Consulta: creatorFacets:"Fernandez-Cornejo,   Jorge"
Registros recuperados: 39
Data/hora: 09/06/2024 08:39:38

Rapid Growth in Adoption of Genetically Engineered Crops Continues in U.S.
Provedor de dados: 31
Autores: Fernandez-Cornejo,   Jorge.
Tipo: Article
Palavras-chave: Consumer/Household Economics; Crop Production/Industries.
Ano: 2008
URL: http://purl.umn.edu/124034

OFF-FARM LABOR AND THE STRUCTURE OF U.S. AGRICULTURE: THE CASE OF CORN/SOYBEAN FARMS
Provedor de dados: 31
Autores: Nehring,   Richard F.; Fernandez-Cornejo,   Jorge; Banker,   David E.
While the growing importance of off-farm earnings suggests  large benefits accrue to farmers from efforts to expand off-farm income opportunities, survival still depends on greater efficiency. To comprehensively gauge the economic health of  farm operator households we interpret off-farm income as an output along with corn, soybeans, livestock, and other crops.  To accomplish this task we use two related methodologies. First, using 2000 data, we setup a multiactivity cost function to analyze labor allocation decisions within the farm operator household and also to estimate returns to scale and scope.  Second, using 1996-2000 data, we follow an input distance function approach to estimate returns to scale, technical progress, cost economies, and technical...
Tipo: Conference Paper or Presentation
Palavras-chave: Labor and Human Capital.
Ano: 2002
URL: http://purl.umn.edu/19763

INNOVATION AND REGULATION IN THE PESTICIDE INDUSTRY
Provedor de dados: 31
Autores: Ollinger,   Michael; Fernandez-Cornejo,   Jorge.
This paper examines the impact of pesticide regulation on the number of new pesticide registrations and pesticide toxicity.  Results suggest that regulation adversely affects new pesticide introductions but encourages the development of pesticides with fewer toxic side effects.  The estimated regression model implies that a 10% increase in regulatory costs (about $1.5 million per pesticide) causes a 5% reduction in the number of pesticides with higher toxicity.
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1998
URL: http://purl.umn.edu/31508

Technology Adoption and Off-Farm Household Income: The Case of Herbicide-Tolerant Soybeans
Provedor de dados: 31
Autores: Fernandez-Cornejo,   Jorge; Hendricks,   Chad; Mishra,   Ashok K.
We model the interaction of off-farm work and adoption of agricultural technologies and the impact of adopting these technologies on farm household income from on farm and off-farm sources after controlling for such interaction, and estimate the model for the case of adoption of herbicide-tolerant (HT) soybeans using a nationwide survey of soybean farms for 2000.  We find that adoption of HT soybeans is positively and significantly related to off-farm household income for U.S. soybean farmers, after controlling for other factors.  In addition, while on-farm household income is not significantly related to adoption, total household income increases significantly with adoption.
Tipo: Journal Article
Palavras-chave: Agricultural household model; Biotechnology; Herbicide tolerant soybeans; Off-farm income; Technology adoption; O33; Q12.
Ano: 2005
URL: http://purl.umn.edu/43487

THE ADOPTION OF IPM TECHNIQUES BY VEGETABLE GROWERS IN FLORIDA, MICHIGAN AND TEXAS
Provedor de dados: 31
Autores: Fernandez-Cornejo,   Jorge; Beach,   E. Douglas; Huang,   Wen-Yuan.
Factors influencing the adoption of Integrated Pest Management (IPM) techniques are studied using survey data from individual vegetable producers from Florida, Michigan, and Texas.  Farmers who adopt IPM tend to be less risk averse and use more managerial time on farm activities than nonadopters.  Adopters are also more likely to operate large, irrigated farms and use more family labor.  Locational factors and the type of crop grown are also influential in IPM adoption.  The analysis uses a logit framework and introduces adopter categories first conceptualized by rural sociologists.
Tipo: Journal Article
Palavras-chave: Diffusion of innovations; Integrated pest management; Vegetables; Technology adoption; Crop Production/Industries.
Ano: 1994
URL: http://purl.umn.edu/15441

