Arbeitspapier
A dynamic hurdle model for zero-inflated count data: With an application to health care utilization
A Dynamic Hurdle Model for Zero-Inflated Count Data: With an Application to Health Care UtilizationExcess zeros are encountered in many empirical count data applications. We provide a new explanation of extra zeros, related to the underlying stochastic process that generates events. The process has two rates, a lower rate until the first event, and a higher one thereafter. We derive the corresponding distribution of the number of events during a fixed period and extend it to account for observed and unobserved heterogeneity. An application to the socio-economic determinants of the individual number of doctor visits in Germany illustrates the usefulness of the new approach.
- Sprache
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Englisch
- Erschienen in
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Series: SOEPpapers on Multidisciplinary Panel Data Research ; No. 648
- Klassifikation
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Wirtschaft
Single Equation Models; Single Variables: Discrete Regression and Qualitative Choice Models; Discrete Regressors; Proportions; Probabilities
Health: General
- Thema
-
excess zeros
Poisson process
exposure
hurdle model
- Ereignis
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Geistige Schöpfung
- (wer)
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Baetschmann, Gregori
Winkelmann, Rainer
- Ereignis
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Veröffentlichung
- (wer)
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Deutsches Institut für Wirtschaftsforschung (DIW)
- (wo)
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Berlin
- (wann)
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2014
- Handle
- Letzte Aktualisierung
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10.03.2025, 11:44 MEZ
Datenpartner
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Objekttyp
- Arbeitspapier
Beteiligte
- Baetschmann, Gregori
- Winkelmann, Rainer
- Deutsches Institut für Wirtschaftsforschung (DIW)
Entstanden
- 2014