产品质量规制与电影在线评分——基于经典估计贝叶斯平均法和倾向得分匹配法  

Product Quality Regulation and Online Movie Ratings——Based on Bayesian Propensity Score Estimators

作　　者：陈林 万攀兵 CHEN Lin;WAN Panbing(Jinan University,Guangzhou,China)

机构地区：[1]暨南大学产业经济研究院 [2]广州区域低碳经济研究基地,510632

出　　处：《经济学动态》2020年第3期69-85,共17页Economic Perspectives

基　　金：国家自然科学基金面上项目“竞争政策与准入规制的协调机制研究”(71773039);教育部哲学社会科学研究重大课题攻关项目“我国全要素生产率提升与测算研究”(17JZD013)资助。

摘　　要：作为传统的产业规制手段,产品质量规制对消费者福利影响重大,但鲜有研究从消费者角度评价产品质量规制的制度绩效。为此,本文基于产业组织理论的ISCP分析框架,手工整理出2002—2019年834部国产电影的产品级微观数据,采用经典估计贝叶斯平均法改良传统的倾向得分匹配法,检验了产品质量规制与电影在线评分之间统计意义上的“因果关系”。实证结果表明,产品质量规制仅有助于提升知名导演主导影片的在线评分,而未能提升整体影片的在线评分。因此,当前我国电影产业内的产品质量规制体系只有进一步优化和调整,才能完成党的十九大提出的“深化简政放权”与“完善市场监管体制”等经济体制改革目标。As one of the traditional industrial regulation measures,product quality regulation has a significant impact on consumer welfare,but few studies evaluated its performance from the perspective of consumers.To this end,under the ISCP framework of the theory of industrial organization,this paper tests the causal relationship in statistical significance between product quality regulation and online movie ratings by manually collecting the product-level microdata of 834 domestic movies from 2002 to 2019 and using Bayesian averaging of classical estimates in an effort to improve the traditional propensity score matching method.Research results show that product quality regulation only contributes to online movie ratings led by well-known directors,but not those of the overall movies.Therefore,the current product quality regulatory system in the Chinese movie industry needs to be improved and adjusted in order to complete the economic reform strategies such as“deepening administration and decentralization”and“improving the market regulatory system”proposed by the Party's 19th National Congress.

关 键 词：产业规制 产品质量规制 新产业组织实证 电影产业 后验PSM 

分 类 号：D92[政治法律—法学]