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Measuring Cocoa Agricultural Productivity: A Spatio-Temporal Econometric Approach, Yurlady Chaverra-Palacios 2019 The University of San Francisco

Measuring Cocoa Agricultural Productivity: A Spatio-Temporal Econometric Approach, Yurlady Chaverra-Palacios

Master's Theses

A significant increase of 50.5 percent in the national production of cocoa was registered between 2011 and 2015 in Colombia. Nevertheless, 5,890 tons were imported in 2015 to supply domestic demand. Unlike other crops, the production of cocoa has made a significant contribution to the income of approximately 38,000 families of which 90 percent are small farm-producers with very little capital. Facilitating credit for investment is one of the main strategies of the national government to increase cocoa productivity. Correspondingly, the impact of the credit for investment on the cocoa agricultural productivity and if those investments have ...


Sustainable Agriculture Lesson For Middle School Classrooms, Sara Colombe, Madhav P. Nepal, Jennifer McLaughlin, Matthew L. Miller, Larry B. Browning, P. Troy White 2019 Hoven High School, Hoven, South Dakota

Sustainable Agriculture Lesson For Middle School Classrooms, Sara Colombe, Madhav P. Nepal, Jennifer Mclaughlin, Matthew L. Miller, Larry B. Browning, P. Troy White

Madhav Nepal

In this lesson, students will learn about sustainability, where farmers/agriculturists can meet the needs of food, fiber, and fuel for the growing population. Students learn about growing population, its growth rate, major food source, sustainability barrel, potential ripple effects of positive impacts as well as the food waste and its effects.


Rational Ecosystem-Based Fisheries Management: An Application To The Gom Commercial Reef Fish Fishery, Quinn Weninger 2019 Iowa State University

Rational Ecosystem-Based Fisheries Management: An Application To The Gom Commercial Reef Fish Fishery, Quinn Weninger

Economics Working Papers

Ecosystem-based fisheries management (EBFM) seeks to integrate the complexity of real-world marine ecosystems into the design of fisheries policies and regulations. EBFM is practiced currently with the help of complex ecosystem process models that track and simulate ecosystem function and outcomes under competing model formulations and management plans. To maintain tractability, the fishing sector component of process models maintain restrictive assumptions for multiple species harvesting technologies, fishing behavioral rules, and fishing sector responses to changing stock conditions. Predictions of fishing sector-ecosystem interaction obtained under these assumptions can grossly misinform EBFM policy design. An alternative rational fishing model is presented and ...


The Value Of Farmland: Mapping Assessor Data To Understand Land Use Change, Lyndi Perry 2019 Utah State University

The Value Of Farmland: Mapping Assessor Data To Understand Land Use Change, Lyndi Perry

All Graduate Theses and Dissertations

Ideas developed by regional economists have potential applications within the urban planning field. One potential application is toward conserving farmland, and within this thesis this topic is examined for the study area of Utah County, Utah. Using assessor data, a land value map is created and further used to develop a regional economic model and spatial models that were analyzed for patterns of land use change.

Findings show that representing land value as continuous surface maps is a useful approach. The maps reveal that Utah County has densified as its population increased while farmland loss still occurred in agriculturally-important areas ...


The Effect Of Foreign Direct Investment On Food Security: A Case Study From Rural Mozambique, Kali Fleming 2019 University of Arkansas, Fayetteville

The Effect Of Foreign Direct Investment On Food Security: A Case Study From Rural Mozambique, Kali Fleming

Agricultural Economics and Agribusiness Undergraduate Honors Theses

Poverty and food insecurity in the sub-Saharan African region have been exacerbated by the worst drought in 23 years, which impacted 25 countries in Southern and Eastern Africa from 2015-2016. In Mozambique alone it was estimated that the 2015-2016 drought resulted in over 1.5 million people becoming food insecure (FAO, 2016). To mitigate the increasing problem of household food insecurity in sub-Saharan Africa, the World Food Program recommends job creation to target the most vulnerable populations. Job creation is often the result of Foreign Direct Investment (FDI). However, critics of FDI often cite concerns of human rights abuses, inadequate ...


