Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
We study the circumstances under which public pressure affects judging. We show that crowd pressure biases decisions in favor of the crowd for “subjective decisions” with respect to which the judge has more discretion but not for “objective decisions.” The bias is strengthened after a judge's error against the crowd and when errors are costlier to the crowd. We use data about referees' decisions and errors from the Bundesliga. We exploit three regimes where, due to the introduction of Video Assistance Refereeing (VAR) and COVID-19, both crowd pressure and the likelihood of errors vary.