Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
Competition between heterogeneous participants leads to low‐effort provision in contests. A principal can divide her fixed budget between skill‐enhancing training and the contest prize. Training can reduce heterogeneity, increasing effort. It also reduces the contest prize, making effort fall. We set up an incomplete‐information contest with heterogeneous players and show how this trade‐off is related to the size of the budget of an effort‐maximizing principal. A selection problem arises implying a cost associated with a win by the inferior player. The principal has a larger incentive to train the laggard, reducing the prize on offer.