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Full-Text Articles in Social and Behavioral Sciences

Sensitivity Of Carbon Emission Estimates From Indirect Land-Use Change, Jerome R. F. Dumortier, Dermot J. Hayes, Miguel Carriquiry, Fengxia Dong, Xiaodong Du, Amani E. Elobeid, Jacinto F. Fabiosa, Simla Tokgoz Jul 2009

Sensitivity Of Carbon Emission Estimates From Indirect Land-Use Change, Jerome R. F. Dumortier, Dermot J. Hayes, Miguel Carriquiry, Fengxia Dong, Xiaodong Du, Amani E. Elobeid, Jacinto F. Fabiosa, Simla Tokgoz

CARD Working Papers

We analyze the sensitivity of greenhouse gas (GHG) emissions from land-use change to modifications in assumptions concerning crop area, yield, and deforestation. For this purpose, we run a modified version of the Center for Agricultural and Rural Development (CARD) Agricultural Outlook Model, which was used previously to assess the impacts of energy price increases and biofuel policy changes on land conversion. To calculate the GHG implications of agricultural activity, we use GreenAgSiM, a model developed to evaluate emissions from land conversion and agricultural production. Both models are applied to scenarios that lead to higher US ethanol production. The results are ...


Biofuels Policies And Welfare: Is The Stick Of Mandates Better Than The Carrot Of Subsidies?, Harvey E. Lapan, Giancarlo Moschini Jun 2009

Biofuels Policies And Welfare: Is The Stick Of Mandates Better Than The Carrot Of Subsidies?, Harvey E. Lapan, Giancarlo Moschini

Economics Working Papers (2002–2016)

Significant government support for biofuels has led to rapid growth in U.S. ethanol production and research to develop more advanced biofuels. In this paper we construct a general equilibrium, open economy model that captures the rationale typically invoked to justify government intervention in this setting: to alleviate the environmental impact of energy consumption and to decrease U.S. energy dependence on foreign sources. The model is used to study both the positive and normative implications of alternative policy instruments, including the subsidies and mandates specified by the 2007 Energy Independence and Security Act. From a positive perspective, we find ...


Towards An Integrated Global Agricultural Greenhouse Gas Model: Greenhouse Gases From Agriculture Simulation Model (Greenagsim), Jerome R. F. Dumortier, Dermot J. Hayes May 2009

Towards An Integrated Global Agricultural Greenhouse Gas Model: Greenhouse Gases From Agriculture Simulation Model (Greenagsim), Jerome R. F. Dumortier, Dermot J. Hayes

CARD Working Papers

The Greenhouse Gases from Agriculture Simulation Model (GreenAgSiM) presented in this paper aims to quantify emissions from agricultural activity on a global scale. The model takes emissions into account that are directly attributable to agricultural production, such as enteric fermentation (methane), manure management (methane and nitrous oxide), and agricultural soil management (nitrous oxide). Furthermore, carbon stock differences from land-use change (carbon dioxide) induced by agriculture are included in the model. The model will provide policy makers with information about the greenhouse gas implications of policy changes.