Social and Behavioral Sciences Commons^™

Interdisciplinary Design Studio: Programming Document Visioning For A Robotic Demonstration, Research, And Engagement Dairy, Steve(N) Hardy, Nate Bicak, Sarah Alduaylij, Noor Al-Maamari, Devyn Beekman, Kelsey Belgum, Lauren Chubb, Nicholas Forte, Mitchell Hill, Joshua Holstein, Dylan Lambe, Phuong Le, Mia Leriger, Elizabeth Loftus, Josh Lorenzen, Megan Lovci, Alex Martino, Zade Miller, Hannah Morgan, Annabelle Nichols, Collin Shearman, Rebecca Sowl, Nalin Theplikhith, Angela Vu, Shaylee Wagner, Ethan Watermeier, Trever Zelenka

Student Creative Activity, Architecture Program

The 2022 COLLABORATE Design Studio brought together students from various disciplines to address a complex, real-world project which required collaborative input from different perspectives. The studio worked to advance the co-creation of knowledge between external stakeholders, students, and instructors. The course was co-taught by faculty from different disciplines, and areas of expertise. During the semester, Nate Bicak and Steven Hardy worked with students from Architecture and Interior Design in collaboration with students in Dr. Tami Brown-Brandl’s students in Biological Systems Engineering and Animal Science to explore the values, spatial qualities, and area requirements of a Robotic Demonstration, Research, and Engagement …

Importance Of Good Communications For Generational Ag Business Transfers, Allan Vyhnalek

Cornhusker Economics

Adapted from Right Risk, volume 10, Issue 10, October 2022.

Effective communication within a farm or ranch family, especially when multiple generations are operating and managing the business, is the underpinning of all other decisions made in a family business. It is critical that farm and ranch families identify areas of contention and develop communication skills that will allow them to negotiate satisfying outcomes. This may involve basic skills training, including communication, problem solving, and decision making.

Patterns Of Population Structure And Introgression Among Recently Differentiated Drosophila Melanogaster Populations, Jenn M. Coughlan, Andrius J. Dagilis, Antonio Serrato-Capuchina, Hope Elias, David Peede, Kristin Isbell, Dean M. Castillo, Brandon S. Cooper, Daniel R. Matute

Nebraska Extension: Faculty and Staff Publications

Despite a century of genetic analysis, the evolutionary processes that have generated the patterns of exceptional genetic and phenotypic variation in the model organism Drosophila melanogaster remains poorly understood. In particular, how genetic variation is partitioned within its putative ancestral range in Southern Africa remains unresolved. Here, we study patterns of population genetic structure, admixture, and the spatial structuring of candidate incompatibility alleles across a global sample, including 223 new accessions, predominantly from remote regions in Southern Africa. We identify nine major ancestries, six that primarily occur in Africa and one that has not been previously described. We find evidence …

New Plant Engineering Techniques, R&D Investment And International Trade, Stéphan Marette, Anne-Célia Disdier, Anastasia Bodnar, John C. Beghin

Department of Agricultural Economics: Faculty Publications

New plant engineering techniques (NPETs) may significantly improve both production and quality of foods. Some consumers and regulators around the world might be reluctant to accept such products and the global market penetration of these products may remain low. We develop a parsimonious economic model for R&D investment in food innovations to identify conditions under which NPET technology emerges in the context of international trade. The framework integrates consumers' willingness to pay (WTP) for the new food, the uncertainty of R&D processes, the associated regulatory cost of approval, and the competition between domestic and foreign products. With generic applicability, the …

Perceptions Of The Economy And Employment In Nonmetropolitan Nebraska: 2022 Nebraska Rural Poll Results, Rebecca J. Vogt, Heather Akin, Cheryl A. Burkhart-Kriesel, Bradley Lubben, L. J. Mcelravy, Timothy L. Meyer, Steven A. Schulz, Amanda Tupper

Nebraska Rural Poll

Most rural Nebraskans believe most of the listed economic items will become worse or much worse over the next 12 months when asked in May and June. Almost nine in ten think the following will become worse: inflation, gasoline or diesel fuel prices, grocery prices, and interest rates. In fact, at least four in ten rural Nebraskans believe the following items will become much worse in the next 12 months: gasoline or diesel fuel prices, inflation, grocery prices, and healthcare costs. The two items that had less than one-half believing they would become worse or much worse during the next …

The Role Of Intertemporal Preferences, Active Consideration Of Health Outcomes, And Simple Health Prompts On The Nutritional Quality Of Food Choices, Olivier Tuyizere

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

This thesis consists of three chapters. The first chapter introduces the thesis by highlighting a brief review of intertemporal preferences, active consideration of health outcomes, and health prompts during food choices. The introduction paves the way for the following two chapters, which are related, but stand-alone papers.

