详情

原文传递 Infrastructure and Growth in South Africa: Direct and Indirect Productivity Impacts of 19 Infrastructure Measures

题名：	Infrastructure and Growth in South Africa: Direct and Indirect Productivity Impacts of 19 Infrastructure Measures
责任者：	Fedderke, Johannes W.<=>Bogetić, Željko
关键词：	Economic Theory and Research；Transport Economics Policy and Planning；Public Sector Economics and Finance；Macroeconomics and Economic Growth；Economic Growth；Poverty Reduction；Inequality；Transport；Public Sector Development
学科分类：	交通运输规划与管理
摘要：	Empirical explorations of the growth and productivity impacts of infrastructure have been characterized by ambiguous (countervailing signs) results with little robustness. A number of explanations of the contradictory findings have been proposed. These range from the crowd-out of private by public sector investment, non-linearities generating the possibility of infrastructure overprovision, simultaneity between infrastructure provision and growth, and the possibility of multiple (hence indirect) channels of influence between infrastructure and productivity improvements. The authors explore these possibilities using panel data for South Africa over the 1970-2000 period, and a range of 19 infrastructure measures. Using a number of alternative measures of productivity, the prevalence of ambiguous (countervailing signs) results, with little systematic pattern is also shown to hold for their data set in estimations that include the infrastructure measures in simple growth frameworks. The authors demonstrate that controlling for potential endogeneity of infrastructure in estimation robustly eliminates virtually all evidence of ambiguous impacts of infrastructure, due for example to possible overinvestment in infrastructure. Controlling for the possibility of endogeneity in the infrastructure measures renders the impact of infrastructure capital not only positive, but of economically meaningful magnitudes. These findings are invariant between the direct impact of infrastructure on labor productivity, and the indirect impact of infrastructure on total factor productivity.
出版机构：	World Bank
报告类型：	咨询报告
详细地址：	http://documents.worldbank.org/curated/en/2006/08/6988207/infrastructure-growth-south-africa-direct-indirect-productivity-impacts-19-infrastructure-measures
资源类型：	科技（咨询、行业）报告
初始创建时间：	2006-08
最新修改时间：	2017-12-14T08:57:35Z