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Registros recuperados: 165
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Credit Markets for Small Farms: Role for Institutional Innovations AgEcon
Pillarisetti, Satish; Mehrotra, Nirupam.
Indian agriculture is characterized by the predominance of smallholders. This paper seeks to examine the access of small holders to agriculture credit in the context of financial sector reforms in India in the nineties. It explores the role of institutional and non institutional agencies in extending agriculture credit to the smallholder and the ground realities as revealed by recent data sets. The nineties also saw the unfolding of the largest microfinance programme in the world in India. While this was very successful in bringing micro enterprises under the credit purview, it was unable to cater to the need for agriculture credit. This paper examines the reasons for this and suggests that newer kinds of institutional innovations in the Pilot stage like,...
Tipo: Conference Paper or Presentation Palavras-chave: Agriculture credit; Farm Size; Land Economics/Use; Q1; Q15.
Ano: 2009 URL: http://purl.umn.edu/52858
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Phosphorus-Based Application of Livestock Manure and the Law of Unintended Consequences AgEcon
Norwood, F. Bailey; Chvosta, Jan.
The application of manure phosphorus at rates above crop uptake has resulted in water pollution for some regions. In response, new manure management standards will require some farms to match manure phosphorus applications rates with crop uptake. For some regions, this will lead to more crop acres and a shift toward crops with greater nutrient uptake, both of which will increase nitrogen runoff. The greater nitrogen runoff could offset the lower phosphorus runoff to result in greater water pollution. This demonstrates the law of unintended consequences, which results when policy does not consider how economic agents respond to incentives.
Tipo: Journal Article Palavras-chave: Best management practice; Eutrophication; Manure management; Nutrient runoff; Phosphorus standards; Pollution control; Water pollution; Environmental Economics and Policy; Production Economics; D6; Q1; Q2.
Ano: 2005 URL: http://purl.umn.edu/43715
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BARRIERS FOR DEVELOPMENT IN ZAMBIAN SMALL- AND MEDIUM-SIZE FARMS: EVIDENCE FROM MICRO-DATA AgEcon
Kimhi, Ayal; Chiwele, Dennis K..
The objective of this paper is to identify factors which limit the ability of Zambian farmers to increase Maize productivity and/or diversify their crop mix. Both may enable wealth accumulation, investments, and further expansion. Specifically, we link variations in agricultural decisions, practices, and outcomes, to variations in the tightness of the different constraints. We model crop production decisions as having recursive structure. Initially, farmers decide on land allocation among the different crops, based on their information set at planting time. Then, as new information (weather, market conditions) is revealed, farmers can change output by influencing the yield. This recursive structure enables to separate the effects of the constraints on the...
Tipo: Conference Paper or Presentation Palavras-chave: Crop Diversification; Maize Productivity; Recursive Decisions; Two-stage Estimation; Censored Dependent Variables; Community/Rural/Urban Development; International Development; Resource /Energy Economics and Policy; O1; Q1.
Ano: 2000 URL: http://purl.umn.edu/21877
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CHARACTERIZING UNCERTAIN OUTCOMES WITH THE RESTRICTED HT TRANSFORMATION AgEcon
Moffitt, L. Joe.
Restrictions on the hyperbolic trigonometric (HT) transformation are imposed to guarantee that a probability density function is obtained from the maximum likelihood estimation. Performance of the restricted HT transformation using data generated from normal, beta, gamma, logistic, log-normal, Pareto, Weibull, order statistic, and bimodal populations is investigated via sampling experiments. Results suggest that the restricted HT transformaltion is sufficiently flexible to compete with the actual population distributions in most cases. Application of the restricted HT transformation is illustrated by characterizing uncertain net income per acre for community-supported agriculture farms in the northeastern United States.
Tipo: Journal Article Palavras-chave: Farm management; Hyperbolic trigonometric transformation; Uncertainty; Farm Management; C2; Q1.
Ano: 2002 URL: http://purl.umn.edu/15074
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Effects of the Conservation Reserve Program on Elevator Merchandising Margins in Oklahoma AgEcon
Adam, Brian D.; Hong, Seung Jee; Dicks, Michael R..
The Conservation Reserve Program (CRP) takes cropland out of production for 10 years, reducing grain supplies available to elevators. Results suggest that the program has negatively impacted elevator merchandising margins, but that elevators adjusted rather quickly to CRP changes, making most of the adjustment within 1 year. The reduction in margins reflects an element of pressure on agribusiness that has not been measured in previous studies.
Tipo: Journal Article Palavras-chave: Agribusiness; Conservation Reserve Program; Country elevators; Land retirement programs; Merchandising margins; Q1; Q2; D4; L1.
