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A Semiparametric Bayesian Approach to a New Dynamic Zero-Inflated Model

Author

Listed:
  • Kiranmoy Das

    () (Indian Statistical Institute)

  • Bhuvanesh Pareek

    () (Indian Institute of Management)

  • Sarah Brown

    () (Department of Economics, University of Sheffield)

  • Pulak Ghosh

    () (Department of Decision Sciences and Information Systems, Indian Institute of Management)

Abstract

We develop a dynamic zero-inflated model to analyse the number of hospital admissions within an aging population, which allows for the considerable number of zero hospital admissions at the individual level and occurrence dependence. In addition, certain health conditions may lead to groups of individuals having similar hospital admission rates. We analyse the US Health and Retirement Survey, which includes selfassessed health (SAH), which can be predictive of hospital admissions. Our modelling framework embeds a dynamic hierarchical matrix stick-breaking process to flexibly characterize this dynamic group structure allowing individuals to belong to different SAH groups at different points in time.

Suggested Citation

  • Kiranmoy Das & Bhuvanesh Pareek & Sarah Brown & Pulak Ghosh, 2017. "A Semiparametric Bayesian Approach to a New Dynamic Zero-Inflated Model," Working Papers 2017001, The University of Sheffield, Department of Economics.
  • Handle: RePEc:shf:wpaper:2017001
    as

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    File URL: http://www.sheffield.ac.uk/economics/research/serps/articles/2017_001
    File Function: First version, January 2017
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    References listed on IDEAS

    as
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    More about this item

    Keywords

    Bayesian models; Dirichlet process; Dynamic hurdle; Lasso; Matrix stickbreaking process; Zero-inflated data.;

    JEL classification:

    • C11 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Bayesian Analysis: General
    • C14 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Semiparametric and Nonparametric Methods: General
    • I12 - Health, Education, and Welfare - - Health - - - Health Behavior

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