Transport infrastructure investment: implications for growth and productivity
综述公共投资对增长和生产力的理论与证据，指出公共资本对产出和私人投资有积极影响，但部分被税收抵消；强调英国未来可能面临公共资本短缺，并建议增加道路投资同时配套全国性道路收费方案。
Theory and evidence on the effects of public investment on growth and productivity are reviewed. It is concluded that, on average, public capital has positive impacts on output and private investment, partly offset by the effects of the taxation needed to finance it. A possible future shortfall in public capital in the UK is highlighted. The paper also reviews the contribution of transport infrastructure to productivity and considers implications for cost–benefit analysis. It is suggested that there is a case for greater UK investment in roads but, ideally, this should be implemented along with an efficient national road-pricing scheme.