In the second chapter, we explore a novel question: how does actively considering health outcomes (both current and future) during decision-making affect the nutritional quality of food choices? We explore this question with an online experiment on food choices. Our findings show that active consideration of health outcomes leads to choosing products with …

Setting The Stage For The Next Farm Bill Debate, Bradley D. Lubben

Cornhusker Economics

The 2018 Farm Bill is set to expire in September 2023. New farm bill legislation will be needed by then if authority is to be extended for a wide range of programs from farm support to conservation, nutrition assistance, credit, trade promotion, rural development, research and education, and more.

The agricultural committees in Congress have already held initial hearings and many agricultural and other interest groups have noted their policy priorities. However, formal debate on a new farm bill is not expected to begin in earnest until early 2023 when a new session of Congress convenes.

While the formal debate …

Lessons Learned From The 2019 Nebraska Floods: Implications For Emergency Management, Mass Care, And Food Security, Eric E. Calloway, Nadine B. Nugent, Katie L. Stern, Ashley Mueller, Amy L. Yaroch

Nebraska Extension: Faculty and Staff Publications

This qualitative study aimed to understand the actions, challenges, and lessons learned for addressing the food and water needs of flood survivors, with a special focus on vulnerable populations and the implications for food security, to inform future disaster response efforts in the U.S. Semi-structured in-depth interviews were conducted from January to August 2020 with the local, state, and national stakeholders (n = 27) involved in the disaster response to the 2019 Nebraska floods, particularly those involved in providing mass care, such as food, water, and shelter, for the flood survivors. The challenge themes were related to limited risk …

Hybrid Incompatibility Between Ldrosophila Virilis And D. Lummei Is Stronger In The Presence Of Transposable Elements, Dean M. Castillo, Leonie C. Moyle

Nebraska Extension: Faculty and Staff Publications

Mismatches between parental genomes in selfish elements are frequently hypothesized to underlie hybrid dysfunction and drive speciation. However, because the genetic basis of most hybrid incompatibilities is unknown, testing the contribution of selfish elements to reproductive isolation is difficult. Here, we evaluated the role of transposable elements (TEs) in hybrid incompatibilities between Drosophila virilis and D. lummei by experimentally comparing hybrid incompatibility in a cross where active TEs are present in D. virilis (TE+) and absent in D. lummei, to a cross where these TEs are absent from both D. virilis (TE−) and D. lummei genotypes. Using genomic data, …

Active Consideration Of Health And Nutritional Quality Of Food Choices, Christopher R. Gustafson

Cornhusker Economics

Everyone can be positively influenced by effective interventions promoting healthier food choices. A handful of recent papers have documented positive impacts on dietary quality resulting from interventions that remind people to consider health through prompt messages or subtle priming in supermarkets and in controlled, online experiments. These studies have focused on the impact of reminders on nutritional quality rather than explaining how reminders work. An exception, Arslain, Gustafson, and Rose (2021), collected data on multiple elements of individuals' choice processes to trace the impact of reminders on decisions, showing that reminder messages led people to consider a healthier set of …

Consideration Of Nutrients Of Public Health Concern Highlighted In The Dietary Guidelines For Americans 2020-2025 Among A Large Sample Of Us Primary Shoppers, Christopher Gustafson, Devin Rose

Department of Agricultural Economics: Faculty Publications

The objective of this research is to estimate the proportion of consumers who consider nutrients identified in the Dietary Guidelines for Americans 2020-2025 (DGA) as being of public health concern during food choice using a large, population-weighted sample of U.S. residents. A question was included in a bi-monthly survey of consumer scanner panel members, asking whether respondents considered each of eight nutrients in a check-all-that-apply format. Four of these nutrients are under-consumed nutrients, while three are nutrients to avoid. Calories was additionally included, as over-consumption of calories causes weight gain. Weighted mean proportions and 95% confidence intervals were …

Active Consideration Of Future Health Can Be Prompted By Simple Health Messages And Improves Nutritional Quality Of Food Choices, Christopher R. Gustafson

