Volume 12 Number 3

May-June, 1997

	Special Issue on Econometric Models of Event Counts Guest Editor: P.K. Trivedi
	Introduction: Econometric Models of Event Counts P.K. Trivedi	199
	Count Data Regression using Series Expansions: With Applications A.C. Cameron and P. Johansson	203
	Semi-Parametric Estimation of Hurdle Regression Models with an Application to Medicaid Utilization S. Gurmu	225
	Estimating the Innovation Function from Patent Numbers: GMM on Count Panel Data B. Crepon and E. Duguet	243
	Patents, R&D, and Technological Spillovers at the Firm Level: Some Evidence from Econometric Count Models for Panel Data M. Cincera	265
	Endogeneity in Count Data Models: An Application to Demand for Health Care F.A.G. Windmeijer and J.M.C. Santos Silva	281
	Economic Incentives and Hospitalization in Germany P. Geil, A. Million, R. Rotte and K.F. Zimmermann	295
	Demand for Medical Care by the Elderly: A Finite Mixture Approach P. Deb and P.K. Trivedi	313
	Heterogeneity, Excess Zeros, and the Structure of Count Data Models J. Mullahy	337
	Conference Programme
	Announcement
	Forthcoming Papers
	Journal of Applied Econometrics Data Archive: Information for Users

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