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Specification Tests Based on the Heterogeneous Generalized Gamma Model of Duration: With an Application to Kennan's Strike Data

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  • Jaggia, Sanjiv

Abstract

In this paper, tests for neglected heterogeneity and functional form misspecification of some commonly used parametric distributions are derived within a heterogeneous generalized gamma model. It is argued that the conventional test of heterogeneity may not be valid when the underlying hazard function is misspecified. Hence, if the estimated hazard function is deemed restrictive, tests for functional form misspecification should accompany any test of heterogeneity. An empirical illustration based on Kennan's (1985) model of strikes is used to show that incorrect inferences may be drawn, as in a number of previous analyses, if the relevant restrictions are not tested jointly. Copyright 1991 by John Wiley & Sons, Ltd.

Suggested Citation

  • Jaggia, Sanjiv, 1991. "Specification Tests Based on the Heterogeneous Generalized Gamma Model of Duration: With an Application to Kennan's Strike Data," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 6(2), pages 169-180, April-Jun.
    • Handle: RePEc:jae:japmet:v:6:y:1991:i:2:p:169-80
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    Cited by:

    1. Beyene, Abebe D. & Koch, Steven F., 2013. "Clean fuel-saving technology adoption in urban Ethiopia," Energy Economics, Elsevier, vol. 36(C), pages 605-613.
    2. Simon Peters, 2000. "On the use of the RESET test in microeconometric models," Applied Economics Letters, Taylor & Francis Journals, vol. 7(6), pages 361-365.
    3. Godfrey, Leslie G & Orme, Chris D, 1996. "On the Behavior of Conditional Moment Tests in the Presence of Unconsidered Local Alternatives," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 37(2), pages 263-281, May.
    4. E. Fe-Rodríguez & C. Orme, 2006. "On the sensitivity of Kernel-based Conditional Moment Tests to Unconsidered Local Alternatives," Economics Discussion Paper Series 0606, Economics, The University of Manchester.
    5. Matsumoto, Shigeru, 2011. "A duration analysis of environmental alternative dispute resolution in Japan," Ecological Economics, Elsevier, vol. 70(4), pages 659-666, February.
    6. Refik Soyer & Feng Xu, 2010. "Assessment of mortgage default risk via Bayesian reliability models," Applied Stochastic Models in Business and Industry, John Wiley & Sons, vol. 26(3), pages 308-330, May.

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