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Road networks and enterprise performance in Ethiopia: Evidence from the road sector development programme

机译：埃塞俄比亚的道路网络和企业绩效：来自道路部门发展计划的证据

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摘要

Poor infrastructure and high transport costs are among the major constraining factors for Africa’s global competitiveness and economic growth (World Bank 2009, Bloom and Sachs 1998). Transport costs in Africa are indeed among the highest in the developing world. Recently, many African countries have begun to address this problem through large-scale investment programmes in infrastructure. Existing studies associate improvements in transport networks with a range benefits including poverty reduction, international competitiveness and economic growth (Banerjee et al. 2012, Hendersen 2000, Buys et al. 2010). More explicitly, lower transport costs imply improved market access for firms, economies of scale and integration across geographic locations (Lall et al. 2004, Graham 2007, Holl 2006, 2011). Reduced transport costs may also lower input prices, facilitate access to specialised labour, and promote agglomeration economies. It is through these channels that the quality of transport infrastructure is likely to affect enterprise performance.
机译：基础设施差和运输成本高是非洲全球竞争力和经济增长的主要制约因素（世界银行，2009； Bloom and Sachs，1998）。非洲的运输成本确实是发展中国家中最高的。最近，许多非洲国家已经开始通过大规模的基础设施投资计划来解决这个问题。现有研究将交通网络的改善与一系列好处联系在一起，包括减少贫困，国际竞争力和经济增长（Banerjee等，2012； Hendersen，2000； Buys等，2010）。更明确地讲，较低的运输成本意味着公司可以改善市场准入，规模经济和跨地理位置的整合（Lall等人，2004； Graham，2007； Holl，2006，2011）。降低的运输成本还可以降低投入价格，促进获得专门劳动力的机会，并促进集聚经济。正是通过这些渠道，运输基础设施的质量可能会影响企业的绩效。

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