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首页> 外文期刊>Journal of Economic Dynamics and Control >Computing equilibria in dynamic models with occasionally binding constraints
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Computing equilibria in dynamic models with occasionally binding constraints

机译:在偶有约束约束的动态模型中计算平衡

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We propose a method to compute equilibria in dynamic models with several continuous state variables and occasionally binding constraints. These constraints induce non-differentiabilities in policy functions. We develop an interpolation technique that addresses this problem directly: It locates the non-differentiabilities and adds interpolation nodes there. To handle this flexible grid, it uses Delaunay interpolation, a simplicial interpolation technique. Hence, we call this method Adaptive Simplicial Interpolation (ASI). We embed ASI into a time iteration algorithm to compute recursive equilibria in an infinite horizon endowment economy where heterogeneous agents trade in a bond and a stock subject to various trading constraints. We show that this method computes equilibria accurately and outperforms other grid schemes by far.
机译:我们提出了一种在动态模型中计算平衡的方法,该模型具有多个连续状态变量并偶尔具有约束力。这些限制导致了政策功能的不可区分性。我们开发了一种直接解决此问题的插值技术:它定位非微分并在其中添加插值节点。为了处理这种灵活的网格,它使用了Delaunay插值(一种简单的插值技术)。因此,我们将此方法称为自适应简单插值(ASI)。我们将ASI嵌入到时间迭代算法中,以计算无限天赋end赋经济中的递归均衡,在这种情况下,异构主体以债券形式交易股票,而股票则受到各种交易约束。我们证明了该方法可以精确地计算平衡,并且远远优于其他网格方案。

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