Measuring the Efficiency of Spanish First-Division Soccer Teams

The aim of this article is to measure the efficiency of the professional soccer teams that play in the Spanish First Division in their activity of converting attacking moves during the match into sporting success. The timeline of the study is the three seasons from 1998 to 2001. To that end, we apply the data envelopment analysis (DEA) methodology, taking as input variables the players used, attacking moves, the minutes of possession of the ball, and the shots and headers; as output, we considered the number of points achieved. Our main conclusion is that the efficient teams in the activity analyzed do not always correspond with those that finished highest in the league at the end of the season.