We model a bipartite network in which links connect agents with public goods. Agents play a voluntary contribution game in which they decide how much to contribute to each public good they are connected to. We show that the problem of finding a Nash equilibrium can be posed as a non-linear...

Powerful currents have reshaped the structure of families over the last century. There has been (i) a dramatic drop in fertility and greater parental investment in children; (ii) a rise in married female labor-force participation; (iii) a significant decline in marriage and a rise in divorce; (iv)...

The paper investigates the determinants of ethnic heterogeneity of the Italian provinces. Among other factors, the paper tests empirically whether gradual improvements in distant communication boost the generation of ethnically heterogeneous provinces. Consequently to easier communication,...