非洲贸易网络的空间效率低下问题

IF 5.1 1区 经济学 Q1 ECONOMICS Journal of Development Economics Pub Date : 2024-06-13 DOI:10.1016/j.jdeveco.2024.103319
Tilman Graff
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引用次数: 0

摘要

我对非洲每个国家的运输网络效率进行了评估。利用各种来源的空间数据,我模拟了覆盖整个非洲大陆的 7 万多条线路上的贸易流。我对网络空间进行了最大化,为每个非洲国家找到了最佳公路系统。根据我的模拟预测,非洲将从重组其国家公路系统中获得 1.3% 的总福利,而将其最优化地扩大十分之一将获得 0.8% 的总福利。然后,我构建了一个地方网络效率低下的数据集,发现殖民时期的基础设施项目极大地扭曲了贸易网络,使其趋向于今天的次优均衡状态。我发现有暗示性证据表明,地区偏袒在维持这些不平衡方面发挥了作用。
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Spatial inefficiencies in Africa’s trade network

I assess the efficiency of transport networks for every country in Africa. Using spatial data from various sources, I simulate trade flows over more than 70,000 links covering the entire continent. I maximise over the space of networks and find the optimal road system for every African state. My simulations predict that Africa would gain 1.3% of total welfare from reorganising its national road systems, and 0.8% from optimally expanding it by a tenth. I then construct a dataset of local network inefficiency and find that colonial infrastructure projects significantly skew trade networks towards a sub-optimal equilibrium today. I find suggestive evidence that regional favouritism played a role sustaining these imbalances.

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来源期刊
CiteScore
8.30
自引率
4.00%
发文量
126
审稿时长
72 days
期刊介绍: The Journal of Development Economics publishes papers relating to all aspects of economic development - from immediate policy concerns to structural problems of underdevelopment. The emphasis is on quantitative or analytical work, which is relevant as well as intellectually stimulating.
期刊最新文献
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