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Abstract
The main object of this article is to propose an extension of the tobit model for which the error distribution follows the power-normal distribution (Gupta and Gupta, Citation2008). Inference is dealt with by using the likelihood approach. Simulation studies and application to a real data set are used to demonstrate the usefulness of the extension.
2000 Mathematics Subject Classification:
Acknowledgments
The authors acknowledge helpful comments and suggestions by two referees which substantially improved the presentation. We would also like to express our thanks to the Guest Editors of the Special Issue, Prof. Nikolai V. Kolev. The research of H. Bolfarine was supported by CNPq (Brasil). The research of H. W. Gómez was supported by FONDECYT (Chile) 1090411.