Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
We provide an elementary proof of the existence of equilibrium in a general equilibrium model allowing for non-convex production sets. It is shown that when firms follow upper hemicontinuous and convex-valued pricing rules with bounded losses, a price vector and an allocation exist, such that all agents are in equilibrium and all markets clear. The existence result presented in this paper is a particular case of that one in Bonnisseau and Cornet (1988, Th. 2.1'). In this respect, our contribution consists of presenting an alternative proof which turns out to be simpler and more intuitive.