Growth and the Smart State. Philippe Aghion, March 5, 2014, Paper. "As countries develop, the main driver of economic growth shifts from imitation to innovation. These two sources of growth require different policies and institutions. In particular, in this article we argue that the transition from an imitation-based to an innovation-based economy calls the old welfare state model into question. It is not so much the size of the state that is at stake but rather its governance. What we need to foster economic growth in developed economies is not a reduced state but a strategic state..." Link