encompassing unions form. It is shown that a production function satisfying decreasing marginal productivity leads to the formation … changes in heterogeneity, e.g. increased demand for skilled labor, are also analyzed. In the most reasonable setup, a change … in heterogeneity does not affect the decision whether to form a union or not. This contrasts with the result in Jun (1989). …

valuations are homogeneous, our source of heterogeneity induces full cost-sharing and the first-best individual contributions …; further, the group probability of winning goes up. With heterogeneity in prize valuations, an increase in the effectiveness of … too low. Tragically, if productivity is low (if the prize is private in our set up) this occurs with corrupt coalitions …

voluntary environmental regulation (VER)have positive effects on SWB, but there exist the heterogeneity effects in the links …

research, we document an important source of heterogeneity in the impact of incarceration on recidivism. Incarceration creates …

of this solution in bargaining over real goods. The paper shows that there is notable heterogeneity among subjects with …