Ano: 2004 URL: http://purl.umn.edu/42835
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Chinese Regional Agricultural Productivity: 1994-2005 AgEcon
Tong, Haizhi; Fulginiti, Lilyan E.; Sesmero, Juan P..
Replaced with revised version of paper 07/24/09.
Tipo: Journal Article Palavras-chave: TFP growth; Stochastic production frontier; Malmquist index; Provincial TFP.; Productivity Analysis; O4; O5; Q1.
Ano: 2009 URL: http://purl.umn.edu/51784
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Capital Use Intensity and Productivity Biases AgEcon
Andersen, Matthew A.; Alston, Julian M.; Pardey, Philip G..
This is a substantially revised version of “Capital Use Intensity and Productivity Biases.” Andersen, Matt A.; Alston, Julian M.; Pardey, Philip G., St. Paul, MN: University of Minnesota, Department of Applied Economics; University of Minnesota, International Science and Technology Practice and Policy (InSTePP), 2007. (Staff paper P07-06; InSTePP paper 07-02)
Tipo: Working or Discussion Paper Palavras-chave: U.S. agriculture; Pro-cyclical productivity; Capital utilization; Primal productivity bias; Productivity Analysis; D24; C51; Q1; O4; O47.
Ano: 2010 URL: http://purl.umn.edu/93143
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Coping with Drought in Rice Farming in Asia: Insights from a Cross-Country Comparative Study AgEcon
Pandey, Sushil; Bhandari, Humnath; Ding, Shijun; Prapertchob, Preeda; Sharan, Ramesh; Naik, Dibakar; Taunk, Sudhir K.; Sastri, Asras.
Drought is a major constraint affecting rice production especially in rainfed areas of Asia. Despite its importance in rice growing areas, the magnitude of economic losses arising from drought, its impact on farm households and farmers' drought coping mechanisms are poorly understood. This paper provides insights into these aspects of drought based on a cross-country comparative analysis of rainfed rice growing areas in China, India and Thailand. The economic cost of drought is found to be substantially higher in eastern India than in the other two countries. Higher probability and greater spatial covariance of drought and less diversified farming systems with rice accounting for a large r share of household income are likely to be the main reasons for...
Tipo: Conference Paper or Presentation Palavras-chave: Drought; Economic cost; Coping mechanisms; Poverty; Crop Production/Industries; D1; I3; Q1.
Ano: 2006 URL: http://purl.umn.edu/25553
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Factors Influencing the Success Potential in Smallholder Irrigation Projects of South Africa: A Principal Component Regression AgEcon
Magingxa, Litha Light; Alemu, Zerihun Gudeta; van Schalkwyk, Herman D..
The objective of this paper is to examine the role of the factors expected to influence the success potential of small holder irrigation projects as they apply in the South African context. The study was conducted in six smallholder irrigation schemes in three provinces namely: Eastern Cape, Limpopo and Mpumalanga. To determine the farmers' potential success (dependent variable), a cluster analysis was conducted yielding two groups of farmers - the less successful and more successful. The principal component regression (PCR) tool was used to analyse the data and deal with the problem of multicollinearity, transforming the explanatory variables into principal component estimators. There were fourteen explanatory variables. Out of the nine statistically...
Tipo: Conference Paper or Presentation Palavras-chave: Success potential; Smallholder; South Africa; Irrigation projects; Principal component regression; Resource /Energy Economics and Policy; D1; O13; Q1.
Ano: 2006 URL: http://purl.umn.edu/25348
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Area-Wide Management of Fruit-Flies: What are the Costs and the Benefits? AgEcon
Florec, Veronique; Sadler, Rohan; White, Benedict.
Increasing volumes and speed of agricultural trade and the opening of new markets for agricultural products create greater challenges to systems established to protect countries from invasive organisms that can be harmful to human and animal health, crops and natural environments. In reaction to the threat of exotic pests and diseases, the World Trade Organization recognises the right of country members to protect themselves from the risks posed by exotic pests and diseases through the application of Sanitary and Phytosanitary (SPS) measures. One possible response from exporting countries facing SPS trade barriers is to obtain pest-free area (PFA) certification. While large benefits can potentially be achieved from greater access to world markets through...
Tipo: Working or Discussion Paper Palavras-chave: Eradication; Surveillance; Queensland Fruit Fly; Area-Wide Management of Pests; Pestfree area; Invasive species; Biosecurity; Agricultural and Food Policy; Crop Production/Industries; International Relations/Trade; Q1; Q17; Q18.
Ano: 2010 URL: http://purl.umn.edu/100881
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Bayesian networks as a tool to assess the multiple effects of agricultural policies in rural areas AgEcon
Raggi, Meri; Sardonini, Laura; Viaggi, Davide.
