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Registros recuperados: 147
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Using a Farmer's Beta for Improved Estimation of Actual Production History (APH) Yields AgEcon
Carriquiry, Miguel A.; Babcock, Bruce A.; Hart, Chad E..
The effect of sampling error in estimation of farmers' mean yields for crop insurance purposes is explored using farm-level corn yield data in Iowa from 1990 to 2000 and Monte Carlo simulations. We find that sampling error combined with nonlinearities in the insurance indemnity function will result in empirically estimated crop insurance rates that exceed actuarially fair values by between 2 and 16 percent, depending on the coverage level and the number of observations used to estimate mean yields. Accounting for the adverse selection caused by sampling error results in crop insurance rates that will exceed fair values by between 42 and 127 percent. We propose a new estimator for mean yields based on a common decomposition of farm yields into systemic and...
Tipo: Working or Discussion Paper Palavras-chave: Actual production history (APH); Crop insurance; Mean yields estimation; Sampling error; Farm Management.
Ano: 2005 URL: http://purl.umn.edu/18600
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Managing Quality under Heterogeneous Consumer Demand and Product Quality AgEcon
Carriquiry, Miguel A.; Babcock, Bruce A..
Based on accepted advances in the marketing, economics, consumer behavior, and satisfaction literatures, we develop a micro-foundations model of a firm that needs to manage the quality of a product that is inherently heterogeneous in the presence of varying customer tastes or expectations for quality. Our model blends elements of the returns to quality, customer lifetime value, and service profit chain approaches to marketing. The model is then used to explain several empirical results pertaining to the marketing literature by explicitly articulating the trade-offs between customer satisfaction and costs (including opportunity costs) of quality. In this environment firms will find it optimal to allow some customers to go unsatisfied. We show that the...
Tipo: Working or Discussion Paper Palavras-chave: Consumer satisfaction; Heterogeneous customers; Quality expectations; Quality heterogeneity; Quality management; Repeated purchases; Demand and Price Analysis.
Ano: 2005 URL: http://purl.umn.edu/18637
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Greenhouse Gas Impacts of Ethanol from Iowa Corn AgEcon
Feng, Hongli; Rubin, Ofir D.; Babcock, Bruce A..
As the United States begins to move towards putting an economic value on reducing greenhouse gas (GHG) emissions, the need for improved accounting standards becomes acute. Lifecycle analysis (LCA), which involves the systematic collection and interpretation of material flow in all relevant processes of a product, has become the accepted procedure to use to determine greenhouse gas emissions of products ranging from transportation fuels, to building materials, to food production (Farrell et al., 2006; Hill et al., 2006; Owen, 2004). The basic motivation of LCA is that, to conduct a fair assessment of the environmental impacts of a product, it is necessary to take into account all of the processes throughout the product’s lifespan, including the extraction...
Tipo: Conference Paper or Presentation Palavras-chave: Crop Production/Industries; Environmental Economics and Policy.
Ano: 2008 URL: http://purl.umn.edu/49101
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Investment in Cellulosic Biofuel Refineries: Does the Waivable Mandate Matter? AgEcon
Miao, Ruiqing; Babcock, Bruce A.; Hennessy, David A..
Renewable Fuel Standard (RFS) aims to support investment in cellulosic biofuel refineries by mandating a floor on the amount of biofuels being consumed in every calendar year. Tradable Renewable Identification Numbers (RINs) is the market mechanism by which the mandates are to be met. But the RFS allows for a waiver of the mandates. In this paper we construct a conceptual model to study the impact of RINs on stimulating investment in cellulosic biofuel refineries under a waivable mandate. In a two-period framework, we compare the first-period investment level in three scenarios: (1) laissez-faire, (2) non-waivable mandate implemented through RINs, and (3) waivable mandate implemented through RINs. We find that RINs associated with a waivable mandate may or...
Tipo: Conference Paper or Presentation Palavras-chave: Cellulosic biofuels; Renewable identification numbers; Waivable mandate; Investment; Industrial Organization; Resource /Energy Economics and Policy; Risk and Uncertainty.
Ano: 2010 URL: http://purl.umn.edu/61165
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Impacts of Ethanol on Planted Acreage in Market Equilibrium AgEcon
Feng, Hongli; Babcock, Bruce A..
Replaced with revised version of paper 07/15/08.
