The MIT Press, Cambridge, MA, R.G. Lipsey, K. Carlaw, and C.T. Bekar (2005), Economic Transformations: General Purpose Technologies and Long Term Economic Growth, Oxford University Press, Oxford, V. Ruttan (2008), “General Purpose Technology, Revolutionary Technology, and Technological Maturity”, Staff Paper P08-3, Department of Applied Economics, University of Minnesota, April, OECD (2008), OECD Information Technology Outlook 2008, OECD, Paris. Today, high-speed communication networks support innovation throughout the economy much as electricity and transport networks spurred innovation in the past. Future innovations in many sectors will be linked to the availability of high-speed, competitive data networks and the new applications they support.