Ács, Zoltán J. (contributor) - 2010
Erik E. Lehmann (2005), 'Does the Knowledge Spillover Theory of Entrepreneurship Hold for Regions?', Research Policy, 34 …-229 -- Zoltan J. Acs, Pontus Braunerhjelm, David B. Audretsch and Bo Carlsson (2009), 'The Knowledge Spillover Theory of …. Baumol (1968), 'Entrepreneurship in Economic Theory', American Economic Review, Papers and Proceedings, 58 (2), May, 64 …