Department of Agricultural Economics: Faculty Publications

Many choices that people face daily have implications for future health and well-being. Choices about what foods to purchase and consume are one of the most frequent—and universal choices—that people must make. The ongoing rise of overweight and obesity rates—and associated diet-related diseases—in the US and many other countries illustrates the future health consequences of low-quality dietary choices. While a large body of research shows that individuals with a tendency to consider the future make a wide range of healthier decisions, research on limited attention and exogenous factors influencing choice suggests that attention to the future consequences of choices may …

Us Consumer Identification Of The Health Benefits Of Dietary Fiber And Consideration Of Fiber When Making Food Choices, Christopher Gustafson, Devin J. Rose

Department of Agricultural Economics: Faculty Publications

The purposes of this study were to (1) determine beliefs in the health benefits of dietary fiber, an under-consumed nutrient of public health concern, and (2) determine the relationship between beliefs about dietary fiber and consideration of fiber when making food choices. We conducted a nationally representative within-subject randomized online survey of 42,018 US primary shoppers in May–June 2021. Participants selected health benefits they believed were associated with consumption of fiber from a list of six benefits recognized by the Food and Drug Administration (FDA), one indirect benefit, and one unrelated benefit. Respondents then indicated which nutrients, if any, they …

Bridging The Gap Between Research And Smallholder Farmers Through Community-Based Development Organizations, Nathan D. Fortner

Doctor of Plant Health Program: Dissertations and Student Research

Food demand is expected to increase 30% to 62% by 2050 according to recent estimates. Yet, annual increases in agricultural productivity have slowed and plateaued since the green revolution increases of the 1960’s. Two strategies to help address future food demand are reducing post-harvest loss and consumer waste, and closing the yield gap between potential and farmer realized yields. Some of the largest yield gaps are those of smallholder farmers. While solutions may exist to close these gaps, delivering and integrating solutions into smallholder production systems is a complex process involving research, extension, cultural factors, government policy, NGOs, private industry, …

Essays On Conservation Outcomes On Rented Farmland-Role Of Gender, Diya Ganguly

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

The essays in this dissertation explore why female landowners may be less likely than male landowners to achieve long term conservation on their land. In Chapter 1 we develop theory to model the strategic interaction between a landowner and a tenant with a focus on their gender and implementation of conservation practices on land. Within the context of a sequential-move game, we use the principal-agent framework and identity theory to model land-use choice and equilibrium payoffs between landowner and tenant. We consider cash rent lease and discounted lease whereby the tenant pays a reduced rent if they implement conservation practices …

Essays On Socioeconomic Shocks And Policies In Agriculture, Wilman Iglesias

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

The three chapters of this doctoral dissertation estimate the responses of agricultural productivity, production value of agriculture, and crop supply to some external shocks and policies. Using unique panel datasets for Colombia and the United States, this research provides new insights regarding the responsiveness of agriculture to some socioeconomic effects and related market policies. Chapter 1 studies the impact of armed conflicts in rural areas on legal agricultural productivity in Colombia by using a production function that includes violence shocks such as the forced intra-national displacement of the rural population from 1995 to 2017. Chapter 2 investigates the effect of …

The Design Of An Agricultural Youth-Centered Rural Development Program In Rwanda, Laetitia Igiraneza Sinyigenga

Honors Theses

Rwanda is primarily a rural, young, and agriculture-based country. The referred variables- agriculture, rural population, and youth- can be creatively merged to engage and empower youth for rural development. This paper indicates the utilization of cross-disciplinary knowledge to design an agricultural youth-centered rural development program in Rwanda. The program uses the interdependence of economic sectors (agriculture and education) with resources (environmental & natural resources and human resources) to boost rural community development. The program’s main activities- mentorship, agribusiness training, tutoring, exposure visits, and community work- highly reflect the requirement for advancing the selected main economic sectors and resources. There is …

Agricultural Carbon Markets: How Could They Work?, Andrew Havens

Honors Theses

The resurgence of voluntary markets in which consumers can purchase carbon credits generated by agricultural carbon sequestration has brought up many questions for farmers looking to potentially enter the market. Past carbon markets, such as the Chicago Climate Exchange, ended when a recession hit, causing demand for credits to swiftly decline. How can modern voluntary markets face these challenges along with new ones and be successful? This research paper, completed as an undergraduate thesis project at the University of Nebraska-Lincoln, examines the economic and scientific factors behind soil carbon sequestration credits. An extended literature review combined with estimation of a …

Regional Minimums In The U.S. Beef Complex, Elliott James Dennis, Bradley Lubben

Center for Agricultural Profitability

This report shows how the currently proposed policies differ; shows how these policies have aligned with historical market behavior; provides alternative specifications to regional minimums; and suggests policy alternatives to regional minimums.

