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dc.contributor.authorSaffari, S.
dc.contributor.authorAdnan, R.
dc.contributor.authorGreene, William
dc.date.accessioned2017-06-23T02:59:58Z
dc.date.available2017-06-23T02:59:58Z
dc.date.created2017-06-19T03:39:39Z
dc.date.issued2012
dc.identifier.citationSaffari, S. and Adnan, R. and Greene, W. 2012. Parameter estimation on hurdle poisson regression model with censored data. Jurnal Teknologi (Sciences and Engineering). 57 (SUPPL.1): pp. 189-198.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/53459
dc.identifier.doi10.11113/jt.v57.1533
dc.description.abstract

A Poisson model typically is assumed for count data. In many cases, there are many zeros in the dependent variable and because of these many zeros, the mean and the variance values of the dependent variable are not the same as before. In fact, the variance value of the dependent variable will be much more than the mean value of the dependent variable and this is called over-dispersion. Therefore, Poisson model is not suitable anymore for this kind of data because of too many zeros. Thus, it is suggested to use a hurdle Poisson regression model to overcome over-dispersion problem. Furthermore, the response variable in such cases is censored for some values. In this paper, a censored hurdle Poisson regression model is introduced on count data with many zeros. In this model, we consider a response variable and one or more than one explanatory variables. The estimation of regression parameters using the maximum likelihood method is discussed and the goodness-of-fit for the regression model is examined. We study the effects of right censoring on estimated parameters and their standard errors via an example.

dc.titleParameter estimation on hurdle poisson regression model with censored data
dc.typeJournal Article
dcterms.source.volume57
dcterms.source.numberSUPPL.1
dcterms.source.startPage189
dcterms.source.endPage198
dcterms.source.issn0127-9696
dcterms.source.titleJurnal Teknologi (Sciences and Engineering)
curtin.departmentSchool of Economics and Finance
curtin.accessStatusFulltext not available


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