中文摘要：

随着电子商务的飞速发展,在线影评已经成为消费者在选择观看电影过程中的重要信息源,也使得利用在线影评来预测电影票房收入成为了可能。为此,将在线影评数量、电影票房收入、电影上映场次作为内生变量,并借助联立方程模型分析它们的相互关系,结果表明：在线影评数量和电影上映场次显著正向影响电影票房收入;而电影票房收入和在线影评分值又对在线影评数量有显著影响;在用户影评和专家影评中,只有用户影评分值显著正向影响电影上映场次。

英文摘要：

This research studies the impact that online reviews has on seller＇s behavior in the context of movie industry by taking advantage of its publicly available data.To this end,this paper develops a simultaneous equation system by regarding online reviews,box office revenue（product sales）and the number of screens（seller behavior）as endogenous variables.Compared with the prior studies,the result shows that number of screens and number of online reviews are positively correlated to box office revenue,box office revenue and online users＇ rating have positive effect on number of online reviews.Besides,online users＇ rating is positively associated with the number of screens,confirming that the online reviews have influence on seller＇s behavior.