The role of referees has become a central issue in the investigation of home advantage. The main aim of this study was a thorough examination of the referee bias concerning injury time in football, which is currently seen as an important example for the assertion that referees contribute to home advantage. First, we use archival data from the German Bundesliga (seasons 2000/2001-2010/2011) to confirm the existence of an asymmetry in the allocation of injury time. We show this asymmetry to be a bias by ruling out hitherto remaining alternative explanations (effect = 18 s, P < 0.001, R2(adj) = 0.05). Second, we identify a further referee bias, stating that referees systematically accord more injury time when one team leads in the game compared to a draw (effect = 21 s, P = 0.004, R2(adj) = 0.06). Third, the quantitative benefit of home or away teams in goals and points due to these biases is assessed. Overall, referee decisions on injury time indeed reveal biases, but they do not contribute to the home advantage, that is, there is no significant effect on goals scored by the teams. The qualitative findings (a new bias on injury time) as well as the quantitative findings (no overall effect) shed new light on the role of referees for home advantage.

No abstract

Incentives guide human behavior by altering the level of external motivation. We apply the idea of loss aversion from prospect theory (Kahneman & Tversky, 1979) to the point reward systems in soccer and investigate the controversial impact of the three-point rule on reducing the fraction of draws in this sport. Making use of the Poisson nature of goal scoring, we compared empirical results with theoretically deduced draw ratios from 24 countries encompassing 20 seasons each (N = 118.148 matches). The rule change yielded a slight reduction in the ratio of draws, but despite adverse incentives, still 18% more matches ended drawn than expected, t(23) = 11.04, p < .001, d = 2.25, consistent with prospect theory assertions. Alternative point systems that manipulated incentives for losses yielded reductions at or below statistical expectation. This provides support for the deduced concept of how arbitrary aims, such as the reduction of draws in the world's soccer leagues, could be more effectively accomplished than currently attempted.

Sport and sport consumption represent highly gendered spheres. Accordingly, sport spectatorship and fandom have been predominantly male. Recently, however, a trend towards a 'feminization of sport crowds' within European soccer has been detected. The piece of research presented here focuses on the concept's quantitative dimension and aims to provide empirical evidence on long-term trends in female sport consumption and team identification studying trends for the German national soccer team over a 12-year period. The results suggest that the feminization of soccer reflects not only inauthentic consumerism but also increased team identification. Moreover, consistent age effects might be interpreted as indicating that the detected trends relate to changes in gender roles attitudes.

This study investigates the global home advantage in soccer, the sport where it is most striking. We analysed data from the highest (premier) league in 194 of 208 FIFA countries. Available data ranged from 1888 up to the season 2011/2012, resulting in a total of N = 684,162 games. The study includes several variables from previous literature that have been discussed as potential moderators for home advantage in soccer.