Agricultural Supply Chains, Growth and Poverty in Sub-Saharan Africa
Agricultural Supply Chains, Growth and Poverty in Sub-Saharan Africa
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撒哈拉以南非洲的农业供应链、增长和贫困
DOI：
10.1007/978-3-662-53858-6
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
Depetris Chauvin N
中科院分区：
文献类型：
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作者：
Depetris Chauvin N
这本书研究了非洲农业家庭的生产和消费决策中市场结构和国内补充因素之间的相互作用。我们感兴趣的是模拟生产要素对各种经济作物和粮食作物的生产分配，以及这种分配如何取决于供应链沿着的竞争和不同类型农民所面临的限制。该模型描述了农场，出口商和进口商在一个简单的局部均衡设置的行为。特别是，我们建立了三个不同版本的模型来处理我们在实证工作中面临的三个基本场景。也就是说，我们建立了一个模型来探讨经济作物生产（主要用于出口）的情况。然后，我们调整这个模型来处理一个国家的情况下，是一个粮食作物的净出口国。最后，我们为一个粮食作物净进口国的案例开发了一个不同版本的模型。我们研究了市场结构的变化和模型的关键参数，捕捉各种家庭约束和机构准入。我们分析了坦桑尼亚、马拉维、赞比亚、埃塞俄比亚、乌干达和马达加斯加的经济作物和粮食作物的假设价格变化引起的家庭真实的收入变化。在本书的第二部分，我们将在案例研究中发现的约束条件的背景下评估非市场机构的作用。我们提供了一个基层机构在非洲农业的作用，我们研究社会网络内外的基层机构和非GRI成员在加纳北方贫困农村地区的社区。v
This book studies the interplay between market structure and domestic complementary factors in the production and consumption decisions of agricultural families in Africa. We are interested in modelling the production allocation of factors of production to various cash and food crops and in how this allocation depends on competition along the supply chain and on the constraints faced by different types of farmers. The model describes the behaviour of farms, exporters and importers in a simple partial equilibrium setting. In particular, we build three different versions of the model to deal with the three basic scenarios that we face in our empirical work. That is, we build a model to explore the case of cash crop production (mostly for exports). We then adapt this model to deal with the case of a country that is a net exporter of a food crop. Finally, we develop a different version of the model for the case of a country that is a net importer of a food crop. We study changes in market structure and in key parameters of the model that capture various household constraints and institutional access. We analyse the changes in real income of households caused by the hypothetical price changes of cash and food crops predicted by the models’ simulations in Tanzania, Malawi, Zambia, Ethiopia, Uganda and Madagascar. In the second part of the book, we evaluate the role of non-market institutions in the context of the constraints found in our case studies. We provide a review of the role of grass-roots institutions in agriculture in Africa, and we study social networking inside and outside communities among both members of grass-roots institutions and non-GRI members in a poor rural district of northern Ghana. v