Previous studies have shown that an oath can reduce lying at an individual level. Can oaths reduce lying in groups, a context where the prevalence of lying is typically higher? Results from a lab experiment reveal that the impact of an oath on lying in a group context depends on the incentive...

I study a one-way flow connections model in which players are heterogeneous with respect to values and the costs of establishing a link. I first show that values and costs asymmetries are crucial in determining the level of connectedness of a network. Interestingly, unconnected equilibria are...