The main purpose of this report is to show how current and potential alternative specifications of regional minimums would have historically aligned with observed market behavior. However, the fundamental question in the debate of the validity and effectiveness of regional minimums first rests on whether robust price discovery has historically occurred over time and within each USDA-AMS region. If there has been a lack of price discovery during …

Disturbance Reduces Fungal White-Rot Litter Mat Cover In A Wet Subtropical Forest, D. Jean Lodge, Ashley E. Van Beusekom, Grizelle González, Mareli Sánchez-Julia, Sarah Stankavich

USDA Forest Service / UNL Faculty Publications

Fungi that bind leaf litter into mats and produce white-rot via degradation of lignin and other aromatic compounds influence forest nutrient cycling and soil fertility. Extent of white-rot litter mats formed by basidiomycete fungi in Puerto Rico decreased in response to disturbances—a simulated hurricane treatment executed by canopy trimming and debris addition in 2014, a drought in 2015, a treefall, and two hurricanes 10 days apart in September 2017. Percent fungal litter mat cover ranged from 0.4% after Hurricanes Irma and Maria to a high of 53% in forest with undisturbed canopy prior to the 2017 hurricanes, with means mostly …

A Review Of Registrations For Over-The-Top Dicamba Products And Liability For State Governments For Appropriating Neighbors’ Right To Exclude, Terence J. Centner

Department of Agricultural Economics: Faculty Publications

Injuries inflicted by spray applications of dicamba herbicides on neighboring properties have raised questions about the validity of the dicamba registrations and the adequacy of protection accorded others. An evaluation of the documentation used by the Environmental Protection Agency in approving the 2020 dicamba registrations discloses a lack of evidence supporting issuance of the registrations. In the lawsuit challenging the 2020 registra- tions, the court may decide they need to be vacated. While over-the-top dicamba products for use on soybeans and cotton have been beneficial in controlling weeds, their volatility has caused major offsite injuries. Neighboring property owners have the …

How Do Consumers’ Beliefs About Product Price, Taste, And Health Affect Attention To Health-Differentiated Product-Sets?, Henriette Gitungwa, Christopher R. Gustafson

Department of Agricultural Economics: Faculty Publications

Objectives: Consumers facemyriad food products in supermarkets, obviating consideration of all options. Consumers are likely to direct scarce attention to products they believe will provide them the best outcome. However, consumers may hold inaccurate beliefs— particularly about health attributes which can lead them to omit items from consideration that they would have optimally considered We examine how consumers’ beliefs about the relative price, taste, and healthiness of food product sets affect the healthiness of the set of products they consider.

Conclusions: Believes about relative differences in nutritional quality of foods importantly influence consideration of products, potentially perpetuating misconceptions about relative …

Causes And Consequences Of Fake Transparency/Excess Information In Food Claims, Susweta Ray, Konstantinos Giannakas

Department of Agricultural Economics: Faculty Publications

This study develops novel multi-stage game-theoretic models of heterogeneous firms and consumers in vertically differentiated food product markets with asymmetric information to analyze the economic causes and market and welfare consequences of excess information/ fake transparency in food labeling. Analytical results indicate that the firms’ incentives to adopt the excess information strategy, the Nash equilibrium configuration of firms adopting the strategy, and the market and welfare impacts of excess information are case-specific and dependent on the consumer reaction to excess information, the quality of the firms’ products, the degree of product differentiation between the brand producing firms, and whether the …

Views Of Well-Being In Nonmetropolitan Nebraska: 2022 Nebraska Rural Poll Results, Rebecca J. Vogt, Heather Akin, Cheryl A. Burkhart-Kriesel, Bradley Lubben, L. J. Mcelravy, Timothy L. Meyer, Steven A. Schulz, Amanda Tupper

Nebraska Rural Poll

This year, rural Nebraskans are more pessimistic about their current situation than they’ve been in the past nine years. The proportion believing they are worse off than they were five years ago was 21 percent, up from the 11 percent reported last year. This is the highest level since 2013, when 26 percent believed they were worse off. This increase in pessimism did not translate into a decrease in optimism, however. This year, one-half of rural Nebraskans believe they are better off compared to five years ago, similar to 52 percent last year. The corresponding change occurred in a decrease …

