Pareto Superiority of Unegalitarian Equilibria in Stiglitz' Model of Wealth Distribution with Convex Saving Function
证明在储蓄函数为凸的新古典增长模型中，局部稳定的两阶级不平等均衡不仅存在，而且必然帕累托优于平等均衡，并分析了帕累托最优的不平等均衡类别。
This paper extends the conclusions obtained by Stiglitz and others about the asymptotic wealth distribution in the neo-classical growth model when the saving function is convex.It is shown not only that locally stable two-class unegalitarian equilibria may exist along with the egalitarian equilibrium, but also that they necessarily are Pareto superior to it.More generally, the paper also analyzes the class of Pareto optimal unegalitarian equilibria.