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Social and Behavioral Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

2009

Iowa State University

Physical Sciences and Mathematics

Economics Publications

Articles 1 - 4 of 4

Full-Text Articles in Social and Behavioral Sciences

Cancer-Risk Benefits Of Clean Fuel Technology And Policy: A Statistical Analysis, Paul Gallagher, William Lazarus, Hosein Shapouri, Roger Conway, James Duffield Dec 2009

Cancer-Risk Benefits Of Clean Fuel Technology And Policy: A Statistical Analysis, Paul Gallagher, William Lazarus, Hosein Shapouri, Roger Conway, James Duffield

Economics Publications

The hypothesis of this study is that there is a statistical relationship between the lung cancer mortality rate and the intensity of fuel consumption (measured in gallons/square mile) at a particular location. We estimate cross-section regressions of the mortality rate due to lung cancer against the intensity of fuel consumption using local data for the entire US, before the US Clean Air Act (CAA) in 1974 and after the most recent policy revisions in 2004. The cancer rate improvement estimate suggests that up to 10 lung cancer deaths per 100,000 residents are avoided in the largest urban areas ...


Biofuels: Potential Production Capacity, Effects On Grain And Livestock Sectors, And Implications For Food Prices And Consumers, Dermot J. Hayes, Bruce Babcock, Jacinto F. Fabiosa, Simla Tokgoz, Amani Elobeid, Tun-Hsiang E. Yu, Fengxia Dong, Chad Hart, Eddie Chavez, Suwen Pan, Miguel Carriquiry, Jerome R. Florian-Dumortier Aug 2009

Biofuels: Potential Production Capacity, Effects On Grain And Livestock Sectors, And Implications For Food Prices And Consumers, Dermot J. Hayes, Bruce Babcock, Jacinto F. Fabiosa, Simla Tokgoz, Amani Elobeid, Tun-Hsiang E. Yu, Fengxia Dong, Chad Hart, Eddie Chavez, Suwen Pan, Miguel Carriquiry, Jerome R. Florian-Dumortier

Economics Publications

We examine four scenarios for the evolution of the biofuel sector using a partial equilibrium model of the world agricultural sector. The model includes the new Renewable Fuels Standard in the 2007 energy act, the two-way relationship between fossil energy and biofuel markets, and a new trend toward corn oil extraction in ethanol plants. At one extreme, one scenario eliminates all support to the biofuel sector when the energy price is low, while the other extreme assumes no distribution bottleneck in ethanol demand growth when the energy price is high. Of the remaining two scenarios, one considers a pure market ...


Roles For Evolving Markets, Policies, And Technology Improvements In U.S. Corn Ethanol Industry Development, Paul W. Gallagher Jan 2009

Roles For Evolving Markets, Policies, And Technology Improvements In U.S. Corn Ethanol Industry Development, Paul W. Gallagher

Economics Publications

This article reviews changes in markets, technologies, and policies that affect corn ethanol profit - ability and industry expansion. Historically, the corn ethanol industry was stimulated by high petrofuel prices, successful corn and processing technology improvements, and government incentives, such as a blenders’ tax credit and mandated markets defined by the leaded fuel ban and reformulated fuel. Presently, the corn ethanol industry has expanded slightly beyond the point of a normal capital return, which is defined by limits on corn resource availability and ethanol marketing infrastructure. A renewable fuel standard, included in a recent energy law, may eventually define minimum consumption ...


Improving Sustainability Of The Corn-Ethanol Industry, Paul W. Gallagher, Hosein Shapouri Jan 2009

Improving Sustainability Of The Corn-Ethanol Industry, Paul W. Gallagher, Hosein Shapouri

Economics Publications

Two criteria based on characteristics of plant growth establish when bio-fuels can provide sustainable energy for society. The first criteria: enough solar energy stored during plant growth becomes available for man's use. Pimentel's early evaluation of the US ethanol industry calculated the ratio of BTUs in ethanol: BTUs from fossil energy of com and ethanol production at less than one. He concluded that ethanol is not sustainable energy, and questioned the industry's existence. Recent energy balance ratios that include adjustments for co-product feed and higher energy efficiency in corn/ethanol production suggest a moderate contribution from captured ...