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Developing Consistent Marginal Effect Estimates in a Simultaneous Equation Model with Limited Dependent Variables

Authored by:
Atwood, Joseph A.; Bittinger, Alison; Smith, Vincent H.
Publisher:
University of Minnesota, March 2013, Staff Paper P13-1, 40 pages.
Topics: 

We demonstrate that Theil-type variance corrections are required to obtain consistent marginal effect estimates in Nelson-Olsen's two-stage limited dependent variable (2SLDV) model.

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Putting Gender on the Map: Methods for Mapping Gendered Farm Management Systems in Sub-Saharan Africa

Authored by:
Meinzen-Dick, Ruth; van Koppen, Barbara; Behrman, Julia; Karelina, Zhenya; Akamandisa, Vincent; Hope, Lesley; Wielgosz, Ben
Publisher:
International Food Policy Research Institute (IFPRI), January 2012, IFPRI Discussion Paper 1153, 64 pages.
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Although the different roles of men and women in agriculture in different parts of Sub-Saharan Africa have been widely acknowledged, there have not been consistent efforts to collect data on these patterns. This paper presents a way of classifying gendered farm management systems and then describes pilots of four different approaches to collecting and georeferencing information on the dominant pattern in each area.

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Mapping Marginality Hotspots – Geographical Targeting for Poverty Reduction

Authored by:
Graw, Valerie; Ladenburger, Christine
Publisher:
University of Bonn, Center for Development Research, January 2012, ZEF Working Paper Series 88, 31 pages.
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This mapping approach aims to make the marginalized and poor visible by identifying areas with difficult biophysical and socio-economic conditions.

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Climate Risk Management Through Sustainable Land Management in Sub-Saharan Africa

Authored by:
Nkonya, Ephraim; Place, Frank; Pender, John; Mwanjololo, Majaliwa; Okhimamhe, Appollonia; Kato, Edward; Crespo, Susana; Ndjeunga, Jupiter; Traore, Sibiry
Publisher:
International Food Policy Research Institute (IFPRI), September, 2011, IFPRI Discussion Paper 01126, 88 pages.
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Empirical evidence has shown that farmers can adapt to climate change by using sustainable land and water management (SLWM) practices that provide local mitigation benefits, reducing or offsetting the negative effects of climate change at the level of the plot, farm, or even landscape. However, adaptation to climate change using SLWM practices in sub-Saharan Africa (SSA) remains low. This study was conducted to examine the impact of government policies on adaptation to climate change.

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Potential Impact of Investments in Drought Tolerant Maize in Africa

Authored by:
La Rovere, Roberto; Kostandini, Genti; Abdoulaye, Tahirou; Dixon, John; Mwangi, Wilfred; Guo, Zhe; Banziger, Marianne
Publisher:
International Institute of Tropical Agriculture (IITA), 2010, 38 pages.
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The study evaluates the potential impacts of the Drought Tolerant Maize for Africa (DTMA) project run by CIMMYT and the International Institute for Tropical Agriculture (IITA) in 13 countries of eastern, southern and West Africa: Angola, Benin, Ethiopia, Kenya, Malawi, Mali, Mozambique, Nigeria, Tanzania, Uganda, ambia, and Zimbabwe and Ghana.

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Paving the Way for Development? The Impact of Transport Infrastructure on Agricultural Production and Poverty Reduction in the Democratic Republic of Congo

Authored by:
Ulimwengu, John; Funes, Jose; Headey, Derek; You, Liangzhi
Publisher:
International Food Policy Research Institute (IFPRI), December, 2009, IFPRI Discussion Paper 00944, 52 pages.
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Given its vast land resources and favorable water supply, the Democratic Republic of Congo’s (DRC’s) natural agricultural potential is immense.

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Torrents and Trickles: Irrigation Spending Needs in Africa; Summary

Authored by:
You, L.; Ringler, C.; Nelson, G.; Wood-Sichra, U.; Robertson, R.; Wood, S.; Zhe, G.; Zhu, T.; Sun, Y.
Publisher:
World Bank, September, 2009, 12 pages.
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Priorities for Realizing the Potential to Increase Agricultural Productivity and Growth in Western and Central Africa

Authored by:
Nin-Pratt, Alejandro; Johnson, Michael; Magalhaes, Eduardo; Diao, Xinshen; You, Liangzhi; Chamberlin, Jordan
Publisher:
International Food Policy Research Institute (IFPRI), August, 2009, IFPRI Discussion Paper 00876, 76 pages.
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We identify a set of development priorities for agriculture that cut across West Africa, at both the country and the regional level, to achieve economy-wide growth goals in the region.

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Ex Ante Analysis of the Benefits of Transgenic Drought Tolerance Research on Cereal Crops in Low-income Countries

Authored by:
Kostandini, Genti; Mills, Bradford F.; Omamo, Steven Were; Wood, Stanley
Publisher:
Agricultural Economics, July, 2009, Volume 40, Issue 4, 477-492.
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This article develops a framework to examine the ex ante benefits of transgenic research on drought in eight low-income countries, including the benefits to producers and consumers from farm income stabilization and the potential magnitude of private sector profits from intellectual property rights (IPRs).

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[Ethiopia] Agricultural Sample Survey 2008/2009 (2001 E.C.) (September - December 2008) Volume 1, Report on Area and Production of Crops (Private Peasant Holdings, Meher Season)

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The specific objectives of Meher Season Post Harvest Survey are to estimate the total
crop area, volume of crop production and yield of crops for Meher Season agriculture in

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