ECONOMIC ISSUES IN AGRICULTURAL BIOTECHNOLOGY
Provedor de dados: 31
Autores: Shoemaker,   Robbin A.; Harwood,   Joy L.; Day-Rubenstein,   Kelly A.; Dunahay,   Terry; Heisey,   Paul W.; Hoffman,   Linwood A.; Klotz-Ingram,   Cassandra; Lin,   William W.; Mitchell,   Lorraine; McBride,   William D.; Fernandez-Cornejo,   Jorge.
Agricultural biotechnology has been advancing very rapidly, and while it presents many promises, it also poses as many questions. Many dimensions to agricultural biotechnology need to be considered to adequately inform public policy. Policy is made more difficult by the fact that agricultural biotechnology encompasses many policy issues addressed in very different ways. We have identified several key areas — agricultural research policy, industry structure, production and marketing, consumer issues, and future world food demand — where agricultural biotechnology is dramatically affecting the public policy agenda. This report focuses on the economic aspects of these issues and addresses some current and timely issues as well as longer term issues.
Tipo: Report
Palavras-chave: Biotechnology; Economics; Adoption; Patents; Research policy; Markets; Market segmentation; Identity preservation; Research and Development/Tech Change/Emerging Technologies.
Ano: 2001
URL: http://purl.umn.edu/33735

GENETICALLY ENGINEERED CROPS FOR PEST MANAGEMENT IN U.S. AGRICULTURE
Provedor de dados: 31
Autores: Fernandez-Cornejo,   Jorge; McBride,   William D.
Adoption of genetically engineered crops with traits for pest management has risen dramatically since their commercial introduction in the mid-1990's.  The farm-level impacts of such crops on pesticide use, yields, and net returns vary with the crop and technology examined.  Adoption of herbicide-tolerant cotton led to significant increase in yields and net returns, but was not associated with significant changes in herbicide use.  On the other hand, increase in adoption of herbicide-tolerant soybeans led to small but significant increases in yields, no changes in net returns, and significant decreases in herbicide use.  Adoption of Bt cotton in the Southeast significantly increased yields and net returns and significantly reduced insecticide use.
Tipo: Report
Palavras-chave: Biotechnology; Genetic engineering; Pest management; Field crops; Input traits; Crop Production/Industries.
Ano: 2000
URL: http://purl.umn.edu/33931

THE MICROECONOMIC IMPACT OF IPM ADOPTION: THEORY AND APPLICATION
Provedor de dados: 31
Autores: Fernandez-Cornejo,   Jorge.
This paper develops a methodology to calculate the impact of integrated pest management (IPM) on pesticide use, yields, and farm profits.  The methodology is applied to the IPM adoption among fresh market tomato producers in eight states.  The method is of general applicability.  It accounts for self-selectivity and simultaneity, and the pesticide demand and yield equations are theoretically consistent with a profit function.  The results support the notion that fresh market tomato growers who adopt IPM for insects and diseases apply significantly less insecticides and fungicides, respectively, than do those who do not adopt IPM; IPM adoption has an insignificant effect on yields and a small effect on profits.
Tipo: Journal Article
Palavras-chave: Crop Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/31416

SIZE AND DISTRIBUTION OF MARKET BENEFITS FROM ADOPTING BIOTECH CROPS
Provedor de dados: 31
Autores: Price,   Gregory K.; Lin,   William W.; Falck-Zepeda,   Jose Benjamin; Fernandez-Cornejo,   Jorge.
This study estimates the total benefit arising from the adoption of agricultural biotechnology in one year (1997) and its distribution among key stakeholders along the production and marketing chain. The analysis focuses on three biotech crops: herbicide-tolerant soybeans, insect-resistant (Bt) cotton, and herbicide-tolerant cotton. Adoption of these crops resulted in estimated market benefits of $212.5-$300.7 million for Bt cotton, $231.8 million for herbicide-tolerant cotton, and $307.5 million for herbicide-tolerant soybeans. These benefits accounted for small shares of crop production value, ranging from 2 percent to 5 percent. U.S. farmers captured a much larger share (about a third) of the benefits for Bt cotton than with herbicide-tolerant soybeans...
Tipo: Report
Palavras-chave: Agricultural biotechnology; Distribution of benefits; Bt cotton; Herbicide-tolerant cotton; Herbicide-tolerant soybeans; Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies.
Ano: 2003
URL: http://purl.umn.edu/33562

