Bloom, Nick; Schankerman, Mark; Van Reenen, John - London School of Economics (LSE) - 2005
there are two countervailing R&D spillovers: positive effects from technology spillovers and negative effects from business … stealing by product market rivals. We develop a general framework showing that technology and product market spillovers have … product market spillovers operate, but that net social returns are several times larger than private returns. The spillover …