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研究生(外文):Sheng-En Chiou
論文名稱(外文):Optimal Consumer Return Policy with Deadline
外文關鍵詞:UtilityProduct return policiesReturn deadline
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In the consumer-adoption process, consumer will confirm the function and appearance of products first, if it fits the requirement, they will decide whether purchase or not. However, if consumer purchase products through mail, online-shopping, TV-shopping, etc., they can only get information from these products through catalog, image or others introduced, therefore, consumers may be seized with remorse by different cognitive. Many retailers, even bricks and mortar, will provide a refund guarantee for similar products.
This paper develops a model of consumer return policies. In our model, consumers face valuation uncertainty and realize their valuations only after purchase. However, consumer’s valuation will decline from time to time after purchasing product. For example, if we brought a new product, the longer period we've used, the perception of the product might decline, therefore, we want to change for new products. In this environment, consumers make two decisions sequentially. Initially, they decide purchase the product. If so, they then decide whether to return it after privately observing their own valuation.
There is also aggregate demand uncertainty. The seller’s decisions include the price, the stocking quantity, as well as the refund to be paid and return deadline. In addition, the influence of the return deadline on consumers’ behavior and the pricing and the inventory policies of the seller are systematically investigated.

摘要 I
Abstract II
List of Tables V
List of Figures VI
Chapter 1 Introduction 1
1-1 Background and Motivation 1
1-2 Research Objective 3
Chapter 2 Literature review 4
2-1 Decision models based on utility 4
2-2 Consumer return behavior 5
2-3 Product return policies 6
Chapter 3 Model and Analysis 8
3-1 Environment statement and notation 8
3-2 Consumer return behavior 10
3-2-1 Decision model based on consumer’s utility 10
3-2-2 The structure of the consumer utility parameter, θ"1" 14
3-2-3 The structure of the consumer utility parameter, "θ2,t" 16
3-3 Model 18
3-3-1 Model 1 without return deadline 18
3-3-2 Model 2 with return deadline 19
Chapter 4 Numerical example 22
4-1 Model 1 without return deadline 22
4-2 Model 2 with return deadline 23
4-2-1 Situation 1. Common brand in the model 2 24
4-2-2 Situation 2. Luxury brand in the model 2 25
4-2-3 Profit comparison with two situation 27
Chapter 5 Sensitive analysis 28
5-1 Sensitivity analysis of parameter α 28
5-2 Sensitivity analysis of parameter β 30
5-3 Sensitivity analysis of parameter γ 31
5-4 Sensitivity analysis of parameter w 33
5-5 Sensitivity analysis of parameter d 35
5-6 Sensitivity analysis of parameter c 37
5-7 Sensitivity analysis of parameter sr 37
Chapter 6 Conclusion and future research 40
6-1 Conclusion 40
6-2 Future research 41
References 43

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