This paper reports the results of an experimental investigation of dynamic games in
networks. In each period, the subjects simultaneously choose whether or not to make an
irreversible contribution to the provision of an indivisible public good. Subjects observe the
past actions of other subjects if and only if they are connected by the network. Networks may
be incomplete so subjects are asymmetrically informed about the actions of other subjects in
the same network, which is typically an obstacle to the attainment of an efficient outcome …