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Solving the incomplete market model with aggregate uncertainty using a perturbation method

机译:用摄动法求解总不确定性的不完全市场模型

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We use a perturbation method to solve the incomplete markets model with aggregate uncertainty described in den Haan et al. [Computational suite of models with heterogeneous agents: incomplete markets and model uncertainty. Journal of Economic Dynamics & Control, this issue). To apply that method, we use a "barrier method" to replace the original problem with occasionally binding inequality constraints by one with only equality constraints. We replace the structure with a continuum of agents by a setting in which a single infinitesimal agent faces prices generated by a representative-agent economy. We also solve a model variant with a large (but finite) number of agents. Our perturbation-based method is much simpler and faster than other methods.
机译:我们用摄动法来解决不完整的市场模型,该模型具有den Haan等人所述的总体不确定性。 [具有异构主体的计算模型套件:不完整的市场和模型不确定性。经济动力学与控制杂志,本期)。为了应用该方法,我们使用“屏障方法”来将原始问题替换为有时只用相等约束约束不平等约束。我们通过一个连续的代理人替换结构,在这种设置中,单个无穷小代理人面对代议代理经济产生的价格。我们还解决了具有大量(但有限)主体的模型变体。我们基于扰动的方法比其他方法更简单,更快捷。

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