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Registros recuperados: 65
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Profitability and Environmental Stewardship for Row Crop Production: Are There Trade-offs? AgEcon
Jolejole, Christina B.; Swinton, Scott M.; Robertson, G. Philip; Syswerda, Sara P..
Tipo: Conference Paper or Presentation Palavras-chave: Crop Production/Industries; Environmental Economics and Policy.
Ano: 2009 URL: http://purl.umn.edu/50920
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Can Dispersed Biomass Processing Protect the Environment and Cover the Bottom Line for Biofuel? AgEcon
Egbendewe-Mondzozo, Aklesso; Swinton, Scott M.; Bals, Bryan D.; Dale, Bruce E..
This paper compares environmental and profitability outcomes for a centralized biorefinery for cellulosic ethanol that does all processing versus a biorefinery linked to a decentralized array of local depots that pretreat biomass into concentrated briquettes. The analysis uses a spatial bioeconomic model that maximizes predicted profit from crop and energy products, subject to the requirement that the biorefinery must be operated at full capacity. The model draws upon biophysical crop input-output coefficients simulated with the EPIC model, as well as input and output prices, spatial transportation costs, ethanol yields from biomass, and biorefinery capital and operational costs. The model was applied to 82 cropping systems simulated across 37...
Tipo: Working Paper Palavras-chave: Biomass production; Bioenergy supply; Cellulosic ethanol; Environmental trade-off analysis; Bioeconomic modeling; EPIC; Spatial configuration; Local biomass processing; Crop Production/Industries; Environmental Economics and Policy; Production Economics; Resource /Energy Economics and Policy; Q16; Q15; Q57; Q18.
Ano: 2011 URL: http://purl.umn.edu/119348
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AGRICULTURAL PRODUCTION CONTRACTS TO REDUCE NITRATE LEACHING: A WHOLE-FARM ANALYSIS AgEcon
Chu, Mei-Chin; Swinton, Scott M.; Batie, Sandra S.; Dobbins, Craig L..
Ten alternative seed corn contract specifications are evaluated with respect to nitrate leaching and profitability for the processor firm (principal) and contracted grower (agent). A whole-farm optimization and feasibility analysis suggest that contract terms can be used to reduce non-point source pollution.
Tipo: Working or Discussion Paper Palavras-chave: Crop Production/Industries.
Ano: 1996 URL: http://purl.umn.edu/11806
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The Effect of Developed-Country Pesticide Standards on Health and Pesticide-Induced Morbidity of Kenya's Green Bean Family Farmers AgEcon
Okello, Julius Juma; Swinton, Scott M..
This paper examines the effects of compliance with developed country pesticide standards (DC-PS) on pesticide-related health costs and morbidity of developing country fresh vegetable growers. DC-PS require that farmers i) only use approved pesticides (usually less toxic to humans than ones used before), ii) apply pesticides only when pest scouting reveals the need to do so, and iii) handle, use, store and dispose off pesticides in ways that do not pose health threats to farm workers and farm family members. This paper uses survey regression to estimate a model of health costs of pesticide exposure (based on cost of illness approach) and survey poisson regression to estimate a model for use of protective devices. It finds that compliance with DC-PS reduces...
Tipo: Conference Paper or Presentation Palavras-chave: Agricultural and Food Policy.
Ano: 2006 URL: http://purl.umn.edu/25508
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Food vs. Wood: Dynamic Choices for Kenyan Smallholders AgEcon
Peralta, Maria Alexandra; Swinton, Scott M..
Natural resource management
Tipo: Conference Paper or Presentation Palavras-chave: Agroforestry; Eucalyptus; Food security; Kenya; Linear programming; Smallholder agriculture; Whole farm model; Crop Production/Industries; International Development; Production Economics; Resource /Energy Economics and Policy; O13; Q12.
Ano: 2009 URL: http://purl.umn.edu/49401
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As Ecosystem Services Are Demanded of Agriculture, What of Agricultural Economists? AgEcon
Swinton, Scott M..
Tipo: Journal Article Palavras-chave: Environmental Economics and Policy; Teaching/Communication/Extension/Profession.
