What Belongs Where? Variable Selection for Zero-Inflated Count Models with an Application to the Demand for Health Care

Jochmann, Markus (2009) What Belongs Where? Variable Selection for Zero-Inflated Count Models with an Application to the Demand for Health Care. Discussion paper. University of Strathclyde, Glasgow.

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Abstract

This paper develops stochastic search variable selection (SSVS) for zero-inflated count models which are commonly used in health economics. This allows for either model averaging or model selection in situations with many potential regressors. The proposed techniques are applied to a data set from Germany considering the demand for health care. A package for the free statistical software environment R is provided.

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