Existence, Uniqueness and Some Comparative Statics for Ratio and Lindahl Equilibria: New Wine in Old Bottles

摘要: We present a rigorous, yet elementary, demonstration of the existence unique Lindahl equilibrium under assumptions that characterize standard n-player public good model. Indeed, our approach, which exploits aggregative structure model, lends itself to transparent geometric representation. Moreover, it can handle more general concept cost-share or ratio equilibrium. Finally, we indicate how may be exploited facilitate comparative static analysis and cost share equilibria.