Ano: 2005 URL: http://purl.umn.edu/27960
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Measuring the Value of Changes in Ecosystem Services from Agriculture: Economic Contributions to Multidisciplinary Research (PowerPoint) AgEcon
Swinton, Scott M..
Tipo: Conference Paper or Presentation Palavras-chave: Ecosystem services; Economics; Environmental Economics and Policy; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy; Q.
Ano: 2010 URL: http://purl.umn.edu/58990
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INVESTMENT ANALYSIS OF ALTERNATIVE FRUIT TREE SPRAYERS IN MICHIGAN ORCHARDS AgEcon
Swinton, Scott M.; Asuming-Brempong, Samuel; van Ee, Gary R..
Changing orchard sprayer technology and rising pesticide costs to fruit growers raise the need to analyze the profitability of alternative sprayer investments. This study analyzes investments in four orchard sprayers for use in Michigan apple production: an air blast sprayer, a tower boom sprayer, a tower boom sprayer equipped with electronic sensors that activate spray nozzles when foliage is detected, and an air curtain sprayer that targets spray with a layer of forced air. Assuming equal pest control efficacy, the study calculates the annualized net present cost per acre of owning and operating each sprayer for ten years using a baseline discount rate of 10 percent over 200 acres of semi-dwarf apple trees. The analysis found the annualized net...
Tipo: Working or Discussion Paper Palavras-chave: Crop Production/Industries.
Ano: 1997 URL: http://purl.umn.edu/11492
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CAPTURING HOUSEHOLD-LEVEL SPATIAL INFLUENCE IN AGRICULTURAL MANAGEMENT USING RANDOM EFFECTS REGRESSION AgEcon
Swinton, Scott M..
Data on agricultural and natural resource management typically have spatial patterns related to the landscapes from which they came. Consequently, econometric models designed to explain the determinants of humans' natural resource management practices or their outcomes often have spatial structure that can bring bias or inefficiency to parameter estimates. Although econometric tools are available to correct for spatial structure, such tools are largely lacking for use with discrete dependent variable models. While one obvious solution would be to develop the necessary tools, an alternative is to identify conditions under which spatial dependency can be managed effectively without formal spatial autoregressive models. This study examines conditions...
Tipo: Working or Discussion Paper Palavras-chave: Farm Management.
Ano: 2002 URL: http://purl.umn.edu/11516
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SUSTAINABLE MANAGEMENT OF PRIVATE AND COMMUNAL LANDS IN NORTHERN ETHIOPIA AgEcon
Gebremedhin, Berhanu; Swinton, Scott M..
Land degradation in sub-Saharan Africa reduces the land's potential productivity through soil erosion, nutrient depletion, soil moisture stress, deforestation and overgrazing. Efforts to reverse land degradation require an understanding of why it takes place and what factors govern farmers' willingness to invest in land conservation. These factors differ importantly between private and public lands. This study synthesizes results from analyses of the technological and institutional factors determining the adoption of natural resource conservation at both the household and the community levels in the northern Ethiopian region of Tigray. Using 1995-96 data from 250 Tigray farm household interviews, it first examines private land management, focusing on 1)...
Tipo: Working or Discussion Paper Palavras-chave: Land Economics/Use.
Ano: 2001 URL: http://purl.umn.edu/11680
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FQPA IMPLEMENTATION TO REDUCE PESTICIDE RESIDUE RISKS: PART II: IMPLEMENTATION ALTERNATIVES AND STRATEGIES AgEcon
Swinton, Scott M.; Batie, Sandra S.; Schulz, Mary A..
Implementation of the Food Quality Protection Act (FQPA) is fraught with difficulty due to the divergent perspectives and demands of stakeholders in the process. In "Part I: Agricultural Producer Concerns," the authors reviewed the concerns of food producers about potential FQPA threats to farm profitability, international competitiveness, consumer perceptions, and the development of pest resistance to remaining pesticides. Fortunately, lessons from past environmental policy and economic theory offer useful principles for how to implement the FQPA. This paper, "Part II: Implementation Alternatives and Strategies" addresses ways to accommodate producer concerns while meeting the policy mandate of reducing risk from pesticide exposure, especially for...
