Discounted and Per Unit Costs of Product Warranty
构建了一个详细模型，分析三种常见保修合同对生产者和消费者的成本与收益，考虑消费者重复购买的随机性及产品独立损坏过程，并比较折现成本与单位成本，用于权衡保修与质量控制。
This paper proposes a detailed model of the costs and benefits to producers and consumers of product warranty. Three common types of product warranty contract are considered. In addition, we explicitly allow for randomness in consumer repurchase behavior and for the possibility of an independent damage process acting on products sold under warranty. The cost criteria considered are discounted costs (profits) and per unit costs (and profits). The model is used to analyze the trade-off between warranty and quality control, and to illustrate the sensitivity of warranty costs to environmental variables.