Semiparametric Bayesian Modeling of Income Volatility Heterogeneity
收入波动异质性的半参数贝叶斯建模AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要直接研究个人收入的动态异质性,并明确为面板数据的序列依赖设计先验。
收入波动异质性的半参数贝叶斯建模AI 解读 ↓
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Research on income risk typically treats its proxy—income volatility, the expected magnitude of income changes—as if it were unchanged for an individual over time, the same for everyone at a point in time, or both. In reality, income risk evolves over time, and some people face more of it than others. To model heterogeneity and dynamics in (unobserved) income volatility, we develop a novel semiparametric Bayesian stochastic volatility model. Our Markovian hierarchical Dirichlet process (MHDP) prior augments the recently developed hierarchical Dirichlet process (HDP) prior to accommodate the serial dependence of panel data. We document dynamics and substantial heterogeneity in income volatility.