Although online poker is a gold mine of data, until now nobody knows where the players and their money come from. It seems that the knowledge about the online poker market has not been able to keep up with the speed of its evolution in the past years. This paper is the first to shed light on...

In a door-to-door fundraising field experiment, we study the impact of fundraising mechanisms on charitable giving. We approached about 4500 households, each participating in either an all-pay auction, a lottery, a non-anonymous voluntary contribution mechanism (VCM), or an anonymous VCM. In...

We conducted two fundraising experiments to study the effects (1) of compassion towards the beneficiary, and (2) of giving participants an opportunity to attribute small donations to luck. We find that exposing the participants to a plea to help the beneficiary increases the average donation....