Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
We use high-volume data from professional tennis to estimate the causal effect of past on current performance for women and men. To identify this effect, we exploit double faults as exogenous shocks to past performance. We estimate that men do not react to near setbacks in the past. In contrast, women perform considerably worse after near setbacks. Heterogeneity analysis reveals different effects depending on experience, ability, and the intermediate score. Our results are robust to a number of sensitivity checks. A potential explanation for our findings are gender differences in negative psychological momentum.