Social comparisons are an essential source of information about the self. Research in social psychology has shown individual variation in the tendency toward comparison with other people's opinions and abilities, raising the question of whether social comparisons are driven by psychological...

Environmental employment is an issue with high interest to the public and to policy makers. Yet, the debate is blurred by a great number of distinct definitions and hence estimates of environmental employment. Therefore it is essential to carefully document delimitations and methods used in any...

Income comparisons are among the key mechanisms used to explain satisfaction and happiness, among other outcomes. Yet progress on the questions of who people use as social referents and whether differential selection patterns exist can only be made based on valid and reliable measures of pay...