政策扭曲是政策过程中经常会出现的一种情形,它也属于制度变迁的一个内容。对政策或制度扭曲的原因,可以有很多不同的解释,其中,政府偏好的因素在制度变迁和政策扭曲过程中扮演着很重要的角色。收容遣送制度的变迁为我们解释政策在执行过程中如何受到政府偏好的影响而被高度扭曲提供了一个恰当的案例。通过该案例的分析,本文提出了一个有关制度扭曲的一般性分析框架,即以国家为中心的秩序塑造、分权化下的地方冲动和路径依赖的制约。 Policy distortions are a common occurrence in the policy process and are also part of the institutional change. There are many different explanations why the policy or system is distorted. Among them, the factors preferred by the government play an important role in the process of institutional changes and policy distortions. The change in the system of detention and deportation provides an appropriate case for our interpretation of how policies are highly distorted by how government preferences affect implementation. Through the analysis of the case, this paper presents a general analysis framework about system distortions, that is, the restriction of local impulse and path dependence under the state-centered order shaping and decentralization.