%0 Report
%9 Working Paper
%A Panova, Elena
%B TSE Working Paper
%C Toulouse
%D 2022
%F publications:46265
%I Université Toulouse 1 Capitole
%K sharing network cost
%K core
%K proportional allocation
%T Sharing cost of network among users with differentiated willingness to pay
%U https://publications.ut-capitole.fr/id/eprint/46265/
%V 22-1356
%X We consider the problem of sharing the cost of a fixed tree-network among users with differentiated willingness to pay for the good supplied through the network. We find that the associated value-sharing problem is convex, hence, the core is large and we axiomatize a new, computationally simple core selection based on the idea of proportionality.