Many economic analysis tools are used to evaluate the effects of policies on rural development. However, a number of unexplored options are still available from the literature about policy analysis and biophysical systems representations. A particularly important need concerns the representation of the complexity of rural systems either in a static or dynamic framework In this paper we use Bayesian networks, to the best knowledge of the authors, basically ignored by the literature on rural development. The objective of this paper is to discuss the potential use of Bayesian Networks tools to represent the impact of the Common Agricultural Policies in rural areas.
Tipo: Conference Paper or Presentation Palavras-chave: Bayesian Networks (BNs); Farm-household; Exit; Community/Rural/Urban Development; Q1; Q18.
Ano: 2010 URL: http://purl.umn.edu/94911
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Determinants of Decision to Pay a Price Premium for Modified Food by Consumers of the Republic of Korea AgEcon
Kaya, Ozgur; Florkowski, Wojciech J.; Suh, Dong-Kyun.
The knowledge of the overall willingness-to-pay and the specific price premiums consumers accept when buying foods with less fat, saturated fat, sodium, sugar and more fiber shapes food manufacturer and distributor marketing strategies and supports the development of public health strategies. This study applies survey data collected in Korea to identify consumer profiles associated with the expressed willingness to pay a premium for foods with nutritionally desired attributes and, next, estimates the influence of consumer and household characteristics on the WTP a particular premium level for such foods. Results indicate the importance of socio-economic variables such as location, income and education, variables representing the risk of health problems...
Tipo: Conference Paper or Presentation Palavras-chave: Willingness to pay; Price premium; Modified food; Republic of Korea; Survey data; Logit; Generalized ordered logit; Agricultural and Food Policy; Consumer/Household Economics; Food Consumption/Nutrition/Food Safety; Health Economics and Policy; Q1; C3; D1.
Ano: 2010 URL: http://purl.umn.edu/61004
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Is Monsanto Leaving Money on the Table? Monopoly Pricing and Bt Cotton Value with Heterogeneous Adopters AgEcon
Oehmke, James F.; Wolf, Christopher A..
We examine the allocation of technology rents between a price-setting, innovating monopolist and heterogeneous technology adopters. A model of monopoly pricing in the presence of heterogeneous adopters is used to examine conditions under which greater producer (farmer) heterogeneity leads to greater producer benefit from innovation in non-competitive markets. An application to Bt cotton determines the profit-maximizing price of Bt cotton seed and reveals that Monsanto and Delta and Pine Land are indeed leaving money on the table in the form of unexploited profit opportunities. However, we estimate that the presence of heterogeneous adopters explains over 80% of the rents that accrue to the farmers.
Tipo: Journal Article Palavras-chave: Biotechnology; Bt cotton; Heterogeneous adopters; Innovation; Monopoly pricing; Technology; Valuation distribution; L1; O3; Q1.
Ano: 2004 URL: http://purl.umn.edu/43469
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Does Negative Information Always Hurt Meat Demand? An Examination of Avian Influenza Information Impacts on U.S. AgEcon
Mu, Jianhong H.; McCarl, Bruce A..
Consumers’ consumption patterns could be affected by food safety information, however, it is more important to consider where the food safety issue occurs. If the food safety issue happens in other countries, in other words, it outbreaks out of the target market, negative information may be beneficial; in contrast, if the food safety issue occurs within the market, results may consistent with previous studies. Based on this assumption, this paper reinvestigates the impacts of AI media coverage and BSE cases on the demand of meat in U.S. market. Estimated results provide supports for our assumption, i.e., AI information has positive effect on poultry and turkey demands in short term, and BSE affect beef demand negatively.
Tipo: Conference Paper or Presentation Palavras-chave: Avian influenza media coverage; AI human case; BSE announcements; AIDS model; Meat demand; Agricultural and Food Policy; Consumer/Household Economics; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Health Economics and Policy; Q1.
Ano: 2010 URL: http://purl.umn.edu/116450
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Optimal control of spatial-dynamic processes: The case of biological invasions AgEcon
Epanchin-Niell, Rebecca S.; Wilen, James E..
This study examines the spatial nature of optimal bioinvasion control. We develop and parameterize a spatially explicit two-dimensional model of species spread that allows for differential control across space and time, and we solve for optimal control strategies. We find that the qualitative nature of optimal strategies depend in interesting ways on aspects of landscape and invasion geometry. For example, we show that reducing the extent of exposed invasion edge, through spread, removal, or strategically employing landscape features, can be an optimal strategy because it reduces long-term containment costs. We also show that optimal invasion control is spatially and temporally “forward-looking” in the sense that strategies should be targeted to slow the...
