Anderson describes "The Long Tail" in online retailing and Silverstein and Fiske describe "Trading Up" to luxury goods. A more complete explanation of consumer behavior is based on informedness and pursuit of products that truly meet individual wants and needs, cravings and longings. As truly informed consumers are increasingly able to find exactly what they want and willing to pay premium prices to obtain products with perfect fit for them, companies have responded with new product portfolio strategies and new pricing strategies, based on the concepts of resonance marketing and hyperdifferentiation. This is consumers' pursuit of products that better for them. It is not trading up, but trading out. Consumers use information in different ways in different shopping experiences. In product categories where consumers exhibit extreme differences in preferences and where they also seek delight, such as the selection of new craft beers, the number of delighted reviewers and the strength of positive reviews are the best predictors of success. In contrast, when consumers seek to avoid disaster in an online shopping experience, such as when consumers shop for an unfamiliar discount hotel online, it is the absence of truly negative reviews that offers the best predictor of online sales success.

Article Share on The future of advertising and the value of social network websites: some preliminary examinations Authors: Eric K. Clemons Univerisity of Pennsylvania, Philadelphia, PA Univerisity of Pennsylvania, Philadelphia, PAView Profile , Steve Barnett Bardo Consulting, New York, NY Bardo Consulting, New York, NYView Profile , Arjun Appadurai The New School, New York, NY The New School, New York, NYView Profile Authors Info & Claims ICEC '07: Proceedings of the ninth international conference on Electronic commerceAugust 2007 Pages 267–276https://doi.org/10.1145/1282100.1282153Published:19 August 2007Publication History 38citation5,378DownloadsMetricsTotal Citations38Total Downloads5,378Last 12 Months83Last 6 weeks21 Get Citation AlertsNew Citation Alert added!This alert has been successfully added and will be sent to:You will be notified whenever a record that you have chosen has been cited.To manage your alert preferences, click on the button below.Manage my AlertsNew Citation Alert!Please log in to your account Save to BinderSave to BinderCreate a New BinderNameCancelCreateExport CitationPublisher SiteGet Access

There has been an increase in the attention paid to the strategic potential of information systems and a new willingness to accept the possibility that information systems can be the source of strategic gains. This belief is reflected in a host of publications, from the popular press to respected journals. Much of this has been supported by a very limited set of prominent and well publicized success stories, principally involving marketing and distribution, financial services, and the airlines. Unfortunately, there has been little attempt at an analysis that abstracts from these experiences to determine factors that determine strategic success. This can be attributed in part to the absence of attention paid to unsuccessful ventures in the use of information technology for competitive advantage. Although this paper relies on the same anecdotes, it augments them with data on a few unsuccessful attempts to exploit information technology and with economic theory where appropriate. General conditions that appear necessary for sustainable competitive advantage are developed.

The role of the external schema is to support user views of data and thus to provide programmers with easier data access. This author believes that an external schema facility is best based on hierarchies, both simple and recursive. After a brief introduction to an external schema facility to support simple hierarchical user views, the requirements for a facility for recursive hierarchies are listed and the necessary extensions to the external schema definition language are offered. Functions that must be provided for generality in definition are node specification and node control. Tree traversal functions must be provided for processing. Definitions of each and examples of use are presented.

An alerter is a program which monitors a database and reports to some user or program when a specified condition occurs. It may be that the condition is a complicated expression involving several entities in the database; in this case the evaluation of the expression may be computationally expensive. A scheme is presented in which alerters may be placed on a complex query involving a relational database, and a method is demonstrated for reducing the amount of computation involved in checking whether an alerter should be triggered.