@techreport{NBERw17023,
 title = "The Role of Skill Versus Luck in Poker: Evidence from the World Series of Poker",
 author = "Steven D. Levitt and Thomas J. Miles",
 institution = "National Bureau of Economic Research",
 type = "Working Paper",
 series = "Working Paper Series",
 number = "17023",
 year = "2011",
 month = "May",
 URL = "http://www.nber.org/papers/w17023",
 abstract = {In determining the legality of online poker – a multibillion dollar industry – courts have relied heavily on the issue of whether or not poker is a game of skill.  Using newly available data, we analyze that question by examining the performance in the 2010 World Series of Poker of a group of poker players identified as being highly skilled prior to the start of the events.   Those players identified a priori as being highly skilled achieved an average return on investment of over 30 percent, compared to a -15 percent for all other players.  This large gap in returns is strong evidence in support of the idea that poker is a game of skill.},
}