John Van Reenen About Publications Research articlesCarbon Taxes, Path Dependency, and Directed Technical Change: Evidence from the Auto Industry1 Feb 2016. Philippe Aghion, Antoine Dechezleprêtre, David Hemous, Ralf Martin, John Van ReenenWorking papersDo tax incentives for research increase firm innovation? An RD design for R&D17 Mar 2016Carbon taxes, path dependency and directed technical change: evidence from the auto industry1 Dec 2012