Is the UK doing enough innovative activity? International comparative evidence
比较英国与德、法、美等国的研发投入强度，发现英国2000年研发支出占GDP仅1.9%，低于他国，这可能解释其生产率差距，对关注创新政策的经济学者有参考价值。
Policy makers in the UK and the EU have been concerned that not enough resources are being devoted to innovative activities. The Barcelona European Council recently set a target to raise European research and development (R&D) expenditure to 3% of GDP. Recent figures for the UK show that Gross Expenditure on R&D was 1.9% of GDP in 2000, falling behind Germany, France and the US. This low R&D intensity is cited as a potential reason underlying the UK's productivity gap vis-a-vis those countries.