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A bivariate zero-inflated count data regression model with unrestricted correlation

Gurmu, Shiferaw; Elder, John - In: Economics letters 100 (2008) 2, pp. 245-248

Persistent link: https://www.econbiz.de/10003768241

Estimation and specification testing in some econometric models of counts

Gurmu, Shiferaw - 1992

Persistent link: https://www.econbiz.de/10000865596

Semi-parametric estimation of hurdle regression models with an application to medicaid utilization

Gurmu, Shiferaw - In: Journal of applied econometrics 12 (1997) 3, pp. 225-242

Persistent link: https://www.econbiz.de/10001336082

Tests for detecting overdispersion in the positive Poisson regression model

Gurmu, Shiferaw - In: Journal of business & economic statistics : JBES ; a … 9 (1991) 2, pp. 215-222

Persistent link: https://www.econbiz.de/10001104134

Generalized hurdle count data regression models

Gurmu, Shiferaw - In: Economics letters 58 (1998) 3, pp. 263-268

Persistent link: https://www.econbiz.de/10001234703

Semiparametric estimation of count regression models

Gurmu, Shiferaw - In: Journal of econometrics 88 (1999) 1, pp. 123-150

Persistent link: https://www.econbiz.de/10001250277

The Knowledge Production Function for University Patenting

Stephan, Paula E.; Black, Grant; Gurmu, Shiferaw - 2015

We estimate a knowledge production function for university patenting using an individual effects negative binomial model. We control for R&D expenditures, research field and the presence of a TTO office. We distinguish between three kinds of researchers who staff labs: faculty, postdoctoral...

Persistent link: https://www.econbiz.de/10014051996

Estimating the arbitrage pricing theory with observed macro factors

Elder, John - In: Economics letters 55 (1997) 2, pp. 241-246

Persistent link: https://www.econbiz.de/10001227342

An impulse-response function for a vector autoregression with multivariate GARCH-in-mean

Elder, John - In: Economics letters 79 (2003) 1, pp. 21-26

Persistent link: https://www.econbiz.de/10001741256

Testing for unit roots : what should students be taught?

Elder, John; Kennedy, Peter - In: The journal of economic education 32 (2001) 2, pp. 137-146

Persistent link: https://www.econbiz.de/10001578356