Social and Behavioral Sciences Commons^™

Understanding Consumer Attitudes Towards Antimicrobial Risk Reducing Practices, Sabrina Gulab

Department of Agricultural Economics: Dissertations, Theses, and Student Research

The emergence and spread of antimicrobial resistance is a natural evolutionary reaction to antimicrobial exposure. However, the misuse and overuse of antimicrobial drugs in human medicine and in agriculture are speeding up the process. Antimicrobials have been used in food-producing animals for therapeutic purposes as well as to promote growth by applying low concentrations in animal feed. Antimicrobial resistant pathogens can enter the food chain through food containing residues of antibiotic-resistant bacteria and cause infections in humans. In the United States, millions of people are infected every year with antimicrobial resistant bacterial diseases causing approximately 23,000 deaths (CDC 2013). This …

Boundary Spanners And Trust Development Between Stakeholders In Integrated Water Resource Management: A Mixed Methods Study, Jodi L. Delozier

School of Natural Resources: Dissertations, Theses, and Student Research

Natural resource issues are inherently complex, even more so are those that involve the management of water. Because watersheds tend to cross multiple jurisdictional and geographical boundaries, a diverse set of stakeholders are needed to develop appropriate and sustainable management policy. This research sheds light on the importance of boundary spanners assisting in the development of trust between stakeholders in integrated water resource management (IWRM). Previous literature has explored the advantages to boundary spanning leadership in business practice, emergency management, university and community management as well as fish and wildlife management, but has failed to address the area of integrated …

Irrigation Management, Environment, And Profits: Who Wins?, Emily O'Donnell

Department of Agricultural Economics: Dissertations, Theses, and Student Research

The impact of irrigation technology on farmers’ management strategies and resulting environmental benefits depends upon agronomic properties and market forces. We evaluate the role of deficit irrigation using soil moisture probe technology on corn yield and evapotranspiration, which is a measure of water use efficiency. Evapotranspiration represents the water that transits through the plant during planting to harvest (transpiration) and the evaporation from the soil into the environment, or the displaced water in the production process. We develop yield and evapotranspiration response functions to inform a constrained profit maximization model used to identify the optimal irrigation level across a variety …

Using Regression Analysis To Determine Land Cover Impacts On Groundwater Levels In The High Plains, Dylan T. Riley

Department of Agricultural Economics: Dissertations, Theses, and Student Research

Many parts of the High Plains region are facing declining aquifer levels, which threatens the long-term viability of irrigated agriculture. Furthermore, some areas of the High Plains region, like the Republican River Basin in Nebraska, need to keep groundwater levels high enough in the short-term to ensure that hydrologically connected rivers have enough streamflow to fulfill surface water obligations, such as Nebraska's interstate river compact with Colorado and Kansas. To better manage groundwater, it is important to understand the unintended effects of policies that may not be aimed at groundwater conservation, such as the USDA- Conservation Reserve Program (USDA-CRP). The …

Estimating Adaptation To Climate Change In Groundwater Irrigation, James Keeler

Department of Agricultural Economics: Dissertations, Theses, and Student Research

Understanding the adaptive capacity of irrigated agriculture, including to what extent producers adjust irrigation choices along the intensive and extensive margins, is vital to the development of accurate and holistic estimates of the impacts of climate change on agricultural production and the sustainability of water-related ecosystem services. This thesis proposes and implements a natural experiment using statistical matching methods to estimate how producers adjust groundwater extraction, irrigated crop acreage, and irrigation technology in response to long-term changes in precipitation and evapotranspiration. Results from groundwater irrigated fields in Kansas suggest that intensive and extensive margin water use adaptations are generally limited …

Testing Global Dietary Convergence, Sri Noor Cholidah

Department of Agricultural Economics: Dissertations, Theses, and Student Research

Historical evidence shows that compared to Western countries, where the nutrition transition from a diet heavy in starchy staples to the modern Western diet took more than two centuries, the nutrition transition in developing countries towards Western-type diets has taken only a few decades, suggesting a trend towards global dietary convergence. This thesis explores the extent of such convergence by measuring βconvergence and σ-convergence of diets of 152 countries using FAO data on total calorie intake and calories by source from 1961-2009. Results for β-convergence show that a) countries who started in 1961 with lower calorie intake, in total or …

How Do Restaurant Menu Calorie Labeling Requirements And Exercise Impact Consumer Food Decision Making?, Nigina Rakhmatullaeva

Department of Agricultural Economics: Dissertations, Theses, and Student Research

The percentage of the U.S. population that is obese has increased markedly over the past fifty years. Obesity is driven in part by imbalances in energy consumption and expenditures. There are two main behavioral factors that influence that balance: food consumption and exercise. In this thesis, I report the results of two experiments that encompass both food choice and exercise.