SHORT- AND LONG-RUN DEMAND AND SUBSTITUTION OF AGRICULTURAL INPUTS
Provedor de dados: 31
Autores: Fernandez-Cornejo,   Jorge.
Short- and long-run Hicksian and Marshallian elasticities are estimated, along with Morishima elasticities of substitution, using a restricted profit function and a series of decomposition equations.  Convexity in prices and concavity in quasi-fixed factors of the restricted profit function are simultaneously imposed using Bayesian techniques.  The empirical model is disaggregated in the input side, utilizes a Fuss-quadratic flexible functional form, incorporates the impact of agricultural policies, and introduces a new weather index.  The methodology is applied to Illinois's agriculture, and implications for agriculture in the Corn Belt and the Northeast are briefly discussed.
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1992
URL: http://purl.umn.edu/28848

Dynamic Diffusion with Disadoption: The Case of Crop Biotechnology in the USA
Provedor de dados: 31
Autores: Fernandez-Cornejo,   Jorge; Alexander,   Corinne E.; Goodhue,   Rachael E.
Controversy over the use of genetically engineered (GE) crops may have induced some farmers to disadopt these seeds, making a traditional diffusion model inappropriate. In this study, we develop and estimate a dynamic diffusion model, examine the diffusion paths of GE corn, soybeans, and cotton, predict the adoption of those crops over the next two years, and explore the main determinants of the diffusion rate. Our estimates indicate that future growth of Bt crops will be slower or negative, depending mainly on the infestation levels of the target pests. Adoption of herbicide-tolerant soybeans and cotton will continue to increase, unless consumer sentiment in the United States changes radically.
Tipo: Journal Article
Palavras-chave: Crop Production/Industries.
Ano: 2002
URL: http://purl.umn.edu/31479

OFF-FARM WORK AND THE ECONOMIC IMPACT OF ADOPTING HERBICIDE-TOLERANT CROPS
Provedor de dados: 31
Autores: Fernandez-Cornejo,   Jorge; Hendricks,   Chad.
This paper examines the hypothesis that farmers may be adopting herbicide-tolerant crops because of the simplicity and flexibility of weed control, freeing management time. We develop an econometric model to analyze the adoption of HT soybeans controlling for the effect of off-farm work and estimate it using 2000 survey data.
Tipo: Conference Paper or Presentation
Palavras-chave: Labor and Human Capital.
Ano: 2003
URL: http://purl.umn.edu/22130

OFF-FARM INCOME, TECHNOLOGY ADOPTION, AND FARM ECONOMIC PERFORMANCE
Provedor de dados: 31
Autores: Fernandez-Cornejo,   Jorge; Mishra,   Ashok K.; Nehring,   Richard F.; Hendricks,   Chad; Southern,   Malaya; Gregory,   Alexandra.
The economic well-being of most U.S. farm households depends on income from both onfarm and off-farm activities. Consequently, for many farm households, economic decisions (including technology adoption and other production decisions) are likely to be shaped by the allocation of managerial time among such activities. While time allocation decisions are usually not measured directly, we observe the outcomes of such decisions, such as onfarm and off-farm income. This report finds that a farm operator’s off-farm employment and off-farm income vary inversely with the size of the farm. Operators of smaller farm operations improve their economic performance by compensating for the scale disadvantages of their farm business with more off-farm involvement....
Tipo: Report
Palavras-chave: Off-farm income; Farm households; Economic performance; Managerial time; Scale economies; Scope economies; Technical efficiency; Technology adoption; Farm size; Agricultural Finance; Farm Management.
Ano: 2007
URL: http://purl.umn.edu/7234

