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Registros recuperados: 31
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A MODEL OF DEVELOPMENT OF AGRICULTURAL BIOTECHNOLOGICAL INNOVATIONS: PATENT POLICY ANALYSIS AgEcon
Nadolnyak, Denis A.; Sheldon, Ian M..
In this paper, peculiarities of the process of development of agricultural biotechnological innovations are considered, in particular the distinction between R&D races for gene discoveries and subsequent competition for developing their marketable applications in the form of genetically modified (GM) crops, the results of which determine the payoffs of discovering a gene. A formal two-stage model is specified and analyzed with regard to how different patent protection regimes and other government policies affect firm's’ R&D strategies and the welfare realized from an innovation. We find that different policy measures affect the outcomes of the two stages of biotechnological innovation differently, which leaves some ambiguity as to which patent...
Tipo: Conference Paper or Presentation Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 2002 URL: http://purl.umn.edu/19802
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A Model of Diffusion of Genetically Modified Crop Technology in Concentrated Agricultural Processing Markets - The Case of Soybeans AgEcon
Nadolnyak, Denis A.; Sheldon, Ian M..
In the paper, a dynamic model of diffusion of genetically modified crop technology is developed and simulated using the U.S. soybean market data. The model accounts for factors specific to agricultural markets, such as oligopsony power and strategic interaction among crop processors, growers' characteristics such as adoption behavior, and identity preservation requirements. Simulation results show how these factors affect the magnitude and distribution of the potential gains from genetically modified crops.
Tipo: Conference Paper or Presentation Palavras-chave: Biotechnology in agriculture; Soybeans; Innovation diffusion; Oligopsony; Genetically modified crop; Consumer/Household Economics.
Ano: 2002 URL: http://purl.umn.edu/24872
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Accommodating Imperfect Competition in A Model of World Peanut Trade AgEcon
Fletcher, Stanley M.; Nadolnyak, Denis A..
In this paper, we make an attempt to rationalize the strategic behavior of major peanut exporting and importing countries in the framework of imperfectly competitive markets with the focus on the global and inter-American peanut trade. This study is motivated by the fact that liberalizing imperfectly competitive and often distorted markets can have unorthodox effects, in particular increase the incentives to overuse certain trade policies. The results suggest that the South American peanut producers stand to benefit from the reductions in the U.S. peanut production supports but, paradoxically, preservation of a tariff may still be mutually welfare enhancing. In the broader context of global peanut trade, multi-lateral tariff reduction increases the...
Tipo: Conference Paper or Presentation Palavras-chave: Trade; Peanuts; Strategic behavior; Tariffs; TRQs; Subsidies; International Relations/Trade.
Ano: 2005 URL: http://purl.umn.edu/19460
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Analysis of Irrigated Corn Production Adoption Decisions in Alabama AgEcon
Novak, James L.; Nadolnyak, Denis A.; McNider, Richard.
Expanding ethanol markets, abundance of water resources, and predominance of rainfed corn production in Alabama suggest possibility of irrigating cornfields. Numerical analysis shows that irrigated production becomes more preferable with higher corn prices and risk aversion. Adoption threshold is estimated at the price below its current level.
Tipo: Conference Paper or Presentation Palavras-chave: Agribusiness; Crop Production/Industries; Land Economics/Use.
Ano: 2008 URL: http://purl.umn.edu/6756
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Biotechnology and International Competitiveness: Implications for Southern U.S. Agriculture: Discussion AgEcon
Fletcher, Stanley M.; Nadolnyak, Denis A..
Tipo: Journal Article
Ano: 2005 URL: http://purl.umn.edu/43515
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Can Rank-Order Tournaments Improve Efficiency of Quality Differentiated Crop Markets Under Marketing Loan Program Operation? The Case of U.S. Peanuts. AgEcon
Nadolnyak, Denis A.; Fletcher, Stanley M.; Revoredo-Giha, Cesar.
In the paper, alternative contractual arrangements between crop producers and processors are evaluated with a view of addressing the major issues present in peanut markets in the U.S., the major EU supplier of high quality peanuts. The issues are the thinness of the spot markets and the absence of quality premiums, both of which impair market efficiency. Results indicate that introducing contracts with a system of quality differentials creates incentives for producer self-selection to participate in the post harvest cash market. Moreover, in the presence of sufficiently high common production risk, tournament contracts are more efficient and preferred by the producers than the standard fixed premium schedules.
