Given the growth of the service sector, and advances in information technology and communications that facilitate the management of relationships with customers, models of service and relationships are a fast-growing area of marketing science. This article summarizes existing work in this area and identifies promising topics for future research. Models of service and relationships can help mana...

We extend Schmittlein et al.’s model (1987) of customer lifetime value to include satisfaction. Customer purchases are modeled as Poisson events and their rates of occurrence depend on the satisfaction of the most recent purchase encounter. Customers purchase at a higher rate when they are satisfied than when they are dissatisfied. A closed-form formula is derived for predicting total expected ...

As more firms begin to collect (and seek value from) richer customer-level datasets, a focus on the emerging concept of customer-base analysis is becoming increasingly common and critical. Such analyses include forward-looking projections ranging from aggregate-level sales trajectories to individual-level conditional expectations (which, in turn, can be used to derive estimates of customer life...

Comparison of the theory of Rabi oscillations with experiment [M. Wilczewski and M. Czachor, Phys. Rev. A 79, 033836 (2009)] suggests that cavity lifetime parameters obtained in measurements with many photons may be much smaller than those applicable to almost vacuum states of light. In this context, we show that the conclusion remains unchanged even if one takes a more realistic description of...

Anopheles (Nyssorhynchus) oswaldoi (Peryassú) comprises a species complex in South America. Specimens from two localities in east Mata Atlântica were characterized both at the morphological and molecular level as An. oswaldoi s.s. Intraspecific variation of the shape of the apex of the aedeagus of the male genitalia of specimens of Anopheles (Nyssorhynchus) oswaldoi s.s. from Vale do Ribeira, M...

Lifetime warranties is becoming popular as they provide assurance to buyer for longer reliable service and greater customer peace of mind for the whole life of the product. By offering a lifetime warranty, both the manufacturer and the buyer are exposed to uncertainties and risks of warranty pricing and product performance during the lifetime of the product. This paper analyses the sensitivity ...

As I come to the end of my term as editor of the Journal of Pediatric Psychology, I am pleased to report that our publication continues to improve. As the official record of an academically young field, issue by issue the Journal demonstrates that pediatric psychology is maturing into a most productive field. It has been an honor to edit the Journal. As the previous editors did (Kazak, 2002; La...