Superstars exist in classrooms and workplaces. Superstars can either intimidate others by making their peers put in less effort, or they can encourage others by inspiring everybody to “step up” their game. In this study, we analyze direct and indirect effects of a superstar on their peers...

Superstars exist in classrooms and workplaces. Superstars can either intimidate others by making their peers put in less effort, or they can encourage others by inspiring everybody to “step up” their game. In this study, we analyze direct and indirect effects of a superstar on their peers...

Superstars exist in classrooms and workplaces. Superstars can either intimidate others by making their peers put in less effort, or they can encourage others by inspiring everybody to “step up” their game. In this study, we analyze direct and indirect effects of a superstar on their peers...

Superstars exist in classrooms and workplaces. On the one hand, superstars might intimidate others, forcing their peers to exert less effort. On the other hand, superstars might encourage others because their participation in a competition encourages everybody to “step up” their game. In...

We present evidence of cheating that took place in online examinations during COVID-19 lockdowns and propose two solutions with and without a camera for the cheating problem based on the experience accumulated by online chess communities over the past two decades. The best implementable solution...