We examine the "home bias" of international knowledge spillovers as measured by the speed of patent citations (i.e. knowledge spreads slowly over international boundaries). We present the first compelling econometric evidence that the geographical localization of knowledge spillovers has fallen...

How much does US-based R&D benefit other countries and through what mechanisms? We test the "technologysourcing" hypothesis that foreign research labs located on US soil tap into US R&D spillovers and improvehome country productivity. Using panels of UK and US firms matched to patent data we...

This paper investigates whether there is convergence in Total Factor Productivity towards the technological frontier at the establishment level. We find convergence to the frontier is statistically and quantitatively important, suggesting the existence of technology spillovers. Foreign...

This paper investigates the economic impact of the government's proposed new UK R&D tax credit. We measure the benefit of the credit by the effect on value added in the short and long?run. This is simulated from existing econometric estimates of the tax?price elasticity of R&D and the effect of...

Many writers have claimed that R&D has two 'faces'. In addition to the conventional role of stimulating innovation, R&D enhances technology transfer by improving the ability of firms to learn about advances in the leading edge ('absorptive capacity'). In this paper we document that there has...

This paper examines the relationship between foreign ownership and productivity, paying particular attention totwo issues neglected in the existing literature - the role of multinationals in service sectors and the importanceof R&D activity conducted by foreign multinationals. We review existing...