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以外部性理论为基础的对担保制度效率的质疑是错误的,因为其忽略了造成外部性的约束条件即担保权的稀缺性,忽视了通过价格机制消除外部性的可能性,也忽视了法律干预所需要的高昂成本。这场效率之争反映出法律经济学研究传统模式的缺陷对经济效率和社会改造的过分迷恋,对经济学实证传统的偏离,以及对真实世界约束条件的忽略。法律经济学的重心应当从效率研究转向制度解释,关注法律制度所赖以形成和转变的约束条件。
The question of the efficiency of a guarantee system based on externality theory is erroneous because it ignores the constraints that create externality, namely, the scarcity of security rights, ignores the possibility of eliminating externalities through price mechanisms, and neglects the law The high cost of intervention. This dispute over efficiency reflects the excessive obsession with economic efficiency and social transformation on the defects of the traditional model of law and economics studies, the deviation from the empirical tradition of economics, and the neglect of the constraints of the real world. The focus of law and economics should shift from efficiency research to institutional explanation, paying attention to the constraints on the formation and transformation of the legal system.