Tipo: Conference Paper or Presentation Palavras-chave: Contracts; Tournaments; Efficiency; Spot markets; Peanuts; Marketing.
Ano: 2005 URL: http://purl.umn.edu/24703
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Climate Effects on Rainfall Index Insurance Purchase Decisions AgEcon
Novak, James L.; Nadolnyak, Denis A..
Rainfall Index (RI) insurance provides forage and hay producers with group risk protection against drought related losses. However, insurance premiums and risk protection are currently based on pooled weather data series and do not account for the impacts of specific climate phases, specifically the El Niño Southern Oscillation (ENSO), on local rainfall distribution. This analysis examines differences in the expected payoffs on the RI insurance under varying coverage levels based on probabilities of rainfall shortage during specific climate events at four Agricultural Experiment Stations in Alabama. Policy makers and producers are expected to benefit from the results that show the varying effects of climate on expected payouts from this insurance.
Tipo: Journal Article Palavras-chave: Risk and Uncertainty.
Ano: 2010 URL: http://purl.umn.edu/96368
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Climate Effects on Rainfall Index Insurance Purchase Decisions AgEcon
Novak, James L.; Nadolnyak, Denis A..
Rainfall Index insurance is a pilot insurance product offered to producers of hay and pasture in 9 states. This analysis examines the expected payoff of the RI insurance for bi-monthly periods based on rainfall shortage probabilities in alternative climate phases. Differences in expected returns indicate that selection of ENSO-specific optimal intervals may result in higher returns than those based on pooled rainfall series.
Tipo: Conference Paper or Presentation Palavras-chave: Rainfall insurance; ENSO; Expected indemnity; Production Economics; Risk and Uncertainty.
Ano: 2008 URL: http://purl.umn.edu/46834
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Contract Marketing after the 2002 Farm Act: The Case of Peanuts AgEcon
Revoredo-Giha, Cesar; Nadolnyak, Denis A.; Fletcher, Stanley M..
The elimination of the marketing quota system that regulated the peanut market since the 1930s has been accompanied by the emergence of marketing contracts between farmers and peanut buyers (mainly peanut shellers). Two types of contracts have been observed, forward contracts for delivery at harvest or at a later date and "option to purchase" contracts. We analyze the clauses of contracts used by major shellers in order to infer the motivation behind these contracts (i.e., risk sharing, reduction of transaction costs, improve coordination, exercise of market power, etc.). The analysis points out that the main role of the contracts is to replace the marketing structure existing prior the 2002 Farm Act, where peanut marketing was quite regulated. In this...
Tipo: Conference Paper or Presentation Palavras-chave: Marketing.
Ano: 2005 URL: http://purl.umn.edu/19187
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CONTRACT MARKETING IN THE US AFTER THE 2002 FARM ACT: THE CASE OF PEANUTS AgEcon
Revoredo-Giha, Cesar; Nadolnyak, Denis A.; Fletcher, Stanley M..
The elimination of the marketing quota system that regulated the peanut market since the 1930s has been accompanied by the emergence of marketing contracts between farmers and peanut buyers (mainly peanut shellers). Two types of contracts have been observed, forward contracts for delivery at harvest or at a later date and “option to purchase” contracts. We analyze the clauses of contracts used by major shellers in order to infer the motivation behind these contracts (i.e., risk sharing, reduction of transaction costs, improve coordination, exercise of market power, etc.). The analysis points out that the main role of the contracts is to replace the marketing structure existing prior the 2002 Farm Act, where peanut marketing was quite regulated. In this...
Tipo: Working or Discussion Paper Palavras-chave: US agriculture; Agricultural marketing; Peanuts; Economics of agricultural contracts.; Agricultural and Food Policy; Crop Production/Industries; Marketing.
Ano: 2005 URL: http://purl.umn.edu/31930
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Crop Contracts versus Spot Markets under the Marketing Assistance Loan Program: The Case of Peanuts AgEcon
Nadolnyak, Denis A.; Revoredo-Giha, Cesar; Fletcher, Stanley M..
We analyze two types of crop marketing contracts between agricultural producers and processors, delivery-at-harvest and an "option-to-purchase" that emerged in US peanut market after the 2002 Farm Act. This contract structure is interpreted as a marketing strategy trying to fill the gap left by the former quota system.
