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“柠檬市场”模型最早出现于Akerlof的那篇经典论文《“柠檬”市场:质量的不确定性和市场机制》(1970)之中。Akerlof以该模型所具有的广泛而深远的影响奠定了他在信息经济学中的地位,并摘取了2001年的诺贝尔经济学奖。但目前国内对此问题的研究更多的只是对原始模型的概括性描述,缺乏对柠檬市场模型的演进轨迹与最新进展的介绍。实际上,从Akerlof提出该模型到现在的30年来,有很多经济学家沿着Akerlof开创的工作对该模型进行了扩展和延伸,并获得了丰富的研究成果。本文力图对30年来柠檬市场模型的演化轨迹进行分析和归纳。
The Lemon Market model first appeared in Akerlof’s classic The Lemons Market: Quality Uncertainty and Market Mechanism (1970). Akerlof laid the foundation for his extensive and far-reaching impact on the economics of information and won the 2001 Nobel Prize for Economics. However, the domestic research on this issue is only more general description of the original model, the lack of an introduction to the evolution trajectory and the latest progress of the lemon market model. In fact, from the time Akerlof proposed the model to the present 30 years, many economists have expanded and extended this model along with the work pioneered by Akerlof and obtained rich research results. This article seeks to analyze and summarize the evolution of the lemon market model over the past 30 years.