We study a setting in which firms produce items whose quality is ex-ante unobservable, but learned by customers over time. Firms take customer learning into account when making production decisions. We focus on the effect that the review process has on product quality. Specifically, we compare equilibrium quality levels in the setting described above to the quality that would be produced if cus...

the organizations use all appropriate tools to improve their service to the customers. the detection of especial customers and the forecast of their behavior undoubtedly can play an important role in improvement of service. in this paper, a new statistical method called the mahalanobis taguchi system has been used for this purpose. this method is used for the analysis of real data of an insuran...

Losing weight by acupuncture is an old Chinese method. Nevertheless, many physician and even people don’t believe to it. The main goal of this study is effectiveness of acupuncture on obesity. This study includes some 40 patients aged 16-48 years, with male to female ratio 1 to 2, who fulfilled with obesity criteria of this study. On the base of Obesity syndrome of diagnosis the mains body poin...

ion and levels of abstraction are important concepts in the modeling space, but the terms are rarely used in this paper. The reason is that four kinds of abstraction are part of the modeling space, corresponding A UNIFORM COMPONENT MODELING SPACE Informatica 25 (2001) 475-482 477 to the three dimensions plus views. Instead of using the general ‘abstraction’ term, each kind is discussed in its o...

In this paper, a customer incentive scheme is proposed for retailers to build an effective demand response program over the peak demand period to minimize the financial risk. Firstly, an objective function is formulated based on the market operation and an optimal incentive price is derived from this objective function. Secondly, the incentive price is employed as a part of an incentive scheme ...

widespread usage of web technology provides an opportunity for business in order to use internet as the tool for management of electronic relationship with costumers. organizations that undertake expense of investment in this field, one of their primary purposes is improvement of satisfaction of costumers. for this reason, in most of organizations which use the system of electronic relationship...

Losing weight by acupuncture is an old Chinese method. Nevertheless, many physician and even people don’t believe to it. The main goal of this study is effectiveness of acupuncture on obesity. This study includes some 40 patients aged 16-48 years, with male to female ratio 1 to 2, who fulfilled with obesity criteria of this study. On the base of Obesity syndrome of diagnosis the mains body poin...