Flexible‐Duration Extended Warranties with Dynamic Reliability Learning

Frequent technological innovations and price declines adversely affect sales of extended warranties (EWs) as product replacement upon failure becomes an increasingly attractive alternative. To increase sales and profitability, we propose offering flexible‐duration EWs. These warranties can appeal to customers who are uncertain about how long they will keep the product as well as to customers who are uncertain about the product's reliability. Flexibility may be added to existing services in the form of monthly billing with month‐by‐month commitments or by making existing warranties easier to cancel with pro‐rated refunds. This paper studies flexible warranties from perspectives of both customers and the provider under customers' reliability learning. We present a model of customers' optimal coverage decisions and show that customers' optimal coverage policy has a threshold structure under some mild conditions. We further show that flexible warranties can result in higher profits and higher attach rates in a homogeneous market as well as in a heterogeneous market with multiple segments differing in various dimensions.     

刍议商事留置权的成立条件——兼议我国现行法关于留置权的规定

商事留置权是指在双方商行为的场合,商主体之间基于商事活动所发生的,债权人为实现其债权而留 置债务人所有的物或有价证券的权利。我国现行法中虽然有关于留置权的规定,但该规定的适用范围过于狭窄, 适用条件过于严格,尤其不利于对商人之间基于连续性交易活动产生的债权予以保护,因此在双方商行为条件下, 我国的法律法规应扩大留置权的适用范围,对商事留置权的成立条件予以扩大解释,以确定商事留置权的流动性 担保地位。     

无权处分问题再探

无权处分制度在我国颇受争议,学者之间的讨论十分热烈,关注的焦点主要在无权处分合同的效力上。本文在界定无权处分行为中基本概念的基础上力求对关于合同效力的三种学说作出正确评价,认为效力未定说是目前最接近立法的解释,并对其有关漏洞作出补充解释,得出结论：无权处分的合同效力未定,但是不能对抗善意第三人。如此,无权处分制度才能在物权与债权制度体系下自由的生存,与善意取得制度、权利瑕疵担保制度等和谐的共处。     

考虑售后服务的两阶段供应链批发价格契约研究

在制造商提供售后服务的背景下,研究供应链的批发价格契约。结果表明：当消费者需求分布对随机变量有递增的广义失效率并对质保期有递减的广义失效率时,制造商的收益函数总是单峰的。虽然批发价格契约仍不能实现供应链的协调,但当产品质量足够高时,供应链的效率接近百分之百。     

对商品买卖中“终身保修”的理解与界定

终身保修协议是独立的无名合同,实践中过于简单的约定使其常表现为“条款待定的合同”.基于“鼓励交易”的精神应推定该类合同成立,并通过合同解释填补合同漏洞.在没有明确约定的情况下,“终身”应为针对不同类型产品在质量合格正常使用情况下确定的一般使用寿命,使用寿命从产品购买之日起计算.“保修”在没有约定为无偿的情况下应为有偿,除已约定仅收取维修所需零配件费用外,应按照当时进行此类维修的市场价格来确定维修费用.