conclusions the results of this study suggested that parental monitoring and affiliation with deviant peers largely explained sexual risk taking among adolescents. therefore, prevention efforts aimed at reducing risky sex should compose of these factors. in fact, the results suggested that earlier prevention efforts may be warranted. results according to the results, about one-fifth of subjects...

We investigate how and why the productivity of a worker varies as a function of the productivity of her co-workers in a group production process. In theory, the introduction of a high productivity worker could lower the effort of incumbent workers because of free riding; or it could increase the effort of incumbent workers because of peer effects induced by social norms, social pressure, or lea...

W examine whether the likelihood of entrepreneurial activity is related to the prior career experiences of an individual’s coworkers, using a unique matched employer–employee panel data set. We argue that coworkers can increase the likelihood that an individual will perceive entrepreneurial opportunities as well as increase his or her motivation to pursue those opportunities. We find that an in...