Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
Consider a contest for a prize in which each player knows his/her own ability, but may or may not know those of his/her rivals (the complete or incomplete information regimes). Our main result is that, if the value of the prize is high, more effort and output are engendered under incomplete information, whereas, if the value is low, that distinction goes to complete information.