We examine the relationship between the deployment of broadband, which we classify as a general purpose technology, and the productivity of the deploying firms using panel data that comprises information on all the major local exchange carriers in the United States telecommunications industry...

We have studied urban public traffic networks from the viewpoint of complex networks and game theory. Firstly, we have empirically investigated an urban public traffic network in Beijing in 2003, and obtained its statistical properties. Then a simplified game theory model is proposed for...