ABSTRACT In much of Eastern Africa, the last decade has seen a renewed interest in spatial development plans that link mineral exploitation, transport infrastructure and agricultural commercialisation. While these development corridors have yielded complex results – even in cases where significant investments are yet to happen – much of the existing analysis continues to focus on economic and implementation questions, where failures are attributed to inappropriate incentives or lack of ‘political will’. Taking a different – political economy – approach, this article examines what actually happens when corridors ‘hit the ground’, with a specific interest to the diverse agricultural commercialisation pathways that they induce. Specifically, the article introduces and analyses four corridors – LAPSSET in Kenya, Beira and Nacala in Mozambique, and SAGCOT in Tanzania – which are generating ‘demonstration fields’, economies of anticipation and fields of political contestations respectively, and as a result, creating – or promising to create – diverse pathways for agricultural commercialisation, accumulation and differentiation. In sum, the article shows how top-down grand-modernist plans are shaped by local dynamics, in a process that results in the transformation of corridors, from exclusivist ‘tunnel’ visions, to more networked corridors embedded in local economies, and shaped by the realities of rural Eastern Africa.

中文翻译：

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“示范领域”，预期和竞争：东部非洲的土地变化和发展走廊的政治经济

摘要在东部非洲的大部分地区，最近十年来人们对将矿产开采，运输基础设施和农业商业化联系起来的空间发展计划重新产生了兴趣。尽管这些发展走廊取得了复杂的结果（即使在尚未进行重大投资的情况下），但许多现有分析仍将重点放在经济和实施问题上，其中失败归因于不适当的动机或缺乏“政治意愿”。本文采用一种不同的（政治经济学）方法，研究了走廊“撞上地面”时实际发生的情况，并特别关注它们引发的多种农业商业化途径。具体来说，本文介绍并分析了四个走廊-肯尼亚的LAPSSET，莫桑比克的贝拉和纳卡拉，坦桑尼亚的SAGCOT和SAGCOT分别产生了“示范领域”，预期经济和政治争斗领域，因此，创造了（或有望创造）农业商业化，积累和分化的多种途径。总之，本文显示了自上而下的大现代主义计划是如何通过局部动力来形成的，这一过程导致走廊从排他主义的“隧道”愿景转变为嵌入地方经济的网络化走廊，并受到东非农村的现实。积累和分化。总之，本文显示了自上而下的大现代主义计划是如何通过局部动力来形成的，这一过程导致走廊从排他主义的“隧道”愿景转变为嵌入地方经济的网络化走廊，并受到东非农村的现实。积累和分化。总之，本文显示了自上而下的大现代主义计划是如何通过局部动力来形成的，这一过程导致走廊从排他主义的“隧道”愿景转变为嵌入地方经济的网络化走廊，并受到东非农村的现实。