ESTIMATING FARM-LEVEL EFFECTS OF ADOPTING BIOTECHNOLOGY
Provedor de dados: 31
Autores: Lin,   William W.; Price,   Gregory K.; Fernandez-Cornejo,   Jorge.
This study estimates farm-level effects of adopting 1997 herbicide-tolerant soybeans, Bt cotton, and herbicide-tolerant cotton and compares results obtained from various data sources.  While adopters' yields are generally higher and pest control costs lower than those of nonadopters, considerable differences exist in farm-level effects across data sources and production regions.
Tipo: Conference Paper or Presentation
Palavras-chave: Farm Management; Research and Development/Tech Change/Emerging Technologies.
Ano: 2001
URL: http://purl.umn.edu/20484

Revisiting the Impact of Bt Corn Adoption by U.S. Farmers
Provedor de dados: 31
Autores: Fernandez-Cornejo,   Jorge; Wechsler,   Seth James.
This study examines the impact of adopting Bt corn on farm profits, yields, and insecticide use. The study employs an econometric model that corrects for self-selection and simultaneity.  The model is estimated using nationwide farm-level survey data for 2005.  Regression analysis confirms that Bt adoption is associated with increased profits, yields and seeding rates.  However, the results of this analysis suggest that Bt adoption is not significantly related to insecticide use. This result appears to be related to the fact that insect infestation levels were lower in 2005 than they were in earlier years.
Tipo: Conference Paper or Presentation
Palavras-chave: Genetically engineered corn; Insect resistance; Bt corn; Insecticide use; Technology adoption; Yields; Production Economics; Research and Development/Tech Change/Emerging Technologies.
Ano: 2011
URL: http://purl.umn.edu/103327

THE SEED INDUSTRY IN U.S. AGRICULTURE: AN EXPLORATION OF DATA AND INFORMATION ON CROP SEED MARKETS, REGULATION, INDUSTRY STRUCTURE, AND RESEARCH AND DEVELOPMENT
Provedor de dados: 31
Autores: Fernandez-Cornejo,   Jorge.
The unprecedented growth in crop yields and agricultural total factor productivity over the past 70 years owes much to a series of biological innovations embodied in seeds, beginning with the development of hybrid crops in the United States in the early part of the 20th century, continuing with the adoption of high-yielding varieties during the Green Revolution of the 1960s and 1970s, and more recently, modern biotechnology. Throughout this period, the seed industry evolved, as small businesses gave way to larger enterprises that integrated plant breeding, production, conditioning, and marketing functions. The industry was further shaped by widespread mergers and acquisitions in the latter part of the century, rapid growth - in private research and...
Tipo: Report
Palavras-chave: Seed markets; Seed costs and prices; Regulation; Plant breeding; Field crops; Research and development; Industry concentration; Biotechnology; Agribusiness; Crop Production/Industries.
Ano: 2004
URL: http://purl.umn.edu/33671

ADOPTION OF BIOENGINEERED CROPS
Provedor de dados: 31
Autores: Fernandez-Cornejo,   Jorge; McBride,   William D.
Use of crop biotechnology products, such as genetically engineered (GE) crops with input traits for pest management, has risen dramatically since commercial approval in the mid-1990s. This report addresses several of the economic dimensions regarding farmer adoption of bioengineered crops, including herbicidetolerant and insect-resistant varieties. In particular, the report examines: (1) the extent of adoption of bioengineered crops, their diffusion path, and expected adoption rates over the next few years; (2) factors affecting the adoption of bioengineered crops; and (3) farm-level impacts of the adoption of bioengineered crops. Data used in the analysis are mostly from USDA surveys.
Tipo: Report
Palavras-chave: Biotechnology; Technology adoption; Genetic engineering; Pest management; Financial effects; Tillage; Herbicide-tolerant crops; Bt crops; Corn; Soybeans; Cotton; Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies.
Ano: 2002
URL: http://purl.umn.edu/33957