The consumption of food prepared away from home is growing rapidly. Since individuals do not control the ingredients in foods prepared away from home, these foods are frequently less healthy than home-cooked foods. The role of calorie labeling for foods …

Effects Of China’S Trade Policies On The U.S. Distiller’S Dried Grains, Vanessa De Oliveira

Department of Agricultural Economics: Dissertations, Theses, and Student Research

Domestic and export demand for distillers’ dried grains (DDG) has increased since the early 2000s. DDG have become an important component of livestock feed given its nutritional value and competitive price. Over the last decade, China has become one of the major export destinations for U.S. DDG. However, there have been recent changes in trade policies in China. In this thesis, we develop an inverse demand equation to analyze the impact of China’s policies on U.S. DDG prices. The model contributes to the literature by incorporating domestic and international demand through which exogenous shocks, such as China’s trade barriers, may …

Effects On Producers Of The Transition To Revenue-Based Federal Crop Insurance Programs, Evan Wiese

Honors Theses

Prior to the passage of each farm bill, there is much debate regarding the programs contained within it. One of these programs is federal crop insurance, which underwent a major shift in the mid-1990’s with the introduction of revenue-based crop insurance rather than yield-based. Revenue-based programs provide insurance of a certain revenue level, rather than a certain yield level, which contributed to their popularity among producers. These revenue-based programs have become a key component of federal crop insurance. From 2014 to 2018, the costs of federal crop insurance were approximately $41 billion, much of this a result of subsidized insurance …

An Application Of Economics & Environmental Planning: The Impacts Of Variable Rate Irrigation Technology On Net Farm Income, Hannah Jones, Zhenghong Tang, Karina Schoengold, Yunwoo Nam, Dana Varner

Community and Regional Planning Program: Professional Projects

Restoring playa wetlands back into predominantly agricultural landscapes has been a pressing issue for decades. The Nebraska Rainwater Basin Joint Venture (RWBJV) and its partners represent a wide variety of private and public groups who are offering solutions to this problem, while helping farmers maximize net farm income. The University of Nebraska-Lincoln partnered with the RWBJV on a project to determine how Variable Rate Irrigation (VRI) technology would impact the profitability of farm management operations, while allowing the preservation of adjacent wetland areas. This study conducted an economic analysis that compared net farm income for producers that had participated in …

Statistical Analysis Of The Adoption Of Conservation Practices In Midwest And Great Plains Agriculture, Regan Gilmore, Karina Schoengold

UCARE Research Products

Improving conservation in conventional agriculture is crucial for the sustainability of agricultural economies. The aim of this project is to identify factors correlated with agricultural producers adopting conservation practices on their land.

Producers tend to choose their tillage and cropping systems based on soil management and yield/productivity concerns. Reasons and concerns for using no-till vary by state. For example, producers in Iowa choosing their tillage system based on yield/productivity concerns are 9.8% less likely to use no-till, while producers in South Dakota with the same concerns are 21.5% more likely to use no-till.

A Naturalist’S Guide To The Great Plains, Paul A. Johnsgard

Zea E-Books Collection

This book documents nearly 500 US and Canadian locations where wildlife refuges, nature preserves, and similar properties protect natural sites that lie within the North American Great Plains, from Canada’s Prairie Provinces to the Texas-Mexico border. Information on site location, size, biological diversity, and the presence of especially rare or interesting flora and fauna are mentioned, as well as driving directions, mailing addresses, and phone numbers or internet addresses, as available. US federal sites include 11 national grasslands, 13 national parks, 16 national monuments, and more than 70 national wildlife refuges. State properties include nearly 100 state parks and wildlife …

Sweet Sorghum As Feedstock In Great Plains Corn Ethanol Plants: The Role Of Biofuel Policy, Richard Perrin, Lilyan E. Fulginiti, Subir Bairagi, Ismail Dweikat

Department of Agricultural Economics: Faculty Publications

This research examines whether sweet sorghum, a crop considered more drought-tolerant and suitable for semi-arid areas than corn, could result in an economically viable sweet sorghum ethanol pathway in the Great Plains. We find that that if the D5–D6 RIN price spread exceeds the $0.35/gal recently experienced, the benefits of the pathway would be equivalent to about $90/acre of sweet sorghum, or $0.38/gal of ethanol. Because of sparse cultivation potential, only four the six existing plants in the Nebraska–Colorado High Plains area might expect transportation costs to be low enough for economic feasibility.

Input Use Under Crop Insurance: The Role Of Actual Production History, Taro Mieno, Cory Walters, Lilyan E. Fulginiti

Department of Agricultural Economics: Faculty Publications

The impact of crop insurance on changes in input use has attracted much attention by economists. While there are a number of studies on this topic, they frame moral hazard in inputs use in a static model. However, when agricultural producers are forward-looking, they would make input allocation decisions realizing that their decisions would affect their future actual production history. This, in turn, affects the probability and size of future indemnity payments. Thus, moral hazard should be framed in a dynamic input use decision model. We first show theoretically that under certain feasible conditions, a static analysis always results in …

Value Of Arrival Metaphylaxis In U.S. Cattle Industry, Elliott James Dennis, Ted C. Schroeder, David G. Renter, Dustin L. Pendell

Department of Agricultural Economics: Faculty Publications

Although several studies have estimated economic impacts of antimicrobials for growth promotion, little is known about economic impacts of the common animal health management strategy known as metaphylaxis: administering antimicrobials to groups of animals to prevent disease. This article develops a new framework to map animal disease to producer profitability and determine societal economic impacts surrounding metaphylactic use of antimicrobials in beef cattle production. Results indicate the direct net return value of metaphylaxis to the U.S. fed cattle industry is at least $532 million. Beef producer surplus losses of $1.8 billion would be associated with eliminating metaphylaxis.