On the number of critical equilibria separating two equilibria
证明在无禀赋符号限制的一般均衡模型中，任意两个均衡可由一条至多包含两个临界均衡的连续均衡路径连接，且指数为1的稳定正则均衡间存在无临界均衡的路径。
It is shown that two arbitrary equilibria in the general equilibrium model without sign restrictions on endowments can be joined by a continuous equilibrium path that contains at most two critical equilibria. This property is strengthened by showing that regular equilibria having an index equal to one, a necessary condition for stability, can be joined by a path containing no critical equilibrium. These properties follow from the real-algebraic nature of the set of critical equilibria in any fiber of the equilibrium manifold.