Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
This note provides a new proof of the non-emptiness of the fuzzy core in a pure exchange economy with finitely many agents. The proof is based on the concept of $(\Pi, \beta)$ -balanced core for games without side payments due to Bonnisseau and Iehlé (2003). Copyright Springer-Verlag Berlin/Heidelberg 2005