La communication numérique des organisations semble ne pouvoir faire l’économie du recours aux plateformes de médias sociaux. Leur usage est dévolu community managers (gestionnaires communautés). Les activités ces professionnels sont sous l’emprise standards qui prescrivent les pratiques pertinentes, autorisent usages, évaluent leur performance et encadrent relations avec publics comme contenus...

Abstract Consider two principles for social evaluation. The first, “laissez-faire”, says that mean-preserving redistribution away from laissez-faire incomes should be regarded as a worsening. This principle captures key aspect of libertarian political philosophy. second, weak Pareto, states an increase in the disposable income each individual improvement. We show combination implies total ought...

This research tends to ascertain several traditional and socio-cultural barriers to English language learning in Saudi Arabia and to explore more ways than before for making teaching and learning more effective. The findings of four quantitative and qualitative surveys conducted in this regard reveal a unique traditional and socio-cultural milieu, which turns the Saudi EFL learners lackadaisica...

We consider that individuals, initially living in a Mirrleesian economy A, have outside options consisting in settling down in a laissez-faire country B while paying positive migration costs. We rst examine the impact of the threat of migration, assuming participation constraints are taken into account for all individuals, and show that optimal linear income taxes are obtained as corner solutio...

How does Darwin’s Darwinism relate to social Darwinism and eugenics? Likemany foes ofDarwinism, past and present, theAmerican populist and creationist William Jennings Bryan thought a straight line ran from Darwin’s theory (‘a dogma of darkness and death’) to beliefs that it is right for the strong to crowd out the weak, and that the only hope for human improvement lay in selective breeding.1 D...

This paper contrasts the notions of learning, teaching and development as these are conceptualized in two versions of constructivism: the socio-interactional one (in which Piagetian and Vygotskian insights are often merged) versus the one founded by Vygotsky and expanded in activity theory (especially by Galperin and Davydov). We reveal a broad conceptual commonality that makes these frameworks...

Consensus constructs are a common topic in level-of-analysis research and, yet, leadership researchers have failed to consider their theoretical appeal as a contextual factor in the explanation of work-related attitudes and behaviors. Drawing on a sample of 27 naturally occurring occupational groups composed of 828 U.S. Air Force personnel, we examined the degree to which consensus in group mem...

Social insurance for the elderly is judged responsible for the widely observed trend towards early retirement. In a world of laissez-faire or in a first-best setting, there would be no such trend. However, when first-best instruments are not available, because health and productivity are not observable, the optimal social insurance policy may imply a distortion on the retirement decision. The m...