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Potential Impacts of a Green Revolution in Africa – the Case of Ghana AgEcon
Breisinger, Clemens; Diao, Xinshen; Thurlow, James; Al-Hassan, Ramatu M..
Agricultural growth in Africa has accelerated, yet most of this growth has been driven by land expansion. Land expansion potential is reaching its limits, urging governments to shift towards a green revolution type of productivity-led growth. Given the huge public investments required, this paper aims to assess the potential impacts of a green revolution. Results from a CGE model for Ghana show that green revolution type growth is strongly pro-poor and provides substantial transfers to the rest of the economy, thus providing a powerful argument to raise public expenditure on agriculture to make a green revolution happen in Africa.
Tipo: Conference Paper or Presentation Palavras-chave: Agriculture; Green Revolution; Growth; Poverty; Africa; Ghana; CGE; Agricultural and Food Policy; International Development; D58; O13; O55.
Ano: 2009 URL: http://purl.umn.edu/51086
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Technology-Climate Interactions in the Green Revolution in India AgEcon
McKinsey, James W., Jr.; Evenson, Robert E..
This paper presents a model of the Green Revolution in India, in which the development and diffusion of HYVs, the expansion of irrigation and the expansion of multiple-cropping are treated as endogenous responses to more basic investments in agricultural technology and infrastructure, as well as to climate and edaphic endowments. We incorporate explicit climate-technology interactions in the model, in order to identify climate effects on the diffusion of HYVs, irrigation and multiple-cropping, and on Net Revenue to agriculture. We find that climate affects technology development and diffusion, and that technology development and diffusion affect the impacts of climate on agricultural productivity in India.
Tipo: Working or Discussion Paper Palavras-chave: Green Revolution; India; HYV; Rice; Wheat; Climate; Agricultural research; International Development; 112; 121; 226; 620; 710.
Ano: 1999 URL: http://purl.umn.edu/28452
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The impact of Access to Credit and Training on Technological Adoption: A Case of the Rice Sector in Tanzania AgEcon
Nakano, Yuko; Kajisa, Kei.
Using an extensive household-level data set collected in Tanzania, this paper investigates the determinants of the technological adoption of rice cultivation and of paddy yield. We especially focus on the impact of credit and training on the adoption of modern technologies. Based on empirical results, we argue that modern inputs and improved practices of rice cultivation enhance the increase in paddy yield. We also argue that the impact of credit and training on the adoption of modern technologies can differ for different technologies. If the adoption of a specific technology does not require a large amount of cash, knowledge given by training is sufficient to enhance adoption. On the other hand, those who can access credit or self-finance can adopt...
Tipo: Conference Paper or Presentation Palavras-chave: Technological Adoption; Green Revolution; Sub-Saharan Africa; Crop Production/Industries; International Development; Productivity Analysis; Research and Development/Tech Change/Emerging Technologies; O12; O13; Q16; Q18.
Ano: 2011 URL: http://purl.umn.edu/103763
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The Possibility of a Green Revolution in Sub-Saharan Africa: Evidence from Kenya AgEcon
Otsuka, Keijiro; Yamano, Takashi.
It is widely believed that a Green Revolution similar to the one achieved in Asia is impossible in Sub-Saharan Africa. Although grain yields have been stagnant in this region, there are some signs of the intensification of farming systems in the face of growing population pressure on limited land resources. In this paper we focus on the new farming system based on the use of manure produced by dairy cows, which may be termed an “Organic Green Revolution.” Using the farm household data collected from Kenya, this paper demonstrates that the Organic Green Revolution has a potential of doubling maize yields in highlands of Kenya.
Tipo: Journal Article Palavras-chave: Green Revolution; Agricultural Revolution; Organic Green Revolution; Dairy cows; Manure; Chemical fertilizer; Maize yield; International Development.
Ano: 2005 URL: http://purl.umn.edu/110141
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INSTITUTIONS AND ECONOMIC POLICIES FOR PRO-POOR AGRICULTURAL GROWTH AgEcon
Dorward, Andrew; Fan, Shenggen; Kydd, Jonathan; Lofgren, Hans; Morrison, Jamie; Poulton, Colin; Rao, Neetha; Smith, Laurence; Tchale, Hardwick; Thorat, Sukhadeo; Urey, Ian; Wobst, Peter.
This paper draws together findings from different elements of a research project examining critical components of pro-poor agricultural growth and of policies that can promote such growth in poor rural economies in South Asia and Sub-Saharan Africa. Agricultural growth, a critical driver in poverty reducing growth in many poor agrarian economies in the past, faces many difficulties in today’s poor rural areas in South Asia and Sub-Saharan Africa. Some of these difficulties are endogenous to these areas while others result from broader processes of global change. Active state interventions in ‘kick starting’ markets in 20th century green revolutions suggest that another major difficulty may be current policies which emphasize the benefits of liberalization...
Tipo: Working or Discussion Paper Palavras-chave: Agricultural growth; Rural poverty; Sub-Saharan Africa; Green Revolution; India; International Development.
Ano: 2004 URL: http://purl.umn.edu/60170
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The Green Revolution in Zimbabwe AgEcon
Alumira, Jane; Rusike, Joseph.
This paper presents a historical overview of plant breeding research, variety release and seed supply of staple food grains in Zimbabwe, and assesses the impacts of the new varieties on yields using national aggregate yield data. The paper also analyses farm-level factors determining farmers’ adoption decisions in the semi-arid areas, where the mini-green revolution lagged behind more favorable areas. The results indicate that the adoption of improved crop varieties will not lead to substantial yield gains unless improved soil management methods, such as application of manure and fertilizer, are also adopted..
Tipo: Journal Article Palavras-chave: Green Revolution; Maize; Semi-arid areas; Soil fertility management; Drought; Zimbabwe; International Development.
Ano: 2005 URL: http://purl.umn.edu/110144
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