optimal sorting is balanced (i.e., minimizing the variance in ability between groups) when complementarity is weak, and … sufficiently steep, the optimal sorting can be unbalanced for all levels of complementarity or even alternate between unbalanced … groups in various ways in order to maximize total output. We explore how the optimal sorting of workers by ability in such …

We study how aggregate effort exerted in contests between groups of heterogeneous players depends on the sorting of … players into groups. We show that the optimal sorting depends on the curvature of the effort cost function. From the … steep effort cost function, the optimal sorting of players may be the one that maximizes the variation in ability across …

asymmetry and complementarity in members' efforts, and analyze how each group's internal conflict in-fluences its chance of … (common) collective action technology exhibits a high degree of complementarity. Furthermore, depending on the degree of … complementarity, the stronger player's relative contribution to external conflict may be higher in a more asymmetric group and, as a …