this end we develop a simple dynamic principal-agent model where both players may have feelings of altruism or spite toward …

We examine differences in altruism and laziness between public sector employees and private sector employees. Our … theoretical model predicts that the likelihood of public sector employment increases with a worker's altruism, and increases or … decreases with a worker's laziness depending on his altruism. Using data from the German Socio-Economic Panel Study, we find …

altruism sometimes provides a net incentive to report performance truthfully, rather than to bias evaluations upward. The …

altruism. We show that allowing for private provision of health care, parallel to (free) treatment in a National Health Service …