We study the provision of a public good in a social network where links are directed, i.e., the information flows one way. Our results relate, through stochastic dominance, the equilibrium outcome of such a process with the out-degree distribution of the network.
Lopez-Pintado, D. (2013). Public goods in directed networks. Economics Letters, 121(2), 160-162. https://doi.org/10.1016/j.econlet.2013.09.003 (Original work published 2013)