Bayesian Semiparametric Regression: An Exposition and Application to Print Advertising Data

Michael Smith, Sharat K. Mathur and Robert Kohn

No 267935, Department of Econometrics and Business Statistics Working Papers from Monash University, Department of Econometrics and Business Statistics

Abstract: A new regression based approach is proposed for modeling marketing databases. The approach is Bayesian and provides a number of significant improvements over current methods. Independent variables can enter into the model in either a parametric or nonparametric manner, significant variables can be identified from a large number of potential regressors and an appropriate transformation of the dependent variable can be automatically selected from a discrete set of pre-specified candidate transformations. All these features are estimated simultaneously and automatically using a Bayesian hierarchical model coupled with a Gibbs sampling scheme. Being Bayesian, it is straightforward to introduce subjective information about the relative importance of each variable, or with regard to a suitable data transformation. The methodology is applied to print advertising Starch data collected from thirteen issues of an Australian women's monthly magazine. The empirical results highlight the complex and detailed relationships that can be uncovered using the methodology.

Keywords: Research; Methods/Statistical; Methods (search for similar items in EconPapers)
Pages: 44
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Persistent link: https://EconPapers.repec.org/RePEc:ags:monebs:267935

DOI: 10.22004/ag.econ.267935

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