Tipo: Working or Discussion Paper Palavras-chave: Crop Production/Industries; Food Consumption/Nutrition/Food Safety.
Ano: 1999 URL: http://purl.umn.edu/11488
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Market Interactions, Farmer Choices, and the Sustainability of Growing Advanced Biofuels AgEcon
Jiang, Yong; Swinton, Scott M..
Advanced biofuels such as cellulosic ethanol are of great interest for their potential to supply a significant portion of U.S. fuel needs plus advantages over corn grain-based ethanol. The sustainability of agriculture-based advanced biofuels depends on how farmers would respond in providing biomass feedstock, yet economic behavior by farmers has been under recognized by the science community. Focusing on markets and policy incentives, this research shows that farmers are unlikely to convert current grain cropland to grow a dedicated cellulosic biomass crop such as switchgrass. However, the financial incentives to harvest cellulosic biomass provided by the 2008 farm bill may stimulate corn production due to demand for corn grain for feed and ethanol and...
Tipo: Working or Discussion Paper Palavras-chave: Biomass; Energy; Advanced biofuels; Corn; Land use; Switchgrass; Cellulosic ethanol; Environmental Economics and Policy; Production Economics; Resource /Energy Economics and Policy; Q42; Q12.
Ano: 2008 URL: http://purl.umn.edu/43634
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Switching to Perennial Energy Crops under Uncertainty and Costly Reversibility AgEcon
Song, Feng; Zhao, Jinhua; Swinton, Scott M..
We study a farmer’s decision to convert traditional crop land into growing dedicated energy crops, taking in account sunk conversion costs, uncertainties in traditional and energy crop returns, and learning. The optimal decision rules differ significantly from the expected net present value rule, which ignores learning, and from real option models that allow only one way conversions into energy crops. These models also predict drastically different patterns of land conversions into and out of energy crops over time. Using corn-soybean rotations and switchgrass as examples, we show that the model predictions are sensitive to assumptions about stochastic processes of the returns. Government policies might have unintended consequences: subsidizing conversion...
Tipo: Working or Discussion Paper Palavras-chave: Real options; Irreversibility; Sunk costs; Land conversion; Biofuel; Cellulosic biomass; Dynamic modeling; Stochastic process; Biofuel policy; Land Economics/Use; Resource /Energy Economics and Policy; Risk and Uncertainty; Q42; Q24.
Ano: 2009 URL: http://purl.umn.edu/56195
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ECONOMIC ANALYSIS APPROACHES TO POTATO-BASED INTEGRATED CROP SYSTEMS: ISSUES AND METHOD AgEcon
Labarta, Ricardo A.; Swinton, Scott M.; Black, J. Roy; Snapp, Siglinde; Leep, Richard.
In response to stagnating yields and mounting pest problems, Michigan potato growers are investigating ways to bring manure and cover crops back into potato production systems. The alternative systems bring benefits and costs for monetary net returns, the variability of net returns, and environmental impacts. This paper reviews the likely yield and biological system effects of alternative potato production systems that incorporate manure and cover crops. After briefly considering research designs for gathering experimental versus farm field data, it reviews four economic analysis methods for evaluating alternative systems. All methods are illustrated with examples. First, for evaluating comparative average profitability, it reviews a) enterprise...
Tipo: Working or Discussion Paper Palavras-chave: Crop Production/Industries.
Ano: 2002 URL: http://purl.umn.edu/11677
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PROFITABILITY ANALYSIS OF SOYBEAN APHID CONTROL TREATMENTS IN THREE NORTH-CENTRAL STATES AgEcon
Song, Feng; Swinton, Scott M.; DiFonzo, Christina; O'Neal, Matthew; Ragsdale, David W..
Tipo: Working or Discussion Paper Palavras-chave: Crop Production/Industries.
Ano: 2006 URL: http://purl.umn.edu/11489
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Combining Supply and Demand Estimates for Ecosystem Services from Cropland AgEcon
Ma, Shan; Swinton, Scott M.; Lupi, Frank.
