In this paper, we propose an explanatory model of the continuance intention to use social networking sites (SNS). Our aim is to extend the post adoptive model by incorporating Habit and Information Overload as antecedents to SNS continuance intention. A quantitative approach based on an online survey administered to 320 executive managers in France confirms the positive role of habit in generat...

Adaptive systems are characterized by the ability to monitor changes in their volatile world and react to monitored changes when needed. The ultimate goal of adaptation is that users’ requirements are always met correctly and efficiently. Adaptation is traditionally driven by the changing state of the system internal and its surrounding environment. Such state should be monitored and analyzed t...

Social comparison, in which people evaluate their opinions and abilities by comparing them with the opinions and abilities of others, is a central feature of human social life. Previous work has highlighted the importance of social comparison in reward processing. However, the time-course of the social comparison effect in outcome evaluation remains largely unknown. The purpose of this study wa...

The present research examined social loafing in groups across different stages of group development. Individuals working in newly formed groups worked harder in the group setting than alone, although this difference was non-significant. However, individuals working in groups that were at the midpoint or end of their existence performed better when working by themselves. This latter finding is c...

Adaptive systems are characterized by the ability to monitor changes in their volatile world and react to monitored changes when needed. The ultimate goal of adaptation is that users’ requirements are always met correctly and efficiently. Adaptation is traditionally driven by the changing state of the system internal and its surrounding environment. Such state should be monitored and analyzed t...

Influence maximization, defined by Kempe, Kleinberg, and Tardos (2003), is the problem of finding a small set of seed nodes in a social network that maximizes the spread of influence under certain influence cascade models. In this paper, we propose an extension to the independent cascade model that incorporates the emergence and propagation of negative opinions. The new model has an explicit pa...

This research examines how attention and accuracy motivation moderate stereotyping in person perception. Hypotheses were derived from the stereotype validity model, which proposes that perceivers are more likely to use a stereotype as the basis of their impressions when they believe that the generalized beliefs contained within it are valid for the particular target whom they are judging. Consi...

In order to introduce this special issue of Contexto Internacional, we first seek to provide a panoramic understanding of the Latin American political landscape. Next, we consider the new (and not so new) development strategies adopted by Latin American states, and their implications for foreign policy and international relations. Following this, we offer a brief review of the literature on Lat...