In this paper, we address the problem of sabotage in tournaments with heterogeneous contestants. In a first step, we develop a formal model, which yields the prediction that favorites exert higher productive effort, while underdogs are more tempted to engage in destructive actions (sabotage). This is because favorites have a higher return on productive effort and both types of effort are substitutes. In a second step, we use data from German professional soccer to test this prediction. In line with the model, we find that favorite teams win more tackles in a fair way, while underdog teams commit more fouls.
Applying detailed within-tournament information about intermediate scores and contestants' ability in rank-order professional soccer tournaments, this study empirically analyzes the impact of interim results on the sabotage activities of heterogeneous contestants. Intermediate information that suggests that a contest is decided early decreases total sabotage. Splitting contestants into favorites and underdogs reveals that both contestants sabotage the most if intermediate information about the score compensates for or decreases ex ante heterogeneity between the teams. However, engaging in sabotage does not pay off for the contestants.
The purpose of the current study is to investigate how consistency of professional soccer players’ performance affects salaries in the German Bundesliga. Using game-level data for five consecutive seasons ( n = 34,413 player–match day observations), we find empirical evidence for a salary premium to players showing volatility in performance. Applying ordinary least squares, fixed-effects as well as quantile regression analyses, this effect remains robust.
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Ihs H m m d Academic Publishen imprint. panof %Cordon and B-h Publishing Omup.Validation of new crash test dummies for rear-end collision testing requires human response data from pertinent test situations. Eleven human volunteers were exposed to 23 low-speed rear impacts to determine human response in well-defined test seats, and to quantify repeatability, variability and the effect of seat design on human response.The results showed vertical motion of the volunteers' H-point caused by ramping up along the seat, and an upward motion of the volunteers'torso and head. The latter was caused by a combination of ramping up along the seatback and straightening of the thoracic kyphosis. During the first 100 ms, the volunteers flexed their necks. Thereafter, the volunteers extended their necks. These new data have proven to be useful in validation of rear-impact dummies.
Understanding and predicting how individuals perform in high-pressure situations is of importance in designing and managing workplaces. We investigate performance under pressure in professional darts as a near-ideal setting with no direct interaction between players and a high number of observations per subject. Analyzing almost one year of tournament data covering 32,274 dart throws, we find no evidence in favor of either choking or excelling under pressure.
The present article empirically explores the impact of intermediate information on contestants' effort. Data involving substituted soccer players of the German Bundesliga indicate only weak evidence of a negative effect of ex ante heterogeneity on effort; in contrast, intermediate information, measured by goal difference at the time of substitution, significantly affects effort. Players exert the greatest effort when their team is leading by one goal and reduce their effort when it is trailing. When intermediate information suggests the contest is already decided, players from both teams reduce effort. This behavior is in line with loss aversion, such that players weight potential losses more than potential gains and adjust their effort accordingly. (JEL Z22, J41, M54)
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