Evaluating The Performance Of A Relative Humidity-Based Warning System For Sooty Blotch And Flyspeck In Iowa, Hafizi Bin Rosli, Derrick A. Mayfield, Jean C. Batzer, Philip M. Dixon, Wendong Zhang, Mark L. Gleason 2019 Iowa State University

Evaluating The Performance Of A Relative Humidity-Based Warning System For Sooty Blotch And Flyspeck In Iowa, Hafizi Bin Rosli, Derrick A. Mayfield, Jean C. Batzer, Philip M. Dixon, Wendong Zhang, Mark L. Gleason

Philip Dixon

A warning system for the sooty blotch and flyspeck (SBFS) fungal disease complex of apple, developed originally for use in the southeastern United States, was modified to provide more reliable assessment of SBFS risk in Iowa. Modeling results based on previous research in Iowa and Wisconsin had suggested replacing leaf wetness duration with cumulative hours of relative humidity (RH) >=97%as the weather input to the SBFS warning system. The purpose of the present study was to evaluate the performance of a RH based SBFS warning system, and to assess the potential economic benefits for its use in Iowa. The ...


Biotechnology And Pest Resistance: An Economic Assessment Of Refuges, Terrance M. Hurley, Bruce A. Babcock, Richard L. Hellmich 2019 Iowa State University

Biotechnology And Pest Resistance: An Economic Assessment Of Refuges, Terrance M. Hurley, Bruce A. Babcock, Richard L. Hellmich

Richard L Hellmich

Biologists now engineer transgenic crop varieties that offer farmers a new tool for effectively managing pests. Concern over pest resistance, however, has prompted the Environmental Protection Agency to require resistance management plans. This paper develops an economic model of pest management with pest resistance to estimate the constant proportion of cropland planted in refuge that maximizes farm income over a fixed planning horizon. Results indicate a clear economic tradeoff between the pest control benefits of a transgenic variety and the resistance management benefits afforded by refuge.


The Montana Energy Security Act, Kennedy Bahm 2019 Carroll College

The Montana Energy Security Act, Kennedy Bahm

Carroll College Student Undergraduate Research Festival

Eliminating the use of coal-fired power nationwide has been a popular talking point in recent legislative debates in Washington, D.C. Despite obvious threats to the environment, investing in coal-fired energy offers considerable economic benefits to Americans. In Montana, this debate has been centered around the closure of the Colstrip Power Plant. The Montana Energy Security Act (HB 203), proposed by Representative Rodney Garcia, would permit the state of Montana to sell bonds to finance the $500m purchase of the Colstrip Power Plant. This case study offers a cost benefit analysis of the Montana Energy Security Act, comparing the societal ...


The Development Of The Infews-Er: A Virtual Resource Center For Transdisciplinary Graduate Student Training At The Nexus Of Food, Energy, And Water, Luis F. Rodríguez, Anna-Maria Marshall, Dan Cotton, Richard Koelsch, Jacek A. Koziel, Deanne Meyer, Dan Steward, Jill Heemstra, Anand Padmanabahn, John Classen, Nathan J. Meyer, Benjamin L. Ruddell, Sean M. Ryan, Ximing Cai, Emad Habib, Peter D. Saundry 2019 University of Illinois at Urbana-Champaign

The Development Of The Infews-Er: A Virtual Resource Center For Transdisciplinary Graduate Student Training At The Nexus Of Food, Energy, And Water, Luis F. Rodríguez, Anna-Maria Marshall, Dan Cotton, Richard Koelsch, Jacek A. Koziel, Deanne Meyer, Dan Steward, Jill Heemstra, Anand Padmanabahn, John Classen, Nathan J. Meyer, Benjamin L. Ruddell, Sean M. Ryan, Ximing Cai, Emad Habib, Peter D. Saundry

Agricultural and Biosystems Engineering Publications

Problems at the nexus of Food, Energy and Water Systems (FEWS) are among the most complex challenges we face. Spanning simple to complex temporal, geographic, social, and political framings, the questions raised at this nexus require multidisciplinary if not transdisciplinary approaches. Answers to these questions must draw from engineering, the physical and biological sciences, and the social sciences. Practical solutions depend upon a wide community of stakeholders, including industry, policymakers, and the general public. Yet there are many obstacles to working in a transdisciplinary environment: unfamiliar concepts, specialized terminology, and countless “blind” spots. Graduate education occurs in disciplinary ‘silos', often ...


