Parameter nonstationarity in retail choice models |
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| Authors: | Avijit Ghosh |
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| Institution: | New York University, USA |
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| Abstract: | The question of spatial nonstationarity in retail choice models generally has been ignored in the literature. This paper discusses why such nonstationarity might arise and presents an empirical test of nonstationarity in grocery choice data collected from a midwestern city. Based on these findings a nonstationarity retail choice model is proposed. The nonstationary model predicts data from a hold-out sample better than the stationary model. |
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| Keywords: | Address correspondence to Avijit Ghosh Department of Marketing New York University 90 Trinity Place New York NY 10001 USA |
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