Recently, Phil Taylor failed to reach the Premier League Darts play-offs for the first time in his career following a 7-5 defeat to Gary Anderson. Since its inception in 2005, Taylor has won the League a record 6 times, including a 44 game unbeaten run between 2005 and 2008. So what has caused Taylor’s failure in the 2015 league? One logical view is that darts has become more competitive over time. There are a number of ways in which the degree of competition between players can be measured. One common measurement is the Herfindahl Index of Competitive Balance (HICB). Figure 1 shows the HICB for the PDC Premier League between 2007 and 2015.
Stephen Brosnan is a research assistant in the Department of Economics, University College Cork.