Tipo: Working or Discussion Paper Palavras-chave: Biofuels; Complements in supply; Ethanol; (in)direct land use changes; Substitutes in supply; Yield increases..
Ano: 2008 URL: http://purl.umn.edu/37406
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The Choice of Tillage, Rotation, and Soil Testing Practices: Economic and Environmental Implications AgEcon
Wu, JunJie; Babcock, Bruce A.; Lakshminarayan, P.G..
Which management practices farmers adopt has a significant effect on agricultural pollution. Research has analyzed factors influencing adoption of a single management practice. But often adoption decisions about many practices are made simultaneously, which suggests use of a polychotomous-choice model to analyze decisions. We apply such a model to the choice of alternative management practices on cropland in the Central Nebraska Basin and control for self-selection and the interaction among alternative practices. We use the results of the choice model to estimate the economic and environmental effect so adopting alternative combinations of management practices. Our results suggest that crop rotation and soil N testing are complementary practices, perhaps...
Tipo: Working or Discussion Paper Palavras-chave: Conservation tillage; Rotation; Soil N testing; Corn yield; Fertilizer use; Soil erosion; The polychotomous-choice selectivity model; Crop Production/Industries.
Ano: 1996 URL: http://purl.umn.edu/18444
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The Long-Run Impact of Corn-Based Ethanol on the Grain, Oilseed, and Livestock Sectors: A Preliminary Assessment AgEcon
Elobeid, Amani E.; Tokgoz, Simla; Hayes, Dermot J.; Babcock, Bruce A.; Hart, Chad E..
Replaced with revised version of paper 11/17/06.
Tipo: Working or Discussion Paper Palavras-chave: Biofuels; Commodity markets; Corn price; Energy markets; Ethanol; Resource /Energy Economics and Policy.
Ano: 2006 URL: http://purl.umn.edu/18290
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AN ANALYSIS OF REGIONAL ECONOMIC GROWTH IN THE US MIDWEST AgEcon
Monchuk, Daniel C.; Miranowski, John A.; Hayes, Dermot J.; Babcock, Bruce A..
In this paper we examine more closely some of the forces that underlie economic growth at the county level. In an effort to describe a much more comprehensive regional economic growth model, we address a variety of different growth hypotheses by introducing a large number of growth related variables. When formulating our hypotheses and specifying our growth model we make liberal use of GIS mapping software to “"paint"” a picture of where growth spots exist and why. Our empirical estimation indicates amenities, state and local tax burdens, population, amount of agricultural activity, and demographics have important economic growth impacts.
Tipo: Conference Paper or Presentation Palavras-chave: Community/Rural/Urban Development.
Ano: 2004 URL: http://purl.umn.edu/20369
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OPTIMAL QUALITY ASSURANCE SYSTEMS FOR AGRICULTURAL OUTPUTS AgEcon
Carriquiry, Miguel A.; Babcock, Bruce A.; Carbone, Roxana.
New quality assurance systems (QASs) are being put in place to facilitate the flow of information about agricultural and food products. But what constitutes a proper mix of public and private efforts in setting up QASs is an unsettled question. A better understanding of private sector incentives for setting up such systems will help clarify what role the public sector might have in establishing standards. We contribute to this understanding by modeling the optimal degree of "stringency" or assurance in a processor's quality control system over procurement of agricultural output when there exists uncertainty about quality. Our model addresses two questions: (1) Should a buyer of agricultural outputs implement a QAS as a way to gain and provide information...
Tipo: Working or Discussion Paper Palavras-chave: Food products; Price premium; Product differentiation; Quality assurance; Production Economics.
Ano: 2003 URL: http://purl.umn.edu/18450
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The Relative Efficiency of Voluntary vs. Mandatory Environmental Regulations AgEcon
Wu, JunJie; Babcock, Bruce A..
Conservation program administered by USDA have traditionally been voluntary, with USDDA providing technical and fiscal assistance to farmers. This tradition is continued din the Federal Agriculture Improvement and Reform Act of 1996. Under these programs, farmers commit themselves to adopting a land management practice and, in turn, the government provides technical and financial assistance. Our analysis suggest that these voluntary programs are more efficient than a program that mandates adoption if and only if the per acre social cost of government expenditure under these program is less than the largest per acre farmer loss under the mandatory approach plus the additional implementation and enforcement cost. This necessary and sufficient condition is...
