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INSTANTANEOUS INFORMATION ALWAYS STABILIZES?

机译:即时信息始终稳定吗?

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摘要

The impact of information improvement on local stability is examined for continuous dynamics. It is conventionally believed that removal of uncertainty always brings additional stability to an existing equilibrium. This paper shows that the relation between information and equilibrium stability may not be monotonic. Removal of information lag may sometimes destabilize the otherwise stable continuous model. Economic applications to Cournot and Bertrand competition are examined where the role of improved information on stability is shown to be cost-structure specific. Elimination of lags may cause stability loss. The conclusion drawn on two-dimensional continuous dynamics is briefly generalized to multidimensional system.
机译:对于连续动态,研究了信息改进对局部稳定性的影响。通常认为,不确定性的消除总是给现有的平衡带来额外的稳定性。本文表明,信息与平衡稳定性之间的关系可能不是单调的。消除信息滞后有时可能会使原本稳定的连续模型不稳定。研究了古诺和贝特朗竞争的经济应用,其中关于稳定性的改进信息的作用被证明是特定于成本结构的。消除滞后可能会导致稳定性损失。关于二维连续动力学的结论简要地推广到多维系统。

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