中文摘要：

尽管互联网络是一种商家向消费者提供商品和服务的革命性的工具和途径，但市场研究表明，消费者对此的认可程度却是有限的，究其根源就是一个信任问题，信任问题也是电子商务发展的主要障碍。文章首先对电子商务中信任问题研究进行了简单回顾，然后建立了基于博弈论的团购信任分析模型，通过分析发现，团购模式可以抵制电子商务中失信行为的产生，促进电子商务诚信交易环境的建立。

英文摘要：

Although the internet is revolutionizing the way companies provide their products and services to their customers, marketing studies that investigate consumer acceptance of this technology are limited. The key is trust, which is significant barrier for realizing the potentials of e- commerce. This paper, firstly, reviews briefly research on trust in e- commerce. Then, A trust model of group-buying based on game theory is constructed, and some analyses are followed. By analyzing model, we know： group-buying can avoid breaking faith and promote trust trade environment in e -commerce.