Bookmarks (or Favorites, Hotlists) are a popular strategy to relocate interesting websites on the WWW by creating a personalized URL repository. Most current browsers offer a facility to locally store and manage bookmarks in a hierarchy of folders; though, with growing size, users reportedly have trouble to create and maintain a stable organization structure. This paper presents a novel collabo...

Objectives. This article examines how social status rewards can affect social welfare outcomes in the presence of positive and negative externalities. Method. A rational choice approach is used to characterize how individuals respond to incentives to seek high status (and avoid stigma) given existing preferences, technology, and the sources of status defined within a given reference group. Resu...

It has long been recognized that the pleasure of consuming a good may be affected by the consumption choice of other consumers. In some cases, social pressures may lead to conformity; in some others, individuals may feel the need of exclusiveness under the form of vanity. Such externalities have proven to be important in several markets. However, the market implication of these externalities ar...

Although many studies have investigated individual differences in online social networking, few have examined the recent and rapidly popularized social phenomenon of the ‘‘selfie’’ (a selfportrait photograph of oneself). In two studies with a pooled sample of 1296 men and women, we tested the prediction that individuals who score high on four narcissism sub-scales (Self-sufficiency, Vanity, Lea...