The First Decade of Genetically Engineered Crops in the USA
Provedor de dados: 31
Autores: Fernandez-Cornejo,   Jorge; Caswell,   Margriet.
Ten years after the first generation of genetically engineered (GE) varieties became commercially available, adoption of these varieties by U.S. farmers is widespread for major crops. Driven by farmers' expectations of higher yields, savings in management time, and lower pesticide costs, the adoption of corn, soybean, and cotton GE varieties has increased rapidly. Despite the benefits, however, environmental and consumer concerns may have limited acceptance of GE crops, particularly in Europe. This report focuses on GE crops and their adoption in the United States over the past 10 years. It examines the three major stakeholders of agricultural biotechnology and finds that (1) the pace of R&amp;D activity by producers of GE seed (the seed firms and...
Tipo: Report
Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 2006
URL: http://purl.umn.edu/33897

THE ECONOMICS OF ORGANIC FARMING IN THE U.S.: THE CASE OF TOMATO PRODUCTION
Provedor de dados: 31
Autores: Jans,   Sharon; Fernandez-Cornejo,   Jorge.
This paper presents an econometric estimate of the effect of adopting organic tomatoes on yields, revenues, and farm profits. The model accounts for self-selection, simultaneity, and is theoretically consistent. Data are obtained from USDA=s 1998 survey, which for the first time provides data on organic and conventional operations growing tomatoes.
Tipo: Conference Paper or Presentation
Palavras-chave: Farm Management.
Ano: 2001
URL: http://purl.umn.edu/20618

Off-Farm Work and Economic Performance: Comparing Crop and Livestock Farms
Provedor de dados: 31
Autores: Fernandez-Cornejo,   Jorge; Nehring,   Richard F.; Erickson,   Kenneth W.
This paper examines how off-farm work affects the economic performance of crop and (selected) livestock farms.  It estimates returns to scale and technical efficiency following an input distance function approach and compares the relative performance of dairy and corn farm operator households with and without off-farm work. We use farm-level data from the USDA's ARMS survey for 1996-2005.  The impact of off-farm work on scale and technical efficiency is examined from two viewpoints: first, the effect of off-farm work on the scale and technical efficiency of the farm business in the production of traditional commodities (farm-level perspective); second, the impact of off-farm work on scale and technical efficiency at the household level, considering both...
Tipo: Conference Paper or Presentation
Palavras-chave: Farm Management; Productivity Analysis.
Ano: 2007
URL: http://purl.umn.edu/9904

Conservation Tillage, Pesticide Use, and Biotech Crops in the U.S.A.
Provedor de dados: 31
Autores: Fernandez-Cornejo,   Jorge; Hallahan,   Charles B.; Nehring,   Richard F.; Wechsler,   Seth James; Grube,   Arthur.
This paper presents the first part of an ongoing project whose objective is to present a long term relationship between conservation tillage, adoption of GE crops and pesticide use for major crops in the United States. In addition, the project aims to provide some innovative tests on causality using a panel data set.  This paper presents preliminary results for soybeans.
Tipo: Conference Paper or Presentation
Palavras-chave: Conservation tillage; Biotechnology; Genetically engineered crops; Soybeans; Herbicides; Environmental Economics and Policy; Farm Management; Production Economics.
Ano: 2010
URL: http://purl.umn.edu/60941

Assessing Recent Trends in Pesticide Use in U.S. Agriculture
Provedor de dados: 31
Autores: Fernandez-Cornejo,   Jorge; Nehring,   Richard F.; Newcomb Sinha,   Elizabeth; Grube,   Arthur; Vialou,   Alexandre.
Replaced with revised version of paper 04/20/10.
Tipo: Conference Paper or Presentation
Palavras-chave: Pesticides; Herbicides; Insecticides; Hedonic models; Genetically engineered crops; Corn; Soybeans; Cotton; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Production Economics; Productivity Analysis; Research Methods/ Statistical Methods.
Ano: 2009
URL: http://purl.umn.edu/49271

