RT Journal Article T1 Decreasing Serial Cost Sharing under Economies to Scale A1 Frutos, María Ángeles de AB We consider the problem of cost sharing in the presence of increasing returns to scale and potential strategic behavior on the part of consumers. We show that any smooth and strictly monotonic mechanism for which a Nash equilibrium exists for all profiles of convex and monotonic preferences must be dictatorial. However, we propose a cost sharing mechanism, the decreasing serial mechanism, for which an interesting domain restriction ensures existence of a noncooperative equilibrium for its cost sharing game. A characterization theorem of the mechanism based on the strategic properties of existence, uniqueness, and efficiency of its noncooperative equilibrium is provided. PB Elsevier SN 0022-0531 YR 1998 FD 1998 LK https://hdl.handle.net/10016/4414 UL https://hdl.handle.net/10016/4414 LA eng DS e-Archivo RD 19 may. 2024