Tipo: Working or Discussion Paper Palavras-chave: Environmental Economics and Policy.
Ano: 1996 URL: http://purl.umn.edu/18500
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INSURING EGGS IN BASKETS AgEcon
Hart, Chad E.; Hayes, Dermot J.; Babcock, Bruce A..
The vast majority of crop and revenue insurance policies sold in the United States are single-crop policies that insure against low yields or low revenues for each crop grown on a particular farm. This practice of insuring one crop at a time runs counter to the traditional risk management practice of diversifying across several enterprises to avoid putting all of ones eggs in a single basket. This paper examines the construction of whole-farm crop revenue insurance programs to include livestock. The whole-farm insurance product covers crop revenues from corn and soybeans and livestock revenues from hog production. The results show that at coverage levels of 95 percent or lower, the fair insurance premiums for this product on a well-diversified Iowa hog...
Tipo: Working or Discussion Paper Palavras-chave: Correlations; Diversification; Livestock; Volatilities; Whole-farm revenue insurance; Livestock Production/Industries; Risk and Uncertainty.
Ano: 2003 URL: http://purl.umn.edu/18497
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Loan Deficiency Payments or the Loan Program? AgEcon
Hayes, Dermot J.; Babcock, Bruce A..
Tipo: Working or Discussion Paper Palavras-chave: Agricultural and Food Policy.
Ano: 1998 URL: http://purl.umn.edu/18285
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Readdressing the Fertilizer Problem AgEcon
Paulson, Nicholas D.; Babcock, Bruce A..
The production literature has shown that inputs such as fertilizer can be defined as risk-increasing. However, farmers also consistently overapply nitrogen. A model of optimal input use under uncertainty is used to address this paradox. Using experimental data, a stochastic production relationship between yield and soil nitrate is estimated. Numerical results show that input uncertainty may cause farmers to overapply nitrogen. Survey data suggest that farmers are risk averse, but prefer small chances of high yields compared to small chances of crop failures when expected yields are equivalent. Furthermore, yield risk and yield variability are not equivalent.
Tipo: Journal Article Palavras-chave: Corn; Nitrogen fertilizer; Risk-increasing; Yield risk; Crop Production/Industries.
Ano: 2010 URL: http://purl.umn.edu/97853
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Investment in Cellulosic Biofuel Refineries: Do Renewable Identification Numbers Matter? AgEcon
Miao, Ruiqing; Hennessy, David A.; Babcock, Bruce A..
A floor and trade policy in Renewable Identification Numbers (RINs) is the market mechanism by which U.S. biofuel consumption mandates are met. A conceptual model is developed to study the impact of RINs on stimulating investment in cellulosic biofuel refineries. In a two-period framework, we compare the first-period investment level (FIL) in three scenarios: (1) laissez-faire, (2) RINs under a nonwaivable mandate (NWM) policy, and (3) RINs under a waivable mandate (WM) policy. Results show that when firm-level marginal costs are constants, then RINs under WM policy do not stimulate FIL but they do increase the expected profit of more efficient investors. When firm-level marginal costs are not constants, however, RINs under WM policy stimulate FIL. RINs...
Tipo: Working or Discussion Paper Palavras-chave: Cellulosic biofuels; Investment; Renewable Identification Numbers; Waivable mandate; Crop Production/Industries; Resource /Energy Economics and Policy; Risk and Uncertainty.
Ano: 2010 URL: http://purl.umn.edu/94001
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Crop Nutrient Needs Potentially Supplied by Livestock Manure in Iowa, Illinois, and Indiana AgEcon
Wang, Erda; Babcock, Bruce A.; Hurley, Terrance M..
Tipo: Working or Discussion Paper Palavras-chave: Crop Production/Industries; Livestock Production/Industries.
Ano: 1998 URL: http://purl.umn.edu/18476
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BIOTECHNOLOGY AND PEST RESISTANCE: AN ECONOMIC ASSESSMENT OF REFUGES AgEcon
Hurley, Terrance M.; Babcock, Bruce A.; Hellmich, Richard L..
Transgenic crops offer farmers a new and effective pest control option. However, the wide spread adoption of these crops could lead to a resistant pest population. This paper demonstrates how a pest refuge can be used to maximise the value of farm income in a dynamic model with genetic foundations.
Tipo: Conference Paper or Presentation Palavras-chave: Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies.
