题目：What Numbers to Choose for My Lottery Ticket? Behavior Anomalies in the Chinese Online Lottery Market

演讲人：丁洁瑶 Max Planck Institute for Research on Collective Goods

时间：2013年3月26日（周二）16:00—17:30

地点：邵逸夫科学馆513

摘要：

The Chinese Online Lottery provides field evidence of three anomalies. The first anomaly, which

has previously not been documented when there is a financial incentive to overcome, is the

guidance effect. Since the target game in this project is a pari-mutuel game, which means people

will share the jackpot with other winners, the best strategy should be to choose the least popular

numbers among others – information that people could obtain on the webpage. However, to my

surprise, instead of doing so, people would choose the most popular numbers among others. The

second anomaly tested is the gambler’s fallacy. Although it is proved that the gambler’s fallacy

does exist, the influence lasts only three days, which is much shorter than prior research.

Furthermore, the dataset’s availability makes it possible to show how the two fallacies unfold over

time within a round. This was unlikely before the phenomenon of online betting. The result

demonstrates that later entrants are subject to more fallacies than earlier ones. Finally, the paper

adds to the evidence showing the additional, culturally contingent pull of special numbers. In

China, bettors prefer to choose the lucky number 8, even it won the game in prior rounds, but they

are reluctant to choose the unlucky number 14 even it has not been picked for a long while.