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...

Economists have long been sceptical of claims about the 'death of distance' - the idea that new technology has diminished the significance of geography for economic outcomes. Research by Sokbae Lee, Rachel Griffith and John Van Reenen, which looks at patent citations over a quarter of a century,...

This paper presents a single unified framework that integrates the theoretical literature on Schumpeterian endogenous growth and major strands of the empirical literatures on R&D, productivity growth, and productivity convergence. Starting from a structural model of endogenous growth following...

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...

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

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...

During this election period many Americans are feeling angry towards the very rich, especially those working in the financial sector, who helped cause the Great Recession and yet were bailed out by the government. Increases in inequality might be tolerable at a time of growing consumption for...

We analyse the role of financial sector workers in the huge rise of the share of earnings going to those at the very top of the pay distribution in the UK. Rising bankers' bonuses accounted for two-thirds of the increase in the share of the top 1% after 1999. Surprisingly, bankers' share of...

Until some political mechanism creates incentives to elect moderate representatives who can reach across the ideological divide, the US seems destined to heightened levels of policy uncertainty for many years to come. Some research suggests that such uncertainty, particularly over economic...