The Impacts of Off-Farm Income on Farm Efficiency, Scale, and Profitability  for Corn Farms
Provedor de dados: 31
Autores: Nehring,   Richard F.; Fernandez-Cornejo,   Jorge.
This paper estimates returns to scale and technical efficiency of corn farms following an input distance function approach and compares the relative performance of farm operator households with and without off-farm wages and salaries. We use 1995-2003 USDA data.  The input distance function results suggest that off-farm outputs and inputs can be modeled in a multi-activity framework, which materially alter performance measures in the Corn Belt. We find that off-farm income boosts scale and technical efficiency of smaller operations. We also find that the number of hours worked off-farm by the spouse contributes to a higher technical efficiency.
Tipo: Conference Paper or Presentation
Palavras-chave: Farm Management.
Ano: 2005
URL: http://purl.umn.edu/19566

The Economic Impact of Genetically Engineered Crops
Provedor de dados: 31
Autores: Zilberman,   David; Sexton,   Steven E.; Marra,   Michele C.; Fernandez-Cornejo,   Jorge.
Outstanding Choices Article Award, 2011
Tipo: Journal Article
Palavras-chave: Biotechnology; GMO; Adoption; Innovation; Productivity; Crop Production/Industries; Q160; Q240; Q420.
Ano: 2010
URL: http://purl.umn.edu/94769

THE ENVIRONMENTAL EFFECTS OF ADOPTING IPM TECHNIQUES: THE CASE OF PEACH PRODUCERS
Provedor de dados: 31
Autores: Fernandez-Cornejo,   Jorge; Ferraioli,   Jennifer.
The impact of adopting integrated pest management (IPM) techniques is examined for peach producers in eight states accounting for most of the U.S. production.  The method accounts for self-selectivity, simultaneity, and the pesticide demand equations are theoretically consistent with a restricted-profit function.  Biological pest management techniques tend to reduce pesticide use and pesticide toxicity substantially, while pesticide-efficiency techniques (using scouting and economic thresholds) have an increasing effect on pesticide use and toxicity, and cultural techniques have an insignificant effect on pesticide use and toxicity.
Tipo: Journal Article
Palavras-chave: Biological techniques; Cultural techniques; Integrated pest management; Peach production; Pesticide use; Self-selection; Toxicity; Environmental Economics and Policy.
Ano: 1999
URL: http://purl.umn.edu/15148

Fifteen Years Later: Examining the Adoption of Bt Corn Varieties by U.S. Farmers
Provedor de dados: 31
Autores: Fernandez-Cornejo,   Jorge; Wechsler,   Seth James.
This study presents recent results on the impact of adopting Bt corn on farm profits, yields, and seed and insecticide use.  The study employs an econometric model that corrects for self-selection and simultaneity and uses farm-level survey data for 2010.  Results confirm previous findings that Bt adoption is associated with increased profits and yields. However the Bt adoption is not significantly related to insecticide use as infestation levels in 2010 are very low and 90 percent of the farmers in the sample did not use insecticides at all.
Tipo: Presentation
Palavras-chave: Genetically engineered corn; Bt corn; Insecticide use; Corn yields. technology adoption.; Crop Production/Industries; Farm Management; Production Economics.
Ano: 2012
URL: http://purl.umn.edu/124257

FACTORS AFFECTING THE LIKELIHOOD OF CORN ROOTWORM BT SEED ADOPTION
Provedor de dados: 31
Autores: Payne,   Tim; Fernandez-Cornejo,   Jorge; Daberkow,   Stan G.
The likelihood of adopting corn rootworm (CRW) Bt seed technology was analyzed using an ordered logit model. Data used to estimate the model came from USDA’s 2001 Agricultural Resource Management Survey. Statistically significant variables include operator age, farm type, farm size, rootworm loss and current treatment for rootworm, off farm labor, and Bt technology for corn borer. The likelihood of adoption was not related to crop rotation, tillage system, new variant CRW region, or education.
Tipo: Conference Paper or Presentation
Palavras-chave: Crop Production/Industries.
Ano: 2003
URL: http://purl.umn.edu/35983

