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Modelling zero-inflated count data when exposure varies: with an application to sick leave

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  • Gregori Baetschmann
  • Rainer Winkelmann

Abstract

This paper is concerned with the analysis of zero-inflated count data when time of exposure varies. It proposes a new zero-inflated count data model that is based on two homogeneous Poisson processes and accounts for exposure time in a theory consistent way. The new model is used in an application to the effect of insurance generosity on the number of absent days.

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File URL: http://www.econ.uzh.ch/static/wp/econwp061.pdf
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Bibliographic Info

Paper provided by Department of Economics - University of Zurich in its series ECON - Working Papers with number 061.

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Date of creation: Feb 2012
Date of revision:
Handle: RePEc:zur:econwp:061

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Related research

Keywords: Exposure; Poisson regression; complementary log-log link;

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References

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  1. Kevin E. Staub & Rainer Winkelmann, 2009. "Consistent estimation of zero-inflated count models," SOI - Working Papers 0908, Socioeconomic Institute - University of Zurich, revised Aug 2011.
  2. Vuong, Quang H, 1989. "Likelihood Ratio Tests for Model Selection and Non-nested Hypotheses," Econometrica, Econometric Society, vol. 57(2), pages 307-33, March.
  3. Street, Andrew & Jones, Andrew & Furuta, Aya, 1999. "Cost-sharing and pharmaceutical utilisation and expenditure in Russia," Journal of Health Economics, Elsevier, vol. 18(4), pages 459-472, August.
  4. Sisira Sarma & Wayne Simpson, 2006. "A microeconometric analysis of Canadian health care utilization," Health Economics, John Wiley & Sons, Ltd., vol. 15(3), pages 219-239.
  5. Steven T. Yen & Chao-Hsiun Tang & Shew-Jiuan B. Su, 2001. "Demand for traditional medicine in Taiwan: a mixed Gaussian-Poisson model approach," Health Economics, John Wiley & Sons, Ltd., vol. 10(3), pages 221-232.
  6. Treble,John & Barmby,Tim, 2011. "Worker Absenteeism and Sick Pay," Cambridge Books, Cambridge University Press, number 9780521806954, October.
  7. Pizer, Steven D. & Prentice, Julia C., 2011. "Time is money: Outpatient waiting times and health insurance choices of elderly veterans in the United States," Journal of Health Economics, Elsevier, vol. 30(4), pages 626-636, July.
  8. Nazmi Sari, 2009. "Physical inactivity and its impact on healthcare utilization," Health Economics, John Wiley & Sons, Ltd., vol. 18(8), pages 885-901.
  9. Barmby, Tim & Nolan, Michael & Winkelmann, Rainer, 2001. "Contracted Workdays and Absence," Manchester School, University of Manchester, vol. 69(3), pages 269-75, June.
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