British Government Information Resources, Bert Chapman 2019 Purdue University

British Government Information Resources, Bert Chapman

Libraries Faculty and Staff Creative Materials

Provides an overview of British Government information resources. Contents include basic British economic and political background and information from British Government websites including the Department of Environment, Food, and Rural Affairs (DEFRA), Brexit related material produced by British government agencies such as the Department for Exiting the European Union,, the Ministry of Defence, the National Museum of the Royal Navy, the Home Office Visas and Immigration Section, the Office of National Statistics, Her Majesty's Treasury, the British Parliament including parliamentary committees and research agencies, the website of Member of Parliament (MP) Jacob Rees-Mogg (Conservative-North East Somerset), a webcast of ...


The Impact Of The 2018 Trade Disruptions On The Iowa Economy, Edward J. Balistreri, Chad E. Hart, Dermot J. Hayes, Minghao Li, Lee Schulz, David A. Swenson, Wendong Zhang, John M. Crespi 2019 Iowa State University

The Impact Of The 2018 Trade Disruptions On The Iowa Economy, Edward J. Balistreri, Chad E. Hart, Dermot J. Hayes, Minghao Li, Lee Schulz, David A. Swenson, Wendong Zhang, John M. Crespi

John Crespi

In this analysis, we use historical trade patterns, revenue linkages, and recent futures market price changes to discern the 2018 tariffs’ near-term impacts on the state of Iowa. We use two distinct modeling techniques, and in each technique we make two distinct assumptions. First, we use partial-equilibrium modeling approaches that do not directly consider linkages among the markets and industries across the state of Iowa. In these approaches, two assumptions about price changes are invoked—either the price changes are based upon supply and demand elasticities or the price changes are based upon observations in the futures market. The partial ...


Has Specialization Put A Limit On How Far Cattle Contracting Can Go?, John Crespi, Tina L. Saitone 2019 University of California - Davis

Has Specialization Put A Limit On How Far Cattle Contracting Can Go?, John Crespi, Tina L. Saitone

John Crespi

I N 1776 Scottish philosopher Adam Smith published An Inquiry into the Nature and Causes of the Wealth of Nations, or as it is better known, The Wealth of Nations. In many mundane ways, Smith merely chronicled the burgeoning European industries he was observing; but, in doing so, he helped spread a revolutionary thinking about how factories could take advantage of specialization. Smith’s discussion of a visit to a pin factory has been re-told so often that many people probably know the story without knowing the source. The story goes like this: If you were to make a pin ...


Us Export Beef Competitiveness: Do Cattle Inventories Matter?, Lee L. Schulz, John Crespi, Chen-Ti Chen 2019 Iowa State University

Us Export Beef Competitiveness: Do Cattle Inventories Matter?, Lee L. Schulz, John Crespi, Chen-Ti Chen

John Crespi

T HE US beef industry operates in a highly competitive world market. As a global leader in the production of beef cattle, its competitive advantage in beef production stems from a well-developed infrastructure as well as a reputation for quality. Nevertheless, US beef has a disadvantage in the relative cost of production. For instance, the majority of US beef is grain-fed, while a pound of grass-fed beef can be produced at a lower cost. Lack of animal traceability and mandatory national identiβication systems can also put US beef in a vulnerable position competing with other major export countries. There is ...


Food Insecurity Awareness, Acknowledgment, And Actions On A University Campus, Heather Adams 2019 Stephen F Austin State University

Food Insecurity Awareness, Acknowledgment, And Actions On A University Campus, Heather Adams

Undergraduate Research Conference

The purpose of this pilot study was to understand student awareness of food insecurities. Subjects for the study were students enrolled in a Foundations in Human Sciences course at a university located in East Texas (n=55). Students were asked to complete an online survey concerning knowledge of food insecurities, impacts of budgeting on food buying, previous personal food insecurity, skipped or had less nutritious meals due to the cost, and the food pantry on campus.


Predicting Live Weight Of Rural African Goats Using Body Measurements, Josue Chinchilla-Vargas, M Jennifer Woodward-Greene, Curtis P. Van Tassell, Clet Wandui Masiga, Max F. Rothschild 2019 Iowa State University

Predicting Live Weight Of Rural African Goats Using Body Measurements, Josue Chinchilla-Vargas, M Jennifer Woodward-Greene, Curtis P. Van Tassell, Clet Wandui Masiga, Max F. Rothschild

Max Rothschild

The goal of the current study was to develop simple regression-based equations that allow small-scale producers to use simple body measurements to accurately predict live weight of typical African goats. The data used in this study were recorded in five African countries, and was composed of 814 individuals of 40 indigenous breeds or populations and crosses that included 158 males and 656 females. Records included the live weight measured with a hanging scale, linear body measurements, country, breed, owner, and age. Country, breed, age, chest girth, height at withers, body length, and shoulder width had large effects (p76 cm, the ...


