrate how our model improves on those of Gul and Pesendorfer (2001) and Dekel, Lipman, and Rustichini (2009). Copyright 2010 The Econometric Society.