The Impacts of Adopting Genetically Engineered Crops in the USA: The Case of Bt Corn
Provedor de dados: 31
Autores: Fernandez-Cornejo,   Jorge; Li,   Jiayi.
This paper develops an econometric model to analyze the onfarm impact of adoption of genetically engineered (GE) crops on pesticide use and yields after controlling for other factors.  The model, which corrects for self-selection and simultaneity and is consistent with profit maximization, is used to estimate the relationship between Bt corn adoption and insecticide use and yields using data from a nationwide farm survey carried out in 2001.  Statistically significant econometric results, controlling for other factors, show a moderate insecticide reduction and a small yield increase associated with adoption of Bt corn relative to using conventional corn varieties in 2001.
Tipo: Conference Paper or Presentation
Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 2005
URL: http://purl.umn.edu/19318

Impact of GE Crop Adoption on Quality-Adjusted Herbicide Use in U.S. Corn Production
Provedor de dados: 31
Autores: Nehring,   Richard F.; Martin,   Andrew; Fernandez-Cornejo,   Jorge; Hallahan,   Charles B.; Vialou,   Alexandre; Wechsler,   Seth James; Grube,   Arthur.
This paper presents findings on the use of HT corn and quality-adjusted herbicide use for 12 key corn producing states using a panel data set for 1986-2008. Our preliminary findings indicate an insignificant impact of HT corn on herbicide use, conditioning or accounting for HT corn with other important drivers of corn herbicide use: HT soy, corn output price, glyphoste price, nonherbicide glyponsate price, and percentage of continuous corn and low-till corn. However, we find a positive and significant impact of HT corn on herbicide use in selected states, using regional interaction terms.  We use econometric techniques to avoid spurious regression results. Other preliminary runs indicated that the results hold when running the US and regional interactions...
Tipo: Conference Paper or Presentation
Palavras-chave: HT-corn; Herbicides; Weed resistance; Glyphosate; Corn; Environmental Economics and Policy; Farm Management; Production Economics.
Ano: 2011
URL: http://purl.umn.edu/103369

FARM-LEVEL EFFECTS OF ADOPTING HERBICIDE-TOLERANT SOYBEANS IN THE U.S.A.
Provedor de dados: 31
Autores: Fernandez-Cornejo,   Jorge; Klotz-Ingram,   Cassandra; Jans,   Sharon.
This paper estimates the on-farm impacts of adopting herbicide-tolerant soybean on herbicide use, yields, and farm profits, using an econometric model that corrects for self-selection and simultaneity and is consistent with profit maximization.  The model is estimated using nationwide farm-level survey data for 1997.  Given that the use of herbicide-tolerant soybeans involves the substitution of a particular herbicide - primarily glyphosate - for other herbicides, we explicitly consider this substitution process in the model.
Tipo: Journal Article
Palavras-chave: Genetically engineered soybeans; Herbicide tolerance; Herbicide use; Farm profits; Technology adoption; Yields; Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies.
Ano: 2002
URL: http://purl.umn.edu/15522

FARM-LEVEL EFFECTS OF ADOPTING GENETICALLY ENGINEERED CROPS IN THE U.S.A.
Provedor de dados: 31
Autores: Fernandez-Cornejo,   Jorge; Klotz-Ingram,   Cassandra; Jans,   Sharon.
Tipo: Conference Paper or Presentation
Palavras-chave: Crop Production/Industries.
Ano: 2000
URL: http://purl.umn.edu/26018

CONCENTRATION, MARKET POWER, AND COST EFFICIENCY IN THE CORN SEED INDUSTRY
Provedor de dados: 31
Autores: Fernandez-Cornejo,   Jorge; Spielman,   David J.
The paper presents a model developed to examine the effects of industry concentration on market power and cost efficiency in the seed industry.  In addition, the paper presents preliminary measures of the relative strengths of these effects for the case of the U.S. corn seed industry over the past 3 decades.  The model uses conjectural elasticities and is estimated using data collected from USDA sources.  The empirical results allow us to distinguish between the market power and cost effects of concentration, and to ascertain the tradeoff between the cost efficiency and market power resulting from higher concentration in the corn seed industry.
Tipo: Conference Paper or Presentation
Palavras-chave: Marketing.
Ano: 2002
URL: http://purl.umn.edu/19877

