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Monitoring Tylosin And Sulfamethazine In A Tile-Drained Agricultural Watershed Using Polar Organic Chemical Integrative Sampler (Pocis), Maurice T. Washingtion, Thomas Moorman, Michelle L. Soupir, Mack C. Shelley II, Amy J. Morrow 2018 Iowa State University

Monitoring Tylosin And Sulfamethazine In A Tile-Drained Agricultural Watershed Using Polar Organic Chemical Integrative Sampler (Pocis), Maurice T. Washingtion, Thomas Moorman, Michelle L. Soupir, Mack C. Shelley Ii, Amy J. Morrow

Agricultural and Biosystems Engineering Publications

This study evaluated the influence of temporal variation on the occurrence, fate, and transport of tylosin (TYL) and sulfamethazine (SMZ); antibiotics commonly used in swine production. Atrazine (ATZ) was used as a reference analyte to indicate the agricultural origin of the antibiotics. We also assessed the impact of season and hydrology on antibiotic concentrations. A reconnaissance study of the South Fork watershed of the Iowa River (SFIR), was conducted from 2013 to 2015. Tile drain effluent and surface water were monitored using polar organic integrative sampler (POCIS) technology. Approximately 169 animal feeding operations (AFOs) exist in SFIR, with 153 of ...


Who Bears The Economic Costs Of Environmental Regulations?, Don Fullerton, Erich Muehlegger 2017 University of Illinois at Urbana-Champaign

Who Bears The Economic Costs Of Environmental Regulations?, Don Fullerton, Erich Muehlegger

Don Fullerton

Public economics has a well-developed literature on tax incidence – the ultimate burdens from tax policy.  This literature is used here to describe not only the distributional effects of environmental taxes or subsidies but also the likely incidence of non-tax regulations, energy efficiency standards, or other environmental mandates. Recent papers find that mandates can be more regressive than carbon taxes. We also describe how the distributional effects of such policies can be altered by various market conditions such as limited factor mobility, trade exposure, evasion, corruption, or imperfect competition. Finally, we review data on carbon-intensity of production and exports around the ...


Multiple Pollutants, Co-Benefits, And Suboptimal Environmental Policies, Don Fullerton, Daniel Karney 2017 University of Illinois at Urbana-Champaign

Multiple Pollutants, Co-Benefits, And Suboptimal Environmental Policies, Don Fullerton, Daniel Karney

Don Fullerton

In our analytical general equilibrium model, polluting inputs can be substitutes or complements. We study a tax increase on one pollutant where the other faces a tax or permit policy. Our solutions highlight key parameters and welfare effects with gains from abatement plus positive or negative co-benefits from other pollutants in the covered and uncovered sectors. We demonstrate several ways taxes and permits differ. First, the change in taxed pollutant depends on whether the other pollutant faces a tax or permit policy. Also, only with a tax on the other pollutant can a co-benefit arise. The sign of co-benefits depends ...


Benefits And Obstacles To Purchasing Food From Local Growers And Producers, Mary B. Gregoire, Catherine H. Strohbehn 2017 Iowa State University

Benefits And Obstacles To Purchasing Food From Local Growers And Producers, Mary B. Gregoire, Catherine H. Strohbehn

Catherine Strohbehn

Oftentimes, those who are responsible for purchasing food for school foodservice programs have a variety of vendors from whom they choose to purchase. One buying option that is receiving increased support from the U.S. Department of Agriculture (USDA) is the purchase of foods from local growers (those who grow food items on their farm and sell directly to consumers) and producers (those who produce a food item, such as pasta or ground beef, from locally grown or raised foods). Data for this study were collected from individuals responsible for managing school foodservice operations in four Midwestern states to determine ...


Innovations In School Food Purchasing, Catherine H. Strohbehn, Mary B. Gregorie 2017 Iowa State University

Innovations In School Food Purchasing, Catherine H. Strohbehn, Mary B. Gregorie

Catherine Strohbehn

There is much local interest in and government support for efforts to develop stronger links between schools and local growers and producers. Several successful programs have been developed that provide models for school foodservice direclors who are interested in this effort. Benefits and challenges do exist in Ihe developmenl of these new markets, both from the perspective of the school foodservice projessional and the producm. Discussions of the benefits, obstacles, and pilot, projects are included in this report.


