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首页> 外文期刊>Computational economics >Computing Equilibrium Wealth Distributions in Models with Heterogeneous-Agents, Incomplete Markets and Idiosyncratic Risk
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Computing Equilibrium Wealth Distributions in Models with Heterogeneous-Agents, Incomplete Markets and Idiosyncratic Risk

机译:在具有异构Agent,不完全市场和异质风险的模型中计算均衡财富分布

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This paper describes an accurate, fast and robust fixed point method for computing the stationary wealth distributions in macroeconomic models with a continuum of infinitely-lived households who face idiosyncratic shocks with aggregate certainty. The household wealth evolution is modeled as a mixture Markov process and the stationary wealth distributions are obtained using eigen structures of transition matrices by enforcing the conditions for the Perron-Frobenius theorem by adding a perturbation constant to the Markov transition matrix. This step is utilized repeatedly within a binary search algorithm to find the equilibrium state of the system. The algorithm suggests an efficient and reliable framework for studying dynamic stochastic general equilibrium models with heterogeneous agents.
机译:本文介绍了一种精确,快速且鲁棒的不动点方法,用于计算宏观经济模型中的固定财富分配,该模型具有连续的无限生计的家庭,这些家庭面临着特定确定性的冲击。将家庭财富演变模型建模为混合马尔可夫过程,并通过向Perkov-Frobenius定理的条件加上马尔可夫过渡矩阵的扰动常数,使用过渡矩阵的本征结构来获得固定财富分布。在二进制搜索算法中重复使用此步骤以找到系统的平衡状态。该算法提出了一种有效且可靠的框架,用于研究具有异构主体的动态随机一般均衡模型。

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