Tipo: Conference Paper or Presentation Palavras-chave: Invasive species; Spatial-dynamic processes; Spatial spread; Reaction-diffusion; Management; Cellular automaton; Eradication; Containment; Spatial control; Integer programming; Environmental Economics and Policy; Land Economics/Use; Resource /Energy Economics and Policy; Q; Q1; Q2; Q5.
Ano: 2010 URL: http://purl.umn.edu/61375
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An Optimal Surveillance Measure Against Foot-and-Mouth Disease in the United States AgEcon
van Ha, Pham; Che, Tuong Nhu; Kompas, Tom.
Surveillance programs on farms and in the local environment provide an essential protection against the importation and spread of exotic diseases. Combined with border quarantine measures, these programs protect both consumers and producers from major health concerns and disease incursions that can potentially destroy local agricultural production and supporting industries, as well as generate substantial losses in trade and tourism. However, surveillance programs also impose costs in the form of expenditures on the surveillance program itself, along with the costs of disease management and eradication should an incursion occur. Taking border quarantine expenditures as given, this paper develops a stochastic optimal control model (with a jump-diffusion...
Tipo: Conference Paper or Presentation Palavras-chave: Surveillance measures; Border quarantine; Disease incursion and spread; Foot- and-Mouth disease; Stochastic optimal control; Livestock Production/Industries; Q1; Q17; Q18.
Ano: 2007 URL: http://purl.umn.edu/10354
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Assessing Consumer Preferences for Organically Grown Fresh Fruit and Vegetables in Eastern New Brunswick AgEcon
Haghiri, Morteza; Hobbs, Jill E.; McNamara, Meaghan L..
www.ifama.org
Tipo: Journal Article Palavras-chave: Consumer preferences; Organic fresh produce; Willingness-to-pay; Consumer/Household Economics; Crop Production/Industries; Demand and Price Analysis; Q1.
Ano: 2009 URL: http://purl.umn.edu/92556
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Using Value Priorities to Explain Differences in Attitudes towards Genetically Modified Food AgEcon
Springer, A.; Tsioumanis, Asterios; Papastefanou, G.; Mattas, Konstadinos.
During the last few years the public has become in general more ambivalent towards new technologies and while expecting technological innovation to make their life better, they still old concerns about possible adverse effects deriving from the use of these technologies. The present paper offers a comparative approach on two European member countries concerning attitudes towards genetically modified food. The paper focus on values because previous research has shown that socio-economic factors can only partially explain differences in attitudes towards genetically modified food. Strong national differences lead to the idea that cultural differences should also be taken into account. Following the approach of Schwartz, the scope of this research paper is to...
Tipo: Conference Paper or Presentation Palavras-chave: Attitudes towards genetically modified food; Attitude formation; Cultural differentiation; Value; Consumer/Household Economics; Q1; Z1.
Ano: 2005 URL: http://purl.umn.edu/24657
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Effects of Manure Use and Use Restrictions on Variable Production Costs and Net Incomes for U.S. Corn Producers AgEcon
Beckman, Jayson F.; Livingston, Michael J..
We utilize a treatment effects model to examine if there are differences in costs/profits for manure-using corn producers versus non-users. We find that manure users have lower peracre operating costs via reductions in fertilizer and soil conditioner costs; however, the use of manure reduces grain yields and ultimately leads to no difference in profit. Separate results indicate that manure-use restrictions do not affect costs or profits; thus policies could be in place to regulate manure usage without impacting the costs/profit structure of the farm.
Tipo: Article Palavras-chave: Nutrient management; Treatment effects; Micro-data; Environmental Economics and Policy; Farm Management; Q1.
Ano: 2012 URL: http://purl.umn.edu/120450
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Optimal Control of Spreading Biological Invasions: For How Long Should We Apply the Brake? AgEcon
Carrasco, Luis Roman; MacLeod, Alan; Knight, John D.; Baker, Richard; Mumford, John D..
Identifying the optimal switching point between different invasive alien species (IAS) management policies is a very complex task and policy makers are in need of modelling tools to assist them. In this paper we develop an optimal control bioeconomic model to estimate the type of optimal policy and switching point of control efforts against a spreading IAS. We apply the models to the case study of Colorado potato beetle in the UK. The results demonstrate that eradication is optimal for small initial sizes of invasion at discovery. High capacity of the agency to reduce spread velocity for several years leads to smaller total overall costs of invasion and makes eradication optimal for larger sizes of initial invasion. In many cases, it is optimal to switch...
Tipo: Conference Paper or Presentation Palavras-chave: Barrier zone; Biosecurity; Dynamic optimization; Eradication; Leptinotarsa decemlineata; Pest risk analysis; Reaction-diffusion.; Risk and Uncertainty; Q1; Q28; Q57.
Ano: 2009 URL: http://purl.umn.edu/50940
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