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Abstract Details
Activity Number:
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240
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Type:
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Contributed
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Date/Time:
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Monday, July 30, 2012 : 2:00 PM to 3:50 PM
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Sponsor:
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Section on Statistics in Marketing
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Abstract - #304779 |
Title:
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A Competing Risk and Bayesian Learning Model of Retail Out-of-Stocks
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Author(s):
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Jason Duan*+ and Frenkel ter Hofstede
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Companies:
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The University of Texas at Austin and The University of Texas at Austin
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Address:
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1 University Station B6700, Austin, TX, 78712-0218, United States
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Keywords:
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competing risk ;
choice model ;
Bayesian learning ;
out-of-stock ;
promotion ;
inventory
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Abstract:
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In this study we investigate the effects of out-of-stocks on consumer purchase behavior at retail outlets. When a consumer faces an out-of-stock situation of the product of her choice, she may decide to postpone the purchase, choose a different package size of the same brand or switch to another brand. Switching due to out-of-stocks can help the consumer gain more information on different brands and package sizes, which in turn may change the consumer's future product preferences. Such changes have an impact on a retailer's category profit. Based on structural utility maximization, we develop a discrete-time competing risk hazard model which simultaneously explains consumers' purchase incidences, timing and product choices. To capture the long-term impact of out-of-stock, we allow consumers to learn from past experiences with the products, some of which result from out-of-stocks. We specify a Bayesian learning model in which consumers update their preferences. We apply our methodology to two year purchase histories of a panel of consumers for a product category characterized by frequent out-of-stocks. Our estimation uses individual-level data and complete information on product ava
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