Effects of the GM Controversy on Iowa Corn-Soybean Farmers' Acreage Allocation Decisions
Provedor de dados: 31
Autores: Alexander,   Corinne E.; Fernandez-Cornejo,   Jorge; Goodhue,   Rachael E.
Prior to the 2000 planting season, some industry observers predicted acreage of genetically modified crops would decline dramatically. However, actual 2000 plantings presented a puzzle. Farmers reduced their acreage of genetically modified corn, but concurrently increased their acreage of genetically modified soybeans. We demonstrate that it may be theoretically optimal for risk-averse farmers to reduce their corn acreage but not their soybean acreage. However, past experience, attitudes, and farm size explained planting decisions to a larger degree than did risk preferences.
Tipo: Journal Article
Palavras-chave: Expected utility; Genetically modified crops; Two-limit tobit model; Crop Production/Industries.
Ano: 2003
URL: http://purl.umn.edu/31066

Farmers’ Adoption of Genetically Modified Varieties with Input Traits
Provedor de dados: 31
Autores: Alexander,   Corinne E.; Fernandez-Cornejo,   Jorge; Goodhue,   Rachael E.
Tipo: Working or Discussion Paper
Palavras-chave: Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies.
Ano: 2003
URL: http://purl.umn.edu/11928

In the Long Run
Provedor de dados: 31
Autores: Fernandez-Cornejo,   Jorge.
Tipo: Article
Palavras-chave: Research Methods/ Statistical Methods.
Ano: 2009
URL: http://purl.umn.edu/125224

DECOMPOSING THE SIZE EFFECT ON THE ADOPTION OF INNOVATIONS: AGROBIOTECHNOLOGY AND PRECISION FARMING
Provedor de dados: 31
Autores: Fernandez-Cornejo,   Jorge; Daberkow,   Stan G.; McBride,   William D.
This study contrasts the relationship between farm-size and adoption for two types of innovations, genetically engineered crops and precision farming, controlling for other factors. The analysis uses an extension of the McDonald and Moffit decomposition for the two-limit Tobit model.
Tipo: Conference Paper or Presentation
Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 2001
URL: http://purl.umn.edu/20527

NONRADIAL TECHNICAL EFFICIENCY AND CHEMICAL INPUT USE IN AGRICULTURE
Provedor de dados: 31
Autores: Fernandez-Cornejo,   Jorge.
Radial and nonradial measures of technical efficiency are calculated empirically for Florida vegetable farms using DEA (data envelopment analysis) techniques.  Use of the nonradial measures to calculate overuse of chemical inputs by inefficient farmers is demonstrated and the potential for reduced environmental loading of pesticides and fertilizers by improving efficiency is evaluated.
Tipo: Journal Article
Palavras-chave: Crop Production/Industries.
Ano: 1994
URL: http://purl.umn.edu/31322

OFF-FARM WORK AND THE ADOPTION OF HERBICIDE-TOLERANT SOYBEANS
Provedor de dados: 31
Autores: Fernandez-Cornejo,   Jorge; Hendricks,   Chad.
Adoption of herbicide-tolerant (HT) soybeans is proceeding rapidly despite little difference between the net returns to HT versus conventional soybeans. Using a multivariate probit model, we analyze the interaction of off-farm work and adoption and test if farmers adopt HT soybeans because its simplicity and flexibility frees management time.
Tipo: Conference Paper or Presentation
Palavras-chave: Biotechnology; Herbicide-tolerant soybeans; Technology adoption; Off-farm work; Household models; Crop Production/Industries.
Ano: 2003
URL: http://purl.umn.edu/35133

Impact of GMO Crop Adoption on Quality-Adjusted Pesticide Use in Corn and Soybeans: A Full Picture
Provedor de dados: 31
Autores: Vialou,   Alexandre; Nehring,   Richard F.; Fernandez-Cornejo,   Jorge; Grube,   Arthur.
Replaced with revised version of paper 07/15/08.
Tipo: Conference Paper or Presentation
Palavras-chave: Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies.
Ano: 2008
URL: http://purl.umn.edu/6429