Ano: 1998 URL: http://purl.umn.edu/21000
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Greenhouse Gas Impacts of Ethanol from Iowa Corn: Life Cycle Analysis versus System-wide Accounting AgEcon
Feng, Hongli; Rubin, Ofir D.; Babcock, Bruce A..
Life cycle analysis (LCA) is the standard approach used to evaluate the greenhouse gas (GHG) benefits of biofuels. However, it is increasingly recognized that LCA results do not account for some impacts including land use changes that have important implications on GHGs. Thus, an alternative accounting system that goes beyond LCA is needed. In this paper, we contribute to the literature by laying out the basics of a system-wide accounting (SWA) method that takes into account all potential changes in GHGs resulting from biofuel expansion. We applied both LCA and SWA to assess the GHG impacts of ethanol based on Iowa corn. Growing corn in rotation with soybeans generated 35% less GHG emissions than growing corn after corn. Based on average corn production,...
Tipo: Conference Paper or Presentation Palavras-chave: Biofuels; Corn ethanol; Greenhouse gas; Life cycle analysis; System-wide accounting; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy.
Ano: 2008 URL: http://purl.umn.edu/6503
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Costs and Benefits to Taxpayers, Consumers, and Producers from U.S. Ethanol Policies AgEcon
Babcock, Bruce A.; Barr, Kanlaya J.; Carriquiry, Miguel A..
The U.S. ethanol industry is lobbying hard for an extension of existing ethanol import tariffs and blenders tax credits before they expire at the end of 2010. The purpose of this study is to examine the likely consequences on the U.S. ethanol industry, corn producers, taxpayers, fuel blenders, and fuel consumers if current policy is not extended. Impacts of different ethanol policies in both 2011 and 2014 were estimated. Estimates were obtained by developing a new stochastic model that calculates market-clearing prices for U.S. ethanol, Brazilian ethanol, and U.S. corn. The model is stochastic because market-clearing prices are calculated for 5,000 random draws of corn yields and wholesale gasoline prices. Key assumptions in this study are that the...
Tipo: Report Palavras-chave: Blenders tax credit; Brazilian ethanol; Ethanol import tariffs; U.S. ethanol policy.; Crop Production/Industries; Demand and Price Analysis; International Relations/Trade; Resource /Energy Economics and Policy.
Ano: 2010 URL: http://purl.umn.edu/92383
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Program Participation and Farm-Level Adoption of Conservation Tillage: Estimates from a Multinomial Logit Model AgEcon
Babcock, Bruce A.; Chaherli, Nabil M.; Lakshminarayan, P.G..
The conservation compliance provision of the 1985 Food Security Act requires highly erodible land to be cropped according to a locally approved conservation plan. There is overwhelming evidence that conservation compliance has reduced soil erosion. A key issue confronting Congress as they consider 1995 Farm Bill options is the fate of these erosion benefits if commodity programs are eliminated or it the subsidy level is greatly reduced. This study provides policymakers with additional insights into the relationship between conservation tillage practices and government programs by using observed farmer behavior. The central question addressed is: If future program benefits are not tied to conservation practices, will there be a significant decline in the...
Tipo: Working or Discussion Paper Palavras-chave: Land Economics/Use.
Ano: 1995 URL: http://purl.umn.edu/18561
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ECONOMIC PERSPECTIVES ON GMO MARKET SEGREGATION AgEcon
Miranowski, John A.; Moschini, GianCarlo; Babcock, Bruce A.; Duffy, Michael D.; Wisner, Robert N.; Beghin, John C.; Hayes, Dermot J.; Lence, Sergio H.; Baumel, C. Phillip; Harl, Neil E..
Genetically modified organisms (GMO) crops have become increasingly popular with Iowa farmers over the past few years. The current genetic modifications are focused on pest management technologies. Although there were early efforts by environmental activists to disrupt the adoption of GMO technology, few concerns were raised by U.S. food retailers and consumers. The primary concern was getting European Union (EU) regulatory approval for each GMO crop variety event as late as spring 1999. The situation has changed dramatically in the last few months, and the current situation is highly uncertain. This paper provides the economic perspective on the issues surrounding non-GMO/GMO market segregation, the potential price impacts that may materialize with...
Tipo: Working or Discussion Paper Palavras-chave: Marketing; Research and Development/Tech Change/Emerging Technologies.
Ano: 1999 URL: http://purl.umn.edu/18232
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