Effect Of Fertilizer On Snow Pea Plant Height, Alexis B. Burnett 2019 Murray State University

Effect Of Fertilizer On Snow Pea Plant Height, Alexis B. Burnett

Scholars Week

Management practices in gardens are often critical to the height of the plants grown. The objective of this study was to evaluate the differences in snow pea, Pisum sativum, height when grown with Organilock fertilizer compared to without fertilizer in Murray, Kentucky. The snow peas were grown in two separate 3 foot by 4 foot plots, one with the Organilock product and the other without fertilizer. The snow peas were planted at a 1 inch depth and 2 inches apart along a cattle panel in the middle of each plot. Plot A, no Organilock fertilizer, was planted exactly two weeks ...


An Empirical Long-Run Competitive Equilibrium Model Of Subsidized Crop Insurance And Farm Industry Structure, Taylor T. Kaus 2019 University of Nebraska-Lincoln

An Empirical Long-Run Competitive Equilibrium Model Of Subsidized Crop Insurance And Farm Industry Structure, Taylor T. Kaus

Dissertations and Theses in Agricultural Economics

Previous research has found a positive and significant planted acreage response to the participation in, and increases in the premium subsidization of, the federal crop insurance program. However, no research to our knowledge has evaluated what influence the response in planted acreage and crop choice to subsidized crop insurance has had on market industry in terms of farm numbers and average farm output. To address this issue, we utilize the theory of long-run competitive equilibrium with subsidized crop insurance to generate a conceptual model with econometrically testable hypotheses. Testing the econometric model in two distinct regions of the U.S ...


Modeling And Economic Analysis Of A Crop-Livestock Production System Incorporating Cereal Rye As A Forage, Eric R. Coufal 2019 University of Nebraska-Lincoln

Modeling And Economic Analysis Of A Crop-Livestock Production System Incorporating Cereal Rye As A Forage, Eric R. Coufal

Dissertations and Theses in Agricultural Economics

This thesis consists of two chapters using agent-based modeling for a crop-livestock production system incorporating human labor. The first chapter examines the principles used to develop a fundamental simulation pertaining to grazing cereal rye (Secale cereal L.) with calves. Within the software guidelines, the base model has the ability to capture diverse system interactions between livestock/plants and land management with human labor efficiency. AnyLogic incorporates agent-based modeling while combining with discrete event modeling and system dynamics. The purpose of the model was to find the economic returns of grazing cover crops relative to the area of Mead, Nebraska. In ...


South West Food Community: A Place-Based Pilot Study To Understand The Food Security System, Stephanie Louise Godrich, Jennifer Payet, Deborah Brealey, Melinda Edmunds, Melissa Stoneham, Amanda Devine 2019 Edith Cowan University

South West Food Community: A Place-Based Pilot Study To Understand The Food Security System, Stephanie Louise Godrich, Jennifer Payet, Deborah Brealey, Melinda Edmunds, Melissa Stoneham, Amanda Devine

ECU Publications Post 2013

The objectives of this study were to: (i) Identify initiatives supporting healthy food availability, access and utilisation in the South West region of Western Australia (WA); and (ii) understand how they were functioning as a system to enhance community-level food security (FS). This study used a novel approach; a Systemic Innovation Lab, to interview initiative leaders/stakeholders about their FS initiative. Initiative characteristics measured included those which were associated with creating the effective conditions for FS systems change. Information was uploaded to an innovative online tool, creating a 'transition card' (matrix) of initiatives and partnering organisations. Fifty-one participants reported on ...


Development Of A Food Safety Training For A Prison Farm: Challenges And Solutions, Angela M. Shaw, Kara Helterbran 2019 Iowa State University

Development Of A Food Safety Training For A Prison Farm: Challenges And Solutions, Angela M. Shaw, Kara Helterbran

Angela M. Shaw

Workers on prison farms in the United States commonly grow produce and row crops and raise livestock. Teaching good agricultural practices to prisoners and prison staff increases the safety of the food produced and reduces the likelihood of an illness outbreak. We developed a food safety curriculum for use on prison farms in Iowa. In developing the curriculum, we encountered many challenges that resulted in modifications in the content and delivery method. We present the content of the curriculum and provide educators with a better understanding of challenges and potential solutions related to working with prison farms.


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