Impacts Of The Food Safety Modernization Act On On-Farm Food Safety Practices For Small And Sustainable Produce Growers, Aaron Adalja, Erik Lichtenberg 2017 Cornell University School of Hotel Administration

Impacts Of The Food Safety Modernization Act On On-Farm Food Safety Practices For Small And Sustainable Produce Growers, Aaron Adalja, Erik Lichtenberg

Aaron Adalja

We use data from a national survey of fruit and vegetable growers to examine the current prevalence and cost burden of food safety practices required in the proposed Produce Rule implementing the Food Safety Modernization Act. In particular, we analyze the influence of farm size and farming practices on the probability of adopting food safety measures that would be required by the Produce Rule; and we analyze how the costs of using those food safety practices vary by farm size and farm practices. Majorities of our respondents currently employ most of the food safety practices that would be required under ...


An Examination Of Consumer Willingness To Pay For Local Products, Aaron Adalja, James Hanson, Charles Towe, Elina Tselepidakis 2017 Cornell University School of Hotel Administration

An Examination Of Consumer Willingness To Pay For Local Products, Aaron Adalja, James Hanson, Charles Towe, Elina Tselepidakis

Aaron Adalja

We use data from hypothetical and nonhypothetical choice-based conjoint analysis to estimate willingness to pay for local food products. The survey was administered to three groups: consumers from a buying club with experience with local and grass-fed production markets, a random sample of Maryland residents, and shoppers at a nonspecialty Maryland supermarket. We find that random-sample and supermarket shoppers are willing to pay a premium for local products but view local and grass-fed production as substitutes. Conversely, buying-club members are less willing to pay for local production than the other groups but do not confllate local and grass-fed production.


Adoption And Coexistence Of Ge, Conventional Non-Ge, And Organic Crops, Aaron Adalja, Catherine Greene, James Hanson, Robert Ebel, Michael Barron 2017 Cornell University School of Hotel Administration

Adoption And Coexistence Of Ge, Conventional Non-Ge, And Organic Crops, Aaron Adalja, Catherine Greene, James Hanson, Robert Ebel, Michael Barron

Aaron Adalja

The adoption of genetically engineered (GE) crop varieties by U.S. farmers is widespread for major crops—94 percent of planted acres for soybeans, and 88 percent for corn in 2012 (USDA-NASS 2012).

The potential exists for GE crop production to impose costs on organic and conventional non-GE production via unintended presence of GE material along the supply chain through:

• Contamination of seed stock

• Accidental cross-pollination

• Accidental co-mingling during planting, harvesting, handling, and storing of crops (Bullock and Desquilbet 2002).

Maintaining the integrity of GE-differentiated product markets relies on segregation protocols such as:

• Hybrid selection and seed purity testing

• Physical ...


Demographic Influences On Nonadoption Of Calf Management And Marketing Practices For Cow-Calf Operations, Stephanie Schumacher, Derrell S. Peel, Kellie Curry Raper 2017 First United Bank, Amarillo

Demographic Influences On Nonadoption Of Calf Management And Marketing Practices For Cow-Calf Operations, Stephanie Schumacher, Derrell S. Peel, Kellie Curry Raper

Journal of Applied Farm Economics

Though research indicates that many calf management and marketing practices are available to add value for the cow-calf producer, a high percentage of producers are still nonadopters of such practices. Little information identifies nonadopters in the beef cattle industry, limiting efforts to provide educational support. This study uses a binomial logit model and primary survey data to examine the demographic influence on producers’ nonadoption of commonly recommended value-added management and marketing practices specific to feeder calves in the cow-calf segment.


Short-Term Asset And Debt Choice And U.S. Corn Farm Liquidity, Sarah Stutzman, Todd Hubbs 2017 U.S. Bureau of Economic Analysis

Short-Term Asset And Debt Choice And U.S. Corn Farm Liquidity, Sarah Stutzman, Todd Hubbs

Journal of Applied Farm Economics

The liquidity positions of U.S. corn farms over the period 2002–2013 is examined using Agricultural Resource Management Survey (ARMS) data and calculating the average annual working capital to gross revenue (WC/GR) ratio for farms within the 25th percentile, median, and 75th percentile. The relationship between liquidity and land ownership, farm size, and the composition and level of short-term farm asset and debts by category are compared across farms within the 25th, 25th–75th, and 75th WC/GR ratio percentile. We find that, on average, farms in the 75th WC/GR ratio percentile owned a greater portion of ...


