An approach is developed to examine the impact of product characteristics on choice using a quantity-dependent hedonic model with retail panel data. Since panel data for individual products from retail settings can include a large number of zero sales. a modification of the zero-inflated Poisson (ZIP) regression model is proposed for estimation. Results for this model compare favorabl... https://lightspeedlovers.shop/product-category/clitoral-vibrators/
Clitoral Vibrators
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