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Title	International Model for Policy Analysis of Agricultural Commodities and Trade (IMPACT) Model
Author	Batka, Miroslav Bhandary, Prapti Bryan, Elizabeth Cenacchi, Nicola De Pinto, Alessandro Enahoro, Dolapo Leroy, Laetitia Li, Man Magnan, Nicholas Mason-D’Croz, Daniel Msangi, Siwa Nelson, Gerald C. Ringler, Claudia Robertson, Richard D. Rosegrant, Mark W. Sulser, Timothy B. Thomas, Timothy S. Tokgoz, Simla Valmonte-Santos, Rowena You, Liangzhi Zhang, Wei Zhu, Tingju Kleinwechter, Ulrich
ORCID	http://orcid.org/0000-0003-0517-7473 Batka, Miroslav; http://orcid.org/0000-0001-7031-3537 Bhandary, Prapti; http://orcid.org/0000-0002-0906-222X Bryan, Elizabeth; http://orcid.org/0000-0003-1913-4263 Cenacchi, Nicola; http://orcid.org/0000-0003-0327-494X De Pinto, Alex; http://orcid.org/0000-0003-4296-4097 Li, Man; http://orcid.org/0000-0003-0673-2301 Mason-D'Croz, Daniel; http://orcid.org/0000-0002-5408-6909 Msangi, Siwa; http://orcid.org/0000-0002-8266-0488 Ringler, Claudia; http://orcid.org/0000-0001-5741-3867 Robertson, Richard; http://orcid.org/0000-0001-6371-6127 Rosegrant, Mark; http://orcid.org/0000-0001-7128-5283 Sulser, Timothy B.; http://orcid.org/0000-0002-7951-8157 Thomas, Tim; http://orcid.org/0000-0002-9358-0491 Tokgoz, Simla; http://orcid.org/0000-0002-2069-4551 Valmonte-Santos, Rowena; http://orcid.org/0000-0001-7930-8814 You, Liangzhi; http://orcid.org/0000-0002-2933-6275 Zhang, Wei; http://orcid.org/0000-0002-6882-3551 Zhu, Tingju;
Year	2012
Abstract	The IMPACT model is designed to examine alternative futures for global food supply, demand, trade, prices, and food security. The IMPACT model allows IFPRI to provide both fundamental, global baseline projections of agricultural commodity supply, demand, trade, prices and malnutrition outcomes along with cutting-edge research results on quickly evolving topics such as bioenergy, climate change, changing diet/food preferences, and many other themes. IMPACT covers 44 commodities, which account for virtually all of world food production and consumption, including all cereals, soybeans, roots and tubers, meats, milk, eggs, oils, meals, vegetables, fruits, sugar and sweeteners, and fish in a partial equilibrium framework. It is specified as a set of 115 country-level supply and demand equations where each country model is linked to the rest of the world through trade. The model is written in the General Algebraic Modeling System (GAMS) programming language. The solution of the system of equations is achieved using the Gauss–Seidel method algorithm. This procedure minimizes the sum of net trade at the international level and seeks a world market price for a commodity that satisfies market-clearing conditions.
Publisher	International Food Policy Research Institute (IFPRI)
Place of publication	Washington, D.C.
Language	English
Record Type	Knowledge product
Peer Reviewed - PR or Non-PR	PR
Subject - country location	NORTH AMERICA SOUTH AMERICA SOUTH EAST ASIA MIDDLE EAST EUROPE
Subject - keywords	International Model for Policy Analysis of Agricultural Commodities and Trade IMPACT Impact assessment Impact model Projections General Algebraic Modeling System (GAMS) Food supply Food demand Agriculture Investment malnutrition climate change plant production water supply livestock production children hunger demand resource management economic development prices nutrition malnutrition commodities trade food supply food security technological changes commodity markets
IFPRI Descriptors	IFPRI1 GRP38 HarvestChoice
IFPRI Division	EPTD
Access Rights	Open Access
Related Documents	2012 IMPACT Model: http://ebrary.ifpri.org/cdm/ref/collection/p15738coll2/id/127162 2008 IMPACT Model: http://ebrary.ifpri.org/cdm/ref/collection/p15738coll2/id/12735
Display Notes	The Impact Development Team: Current Contributors: Miroslav Batka, Prapti Bhandary, Elizabeth Bryan, Nicola Cenacchi, Alex de Pinto, Dolapo Enahoro, Laetitia Leroy, Man Li, Nicholas Magnan, Daniel Mason-D'Croz, Siwa Msangi, Gerald Nelson, Claudia Ringler, Richard Robertson, Sherman Robinson, Mark W. Rosegrant, Timothy B. Sulser, Timothy Thomas, Simla Tokgoz, Rowena Valmonte-Santos, Liangzhi You, Wei Zhang, Tingju Zhu, Ulrich Kleinwechter Past Contributors: Miroslav Batka, Prapti Bhandary, Elizabeth Bryan, Nicola Cenacchi, Alex de Pinto, Dolapo Enahoro, Laetitia Leroy, Man Li, Nicholas Magnan, Daniel Mason-D'Croz, Siwa Msangi, Gerald Nelson, Claudia Ringler, Richard Robertson, Sherman Robinson, Mark W. Rosegrant, Timothy B. Sulser, Timothy Thomas, Simla Tokgoz, Rowena Valmonte-Santos, Liangzhi You, Wei Zhang, Tingju Zhu, Ulrich Kleinwechter
IFPRI Web link	http://www.ifpri.org/book-751/ourwork/program/impact-model
IFPRI Publication Ranking	Not ranked
Requests	mailto:ifpri-library@cgiar.org
CONTENTdm file name	127444.url
Date cataloged	2012-11-07
Date modified	2016-07-06
OCLC number	861353119
CONTENTdm number	127233

International Model for Policy Analysis of Agricultural Commodities and Trade (IMPACT) Model

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