Financial Vulnerability Of Midwest Grain Farms: Implications Of Price, Yield, And Cost Shocks, Shasha Li, Michael Boehlje 2017 Industrial and Commercial Bank of China

Financial Vulnerability Of Midwest Grain Farms: Implications Of Price, Yield, And Cost Shocks, Shasha Li, Michael Boehlje

Journal of Applied Farm Economics

Recent years have witnessed increasing volatility in crop prices and yields, fertilizer prices, and farm asset values. In this study, the financial performance of illustrative Midwest grain farms with different scales, tenure status, and capital structures was examined under the shocks of volatile crop prices, yields, fertilizer prices, farmland value, and cash rent. Illustrative farms of 550, 1,200, and 2,500 acres were constructed reflecting the production activity for these farms with three different farmland ownership structures (15%, 50%, and 85% of land owned) and two capital structures measured by debt-to- asset ratio (25% and 50%). Absolute measures and ...


Haitian Sun And Peruvian Ruins: Service-Learning In International Development, Paige Rudin 2017 Purdue University

Haitian Sun And Peruvian Ruins: Service-Learning In International Development, Paige Rudin

Purdue Journal of Service-Learning and International Engagement

Development issues in growing nations can be seen and discussed in service-learning programs on Purdue’s campus. Two international experiences in Haiti and Peru reveal a need for development strategies that can be universally applied in service-learning settings. Traveling with graduate students from Lima, Peru, to study animal connection in Peruvian society and teaching Haitian university students the basics of water quality and testing allow the exchange of ideas between cultures and profound learning for both parties. Connections like these change mindsets and inspire curiosity, thus strengthening human capacity. Challenges and barriers like integrating quantitative and qualitative data from community ...


Answering Food Insecurity: Serving The Community With Food And Knowledge Using Technology, Courtney Simpson 2017 Purdue University

Answering Food Insecurity: Serving The Community With Food And Knowledge Using Technology, Courtney Simpson

Purdue Journal of Service-Learning and International Engagement

The courses of Tech120, CGT110, and ENGT 180/181 and Red Gold at Purdue collaborated to design a robot that would plant and water a garden for a local community charter school. The students centered the project on the users’ needs for fresh food, nutrition education, and early exposure to STEM for children. The school, Anderson Preparatory Academy (APA), is comprised of many children who come from low-income families and are in the free or reduced lunch program. Inspired from “Farm Bot,” a similar system that allows for almost hands-free gardening, the “Boiler Bot” is designed to be scalable so ...


Water Supply In Developing Countries: Student Experiences In The Dominican Republic, Albert Alwang, Margaret Busse, Audrey Caprio, Marieke Fenton, Jason Hawes, Andrew Kanach, Autumn McElfresh-Sutton 2017 Purdue University

Water Supply In Developing Countries: Student Experiences In The Dominican Republic, Albert Alwang, Margaret Busse, Audrey Caprio, Marieke Fenton, Jason Hawes, Andrew Kanach, Autumn Mcelfresh-Sutton

Purdue Journal of Service-Learning and International Engagement

In 2010, the United Nations established access to safe drinking water as a basic human right; however, many areas around the globe still lack access. The interdisciplinary service-learning course “Water Supply in Developing Countries” was established at Purdue in 2012 to address the complex issue of water insecurity around the world. Over the past five years, the course has produced teams involving students from nursing, engineering, agricultural economics, biology, and food science working together to develop sustainable, community-scale drinking water treatment systems. In partnership with Aqua Clara International, the student team in 2017 established a drinking water treatment system at ...


