Road Network Upgrading and Overland Trade Expansion in Sub-Saharan Africa†
Road Network Upgrading and Overland Trade Expansion in Sub-Saharan Africa†
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DOI：
10.1093/jae/ejq006
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发表时间：
2010-06-01
影响因子：
1.6
通讯作者：
Wheeler, David
中科院分区：
文献类型：
--
作者：
Buys, Piet;Deichmann, Uwe;Wheeler, David
最近的研究表明，经济一体化程度低以及与区域和国际市场隔绝，在很大程度上助长了撒哈拉以南非洲的贫穷。运输基础设施差和边界限制是阻碍贸易扩展的主要因素，而贸易扩展将刺激经济增长和减贫。利用空间网络分析技术和重力贸易模型的估计，本文量化的经济升级的主要道路网络，连接该地区的主要城市地区。结果表明，从经济角度来看，大陆网络升级值得认真考虑。我们的模拟表明，撒哈拉以南非洲国家之间的陆路贸易可能在15年内扩大约2500亿美元，为农村贫困人口带来重大的直接和间接利益。为该方案筹措资金将需要约200亿美元用于初期升级，每年10亿美元用于维修。
Recent research suggests that poor economic integration and isolation from regional and international markets have contributed significantly to poverty in Sub-Saharan Africa. Poor transport infrastructure and border restrictions are major deterrents to trade expansion which would stimulate economic growth and poverty reduction. Using spatial network analysis techniques and gravity trade model estimations, this paper quantifies the economics of upgrading a primary road network that connects the major urban areas in the region. The results indicate that continental network upgrading is worth serious consideration from an economic perspective. Our simulations suggest that overland trade among Sub-Saharan African countries might expand by about $250 billion over 15 years, with major direct and indirect benefits for the rural poor. Financing the programme would require about $20 billion for initial upgrading and $1 billion annually for maintenance.