Nebraska Farm Real Estate Market Highlights 2021-2022, Jim Jansen, Jeffrey Stokes

Nebraska Farm Real Estate Reports

Introduction

The Nebraska Farm Real Estate Market Highlights 2021-2022 report represents the 44th edition of the annual series. These reports provide an important insight on agricultural land market dynamics for stakeholders across Nebraska. In today’s market, where market transactions exceeding $1 million dollars are the norm, objective market information and analysis is more critical than ever. The focus of the report continues to be on providing unbiased information for agricultural land values and rental rates so industry participants can make educated and informed decisions.

This year, the February 2022 survey of nearly 188 expert panel members from across the state …

The Economics Of A “Portion Size Reduction” Policy, Hanin Hosni, Konstantinos Giannakas

Department of Agricultural Economics: Faculty Publications

This study develops novel models of heterogeneous consumer preferences for different dining options and imperfect competition among food suppliers to analyze the market and welfare effects of portion size reduction (PSR) for food away from home. Different scenarios on the nature of differentiation of the dining options, the information available to consumers, and their response to links between portion size and obesity, food waste, and climate change are considered within this framework. The market and welfare effects of the policy are quantified using a simulation analysis. The analysis shows that the market and welfare effects of the policy are case-specific …

Nonmetropolitan Nebraskans’ Opinions About Water, Climate, And Energy: 2022 Nebraska Rural Poll Results, Rebecca J. Vogt, Heather Akin, Cheryl A. Burkhart-Kriesel, Bradley Lubben, L. J. Mcelravy, Timothy L. Meyer, Steven A. Schulz, Amanda Tupper

Nebraska Rural Poll

Most rural Nebraskans receive their home tap water from city water or municipal water systems. Just over two-thirds of rural Nebraskans receive their drinking water from a municipal system. One-quarter have private well water and seven percent are on a rural water system.

Many rural Nebraskans have tested their home tap water for nitrates. However, a similar proportion indicated they have not tested their water or are unsure. Persons with higher household incomes are more likely than persons with lower incomes to have tested their home water for each of the items listed. Many persons with the lowest household incomes …

Community Well-Being And Leadership In Nonmetropolitan Nebraska: 2022 Nebraska Rural Poll Results, Rebecca J. Vogt, Heather Akin, Cheryl A. Burkhart-Kriesel, Bradley Lubben, L. J. Mcelravy, Timothy L. Meyer, Steven A. Schulz, Amanda Tupper

Nebraska Rural Poll

Rural Nebraskans are less positive about the current change and expected future change in their communities this year. The proportion believing their community has changed for the better has typically been greater than the proportion believing it has changed for the worse. However, last year the proportion believing their community changed for the worse was slightly more than the proportion believing it had changed for the better (similar to what occurred in 2003 and 2009). This year, that gap widened a bit.

Despite that, rural Nebraskans are positive about their community by many different measures. Most rural Nebraskans rate their …

Incorporating Chokeberry (Aronia) Into A Home Landscape, Claude J. Jean, Paul E. Read, Ellen T. Paparozzi

Nebraska Extension: Faculty and Staff Publications

Chokeberry (Aronia) is an ornamental plant that has found use in the home landscape, providing colorful displays and annually producing berries for the enjoyment of the homeowner and wildlife alike. With careful placement, this durable plant needs minimal care and has few pest problems. It is gaining attention for its timeless beauty.

Testing The Drosophila Maternal Haploid Gene For Functional Divergence And A Role In Hybrid Incompatibility, Dean M. Castillo, Benjamin Mccormick, Connor M. Kean, Sahana Natesan, Daniel A. Barbash

Nebraska Extension: Faculty and Staff Publications

Crosses between Drosophila simulans females and Drosophila melanogaster males produce viable F1 sons and poorly viable F1 daughters. Unlike most hybrid incompatibilities, this hybrid incompatibility violates Haldane’s rule, the observation that incompatibilities preferentially affect the heterogametic sex. Furthermore, it has a different genetic basis than hybrid lethality in the reciprocal cross, with the causal allele in Drosophila melanogaster being a large species-specific block of complex satellite DNA on its X chromosome known as the 359-bp satellite, rather than a protein-coding locus. The causal allele(s) in Drosophila simulans are unknown but likely involve maternally expressed genes or factors since the F1 …