中文摘要：

Everbright 证券有限公司错误地提交了巨大的数量在 2013 年 8 月 16 日通过 11:07 从 11:05 在 SSE180 成分股票上买订单。这个胖手指事故在中国证券市场上有显著影响。这份报纸使用事故学习市场质量和投资者回答。我们证明中国证券市场是足够柔韧的承受审判，展出深深度和强壮的跳回。然而，因为有大价格秋千，在错误的订单被执行以后，市场以聚集信息糟糕表现了。而且，投资者快速至于原因把他们的信仰换戏剧的价格跳，与信息一致串联理论。

英文摘要：

Everbright Securities Ltd. erroneously submitted huge quantities of buy orders on SSE180 constituent stocks from 11：05 through 11：07 on 16 August 2013. This fat finger accident had a pronounced impact on the Chinese stock markets. This paper uses the accident to study market quality and investors＇ responses. We show that the Chinese stock markets were robust enough to stand the trial, exhibiting deep depths and strong resiliency. However, the markets performed poorly in terms of aggregating information because there were large price swings after the erroneous orders were executed. Moreover, investors quickly change their beliefs as to the reasons to the dramatic price jumps, consistent with information cascade theory.