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A strong correspondence principle for smooth, monotone environments

机译:强大的通信原理,用于光滑,单调的环境

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In discrete time dynamic systems that are locally monotone, we show that comparative statics are well-behaved at a regular equilibrium if and only if equilibrium is exponentially stable. We apply the result to show: (i) if excess demand satisfies the gross substitutes property then the competitive exchange equilibrium is stable iff intuitive comparative statics hold, (ii) the market demand curve for bandwagon (or network) goods slopes upwards only if equilibrium is unstable, and (iii) equilibria of supermodular games are stable iff they exhibit monotone comparative statics. We also provide a non-local version of the result for linear models, and apply the insights to the input-output model and network games with linear best replies and strategic complementarities. (C) 2018 Elsevier B.V. All rights reserved.
机译:在局部单调的离散时间动态系统中,我们表明,如果均衡是指数稳定的,则只有常规平衡,比较静态表现得很好。 我们应用结果表明:(i)如果需求过多满足替代品,则竞争交换均衡是稳定的IFF直观的比较估计,(ii)仅当均衡时距离的市场需求曲线(或网络)货物斜坡上向上倾斜 不稳定,(iii)超透镜游戏的均衡是稳定的IFF,它们表现出单调比较估计。 我们还提供了线性模型的结果的非本地版本,并将输入输出模型和网络游戏应用于线性最佳回复和战略互补性。 (c)2018 Elsevier B.v.保留所有权利。

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