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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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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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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.
Topics: 
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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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Potential of Herbicide-Resistant Rice Technologies for Sub-Saharan Africa

Authored by:
Rodenburg, Jonne; Demont, Matty
Publisher:
AgBioForum, 2009, Volume 12, Issue 3 & 4,
Topics: 
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Weed-inflicted yield losses in rice equate to half the current rice imports in sub-Saharan Africa (SSA) and African rice farmers have a limited range of effective and affordable weed management technologies.

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[Ethiopia] Agricultural Sample Survey 2007/2008 (2000 E.C.) (September - December, 2007) Volume 3, Report on Farm Management Practices, (Private Peasant Holdings, Meher Season)

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The report comprises three parts. Part I contains the objectives of this annual
survey, Part II deals with coverage of the survey, sample design, field organization
and method of data collection and Part III includes summary of the results.

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Generating Plausible Crop Distribution and Performance Maps for Sub-Saharan Africa Using a Spatially Disaggregated Data Fusion and Optimization Approach

Authored by:
You, Liangzhi; Wood, Stanley; Wood-Sichra, Ulrike
Publisher:
International Food Policy Research Institute (IFPRI), October 2007, IFPRI Discussion Paper 00725, 56 pages.
Topics: 
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Agricultural production statistics reported at country or sub-national geopolitical scales are used in a wide range of economic analyses, and spatially explicit (geo-referenced) production data are increasingly needed to support improved approaches to the planning and implementation of agricultural development. However, it is extremely challenging to compile and maintain collections of sub-national crop production data, particularly for poorer regions of the world.

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[Ethiopia] Agricultural Sample Survey 2006/2007 (1999 E.C.) (September - December, 2006) Volume 3, Report on Farm Management Practices, (Private Peasant Holdings, Meher Season)

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As part of the 2006/07 (1999 E.C) Agricultural Sample Survey, data on fertilizer, improved seed, irrigation and pesticide applied area and volume of fertilizers and improved seeds used
within the private peasant holdings was collected, processed and summarized.

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