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Right-Sizing Stem-Rust Research

Authored by:
Pardey, P.G.; Beddow, J.M.; Kriticos, D.J.; Hurley, T.M.; Park, R.F.; Duveiller, E.; Sutherst, R.W.; Burdon, J.J.; Hodson, D.
Publisher:
Science, April, 2013, Volume 340, Issue 6129, 147-148.
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Stem rust caused by Puccinia graminis f. sp.

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Measuring the Global Occurrence and Probabilistic Consequences of Wheat Stem Rust

Authored by:
Beddow, Jason M.; Hurley, Terry M.; Kriticos, Darren J.; Pardey, Philip G.
Publisher:
HarvestChoice, April 10, 2013, HarvestChoice Technical Note, 24 pages.
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This technical note describes the methods and data sources used to generate the results

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Agricultural Innovation: The United States in a Changing Global Reality

Authored by:
Pardey, Philip G.; Beddow, Jason M.
Publisher:
The Chicago Council on Global Affairs, April 2013, 52 pages.
Topics: 
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This report looks at the processes of agricultural innovation and the role of R&D in increasing agricultural productivity.

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Public Food and Agricultural Research in the United States: The Rise and Decline of Public Investments, and Policies for Renewal

Authored by:
Pardey, Philip G.; Alston, Julian M.; Chan-Kang, Connie
Publisher:
AGree, April 2013, 46 pages.
Topics: 
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The report shows how public funding for agricultural research and development (R&D) has declined markedly in recent decades.

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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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CLIMEX Modelling of the Potential Global Distribution of the Citrus Black Spot Disease Caused by Guignardia Citricarpa and the Risk Posed to Europe

Authored by:
Yonow, Tania; Hattingh, Vaughan; De Villiers, Marelize
Publisher:
Crop Protection, February 2013, Volume 44, 18-28.
Topics: 
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Download: 
application/zip iconsvyMaps_poor_r12.12.zip

Sub-national Poverty and Extreme Poverty Prevalence

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Publisher: 
HarvestChoice/International Food Policy Research Institute (IFPRI)

Estimated poverty measures at '05 PPP $1.25/day and $2/day international poverty lines. These measures are now available for 24 countries in sub-Saharan Africa at the province or district level.

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Comment on “Climatic Niche Shifts Are Rare Among Terrestrial Plant Invaders”

Authored by:
Webber, Burce L.; Le Maitre, David C.; Kriticos, Darren J.
Publisher:
Science, October, 2012, Volume 338, Issue 6104, 193.
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Petitpierre et al. (Reports, 16 March 2012, p. 1344) conclude that niche shifts are rare for terrestrial plant invaders and that this justifies the use of correlative modeling to project species geographic ranges for biological invasions and climate change. We draw attention to the limitations of their conceptual assumptions and the importance of niche shifts excluded from their analyses.

A Long-Run View of South African Agricultural Production and Productivity

Authored by:
Liebenberg, Frikke; Pardey, Philip G.
Publisher:
African Journal of Agricultural and Resource Economics, October 2012, Volume 7, Issue 1, 14-38.
Topics: 
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Production and productivity developments in South Africa have regional consequences:
South Africa’s agricultural economy accounted for 43.1% of the agricultural GDP of

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