In a seminal paper, Goyal and Moraga-Gonzalez (2001) use an undirected network to characterize knowledge flows between firms engaging in research in an oligopolistic market. In their paper, firms are regarded as inhabiting a research joint venture (RJV), if they share the same edge of the network.

Using the CATI Database of cooperative research and development (R&D) agreements, this paper applies methods from social network theory to study emergence of networks of firms cooperating in research joint ventures (RJVs) during the Twentieth Century. In this paper, a cooperative agreement between firms is modeled as a connecting link in a network, where the nodes of this network represent participating firms.

In a seminal paper, Goyal and Moraga-Gonzalez (2001) use an undirected network to characterize knowledge flows between firms engaging in research in an oligopolistic market. In their paper, firms are regarded as inhabiting a research joint venture (RJV), if they share the same edge of the network.

In a seminal paper, Goyal and Moraga-Gonzalez (2001) use an undirected network to characterize knowledge ows between firms engaging in research in an oligopolistic market. In their paper, firms are regarded as inhabiting a research joint venture (RJV), if they share the same edge of the network. These firms are allowed an R&D spillover of 1; the outside firms (firms not sharing an edge in the network) are permitted a constant knowledge spillover that is less than one.