Payment-for-Ecosystem-Services (PES) programs are gaining appeal as flexible approaches to inducing the voluntary provision of ecosystem services (ES). Farmers, who manage agricultural ecosystems, provide important nonmarket ecosystem services to the public by their choice of production inputs and management practices. Although there exist various PES programs in the United States and Europe, we are aware of none that was designed based on a comprehensive understanding of the underlying supply and demand of ecosystem services. Taking advantage of unique, coupled datasets of stated preferences, this paper combines a supply-side cost function of farmers’ willingness to adopt practices that provide increased ES with a demand-side social benefit function of...
Tipo: Conference Paper or Presentation Palavras-chave: Payment-for-Ecosystem-Services (PES); Contingent valuation; Aggregate supply and demand; Cropland; Eutrophication; Greenhouse gas; Agricultural and Food Policy; Environmental Economics and Policy; Q11; Q51; Q57; Q58.
Ano: 2011 URL: http://purl.umn.edu/103501
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THE PROFITABILITY OF SUSTAINABLE AGRICULTURE ON A REPRESENTATIVE GRAIN FARM IN THE MID-ATLANTIC REGION, 1981-89: COMMENT AgEcon
Roberts, Wayne S.; Swinton, Scott M..
A long term whole farm analysis comparing conventional and low-input farming systems is reviewed. A computational error led to the mistaken conclusion that conventional farming with government programs is less preferred by risk-averse farmers than the low input alternative. The greater income variance of conventional agriculture need not make it less preferred provided a higher mean income sufficiently offsets the higher variance.
Tipo: Journal Article Palavras-chave: Agribusiness.
Ano: 1995 URL: http://purl.umn.edu/31466
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Public's Willingness to Pay for Ecosystem Service Improvements From Agriculture AgEcon
Chen, Huilan; Lupi, Frank; Swinton, Scott M..
Tipo: Conference Paper or Presentation Palavras-chave: Consumer/Household Economics; Demand and Price Analysis.
Ano: 2010 URL: http://purl.umn.edu/61676
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Can Bt Technology Reduce Poverty Among African Cotton Growers? An Ex Ante Analysis of the Private and Social Profitability of Bt Cotton Seed in Mozambique. AgEcon
Pitoro, Raul; Walker, Thomas S.; Tschirley, David L.; Swinton, Scott M.; Boughton, Duncan; de Marrule, Higino Francisco.
This paper presents an ex ante analysis of the private and social profitability of the introduction of Bt cotton for a major cotton producing area of northern Mozambique. Cotton is especially relevant to rural poverty reduction because smallholders often have few alternative cash earning activities, and yields are among the lowest in Africa. Multivariate regression is used to quantify the relationship between pest control and yield loss at farm level as a basis for estimating the expected yield gain from the introduction of Bt cotton. Partial budget analysis of technical packages with and without Bt cotton seed reveals a strong divergence between private (negative) and social (positive) profitability. The Mozambique case indicates that effective...
Tipo: Conference Paper or Presentation Palavras-chave: Bt cotton; Social profitability; Poverty reduction; Mozambique; Agricultural and Food Policy; Crop Production/Industries; International Development; Production Economics; Productivity Analysis; Research and Development/Tech Change/Emerging Technologies.
Ano: 2009 URL: http://purl.umn.edu/51633
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Spatially Optimal Habitat Management For Natural Pest Control Services AgEcon
Zhang, Wei; van derr Werf, Wopke; Swinton, Scott M..
The control of crop pests by their natural enemies represents an important ecosystem service that maintains the stability of agricultural systems and has the potential to mitigate pest control costs. Recently, there has been growing interest in enhancing natural control services via habitat management that provides resources for adult natural enemies, such as food and shelter. Management of natural enemy populations has received little attention in the economic literature on pest control. Most such prior studies have explored optimal chemical-based pest management. One recent paper developed a threshold-based pesticide decision rule to account for the presence of natural enemies. However, no prior studies have investigated economically optimal spatial...
Tipo: Conference Paper or Presentation Palavras-chave: Ecosystem services; Biological control; Natural enemies; Habitat management; Soybean aphid; Spatial optimization; Land use; Environmental Economics and Policy.
Ano: 2007 URL: http://purl.umn.edu/43030
Registros recuperados: 65
Primeira ... 1234 ... Última
 

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