Grand Staircase Escalante Economic Effects Data, Paul M. Jakus, Sherzod B. Akhundjanov 2017 Utah State University

Grand Staircase Escalante Economic Effects Data, Paul M. Jakus, Sherzod B. Akhundjanov

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The designation of landscape-scale national monuments has generated intense debate as to whether their regional economic effects are positive or negative. National monuments can restrict land uses, thus favoring economic development based on the low-wage tourism industry relative to higher-wage extractive industries. Utah’s Grand Staircase-Escalante National Monument has been managed for landscape-scale conservation whilst protecting existing valid uses. We assess post-designation trends in the ranching, mining, and tourism industries, after which pre- and post-designation paths of per capita income are examined using difference-in-differences and synthetic control methods. We conclude that monument designation had no effect on regional per capita ...


The Impact Of Price-Induced Hedging Behavior On Commodity Market Volatility, Nathan S. Kauffman, Dermot J. Hayes, Sergio H. Lence 2017 Iowa State University

The Impact Of Price-Induced Hedging Behavior On Commodity Market Volatility, Nathan S. Kauffman, Dermot J. Hayes, Sergio H. Lence

Sergio H. Lence

The utility maximization problem of a grain producer is formulated and solved numerically under prospect theory as an alternative to expected utility theory. Conventional theory posits that the optimal hedging position of a producer should not increase solely due to increases in the level of futures prices. However, a strong degree of positive correlation is apparent in the data. Our results show that with prospect theory serving as the underlying behavioral framework, the optimal hedge of a producer is affected by changes in futures price levels. The implications of this price-induced hedging behavior on spot prices and volatility are subsequently ...


¡El Agua Es Nuestra! Pensar Desde Afuera Del Discurso De ‘Público Vs Privado’ / The Water Is Ours! Thinking From Outside The 'Public Vs. Private' Speech, Julius Figueroa 2017 SIT Study Abroad

¡El Agua Es Nuestra! Pensar Desde Afuera Del Discurso De ‘Público Vs Privado’ / The Water Is Ours! Thinking From Outside The 'Public Vs. Private' Speech, Julius Figueroa

Independent Study Project (ISP) Collection

Cualquier persona que haya vivido en Cochabamba por más de unos pocos años puede decir que la ciudad tiene una larga historia de problemas de agua. La respuesta del Estado a estos problemas ha sido variada y, a veces, problemática. En el año 1999, el gobierno de Bolivia firmó un contrato con una empresa transnacional llamada Aguas del Tunari en una tentativa de privatizar el suministro municipal del agua de Cochabamba. Después de un drástico aumento en los precios del agua, protestas y manifestaciones estallaron por toda la ciudad de Cochabamba. La gente de Cochabamba finalmente logró presionar al gobierno ...


The Urban Farmer, Singapore Management University 2017 Singapore Management University

The Urban Farmer, Singapore Management University

Perspectives@SMU

Bjorn Low left a high-flying advertising job to reshape the urban, agricultural, and social enterprise landscapes in his native Singapore


From Fossil Fuels To Renewables: The Role Of Electricity Storage, Itziar Lazkano, Linda Nostbakken, Martino Pelli 2017 University of Wisconsin - Milwaukee

From Fossil Fuels To Renewables: The Role Of Electricity Storage, Itziar Lazkano, Linda Nostbakken, Martino Pelli

Martino Pelli

Electricity storage represents a solution to curb emissions by enabling more use of intermittent renewable energy. Our goal is to empirically analyze the determinants of innovation in electricity storage and its role in fostering technological innovations in renewable and conventional electricity generation. Using a global firm-level data set of electricity patents from 1963 to 2011, we find that better electricity storage promotes innovation not only in renewable energy but also in conventional technologies. Specifically, our estimates show that an additional storage patent increases the probability to apply for patents in renewable energy and efficiency-improving fossil fuel technologies two years from ...


The Economics Of European Eel Management, Hanna Nilsson, Jesper Stage 2017 University of Gothenburg

The Economics Of European Eel Management, Hanna Nilsson, Jesper Stage

Journal of Ocean and Coastal Economics

The European eel stock is endangered. The European Union has, therefore, introduced strict policies to try to reverse the eel’s decline and reduce the threats to its survival. However, the European Union’s eel management policy has been implemented on a ‘one-size-fits-all’ basis, where all the affected countries have been given nearly identical targets, regardless of either the individual country’s costs for reducing damages to eels or its importance for the overall eel stock. In this paper, we draw on data from the different national eel management plans as well as from independent studies to compare the cost ...


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