Tipo: Conference Paper or Presentation Palavras-chave: Marketing.
Ano: 2005 URL: http://purl.umn.edu/35585
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Designing Rainfall Insurance Contracts for Pasture, Rangeland, and Forage AgEcon
Nadolnyak, Denis A.; Vedenov, Dmitry V..
In the paper, preliminary results of the analysis of potential use of climate forecast information in designing rainfall index insurance in the southeastern region of the U.S. are reported. Joint distributions of bi-monthly rainfall and El Nino Southern Oscillation (ENSO) indexes are estimated using copula analysis of historical data. The risk reducing effectiveness of introducing premiums conditional on ENSO forecast is evaluated. The results indicate some dependence of the downward volatility of rainfall on the lagged ENSO (forecast) index, particularly in the coastal areas and in the late winter and spring.
Tipo: Conference Paper or Presentation Palavras-chave: Rainfall index insurance; ENSO; Copulas; Agricultural Finance; Research Methods/ Statistical Methods; Risk and Uncertainty; Q14; Q54.
Ano: 2010 URL: http://purl.umn.edu/56511
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Determinants of Agricultural Disaster Payments in the Southeastern U.S.: County Level Analysis AgEcon
Nadolnyak, Denis A.; Novak, James L..
Using county level data we study if weather and climate variables or variables used as proxies for rent-seeking behavior determine disaster payment in the Southeast. We do not find evidence of rent-seeking but find that, in addition to weather, long term climate variables affect disaster payments.
Tipo: Conference Paper or Presentation Palavras-chave: Farm Management; Risk and Uncertainty.
Ano: 2008 URL: http://purl.umn.edu/6554
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Determinants of Agricultural Disaster Payments in the Southeastern U.S.: County Level Analysis AgEcon
Nadolnyak, Denis A..
This paper evaluates the relevance of weather and climate data in explaining county-level crop disaster payments in Georgia. Following previous research, regional socio-economic and community data are also used to control for factors other than weather. While weather and ENSO data explain the payments well, available economic variables do not.
Tipo: Conference Paper or Presentation Palavras-chave: Environmental Economics and Policy; Public Economics.
Ano: 2008 URL: http://purl.umn.edu/6733
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DOES THE REDUCTION IN PEANUT PRICES BENEFIT PEANUT BUTTER CONSUMERS? AgEcon
Revoredo-Giha, Cesar; Nadolnyak, Denis A.; Fletcher, Stanley M..
Using monthly data, we find evidence of both short- and long-run asymmetry of price transmission from peanut to peanut butter prices. This suggests that the asymmetry is more likely a result of imperfect competition than of competitive profit maximizing inventory management. Effects of producer support policy changes are discussed.
Tipo: Conference Paper or Presentation Palavras-chave: Consumer/Household Economics.
Ano: 2004 URL: http://purl.umn.edu/34700
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ESTIMATING PEANUT PRODUCTION EFFICIENCY AND ASSESSING AgEcon
Nadolnyak, Denis A.; Hartarska, Valentina M.; Fletcher, Stanley M..
The paper presents preliminary results of the analysis of cost efficiency of peanut production in the South-Eastern region utilizing data from the 2001 Peanut Farm Costs and Returns Survey. Stochastic cost frontier analysis using both Cobb-Douglas and translog functional forms is used as the most suitable given data availability and the nature of the industry. Estimation results are used in a discussion of the likely farm-level effects of the 2002 Farm Act, which substituted quota support with marketing assistance loan program. Contrary to our expectations, quota ownership did not significantly affect cost efficiency, which implies that quota ownership is not a discriminating factor in considering the effects of the Farm Act. Other producer...
Tipo: Conference Paper or Presentation Palavras-chave: Crop Production/Industries.
Ano: 2004 URL: http://purl.umn.edu/20126
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Estimating Vulnerability of U.S. Peanut Producers to Changes in Farm Support AgEcon
Nadolnyak, Denis A.; Fletcher, Stanley M..
In the paper, we make an attempt to estimate the supply of farmer stock peanuts in the Southeastern Region of the U.S. and evaluate production effects of the recent changes in farm support policies and of trade liberalization that have affected prices. The choice of estimation methodology is dictated by the unavailability of suitable time-series data due to heavily regulated nature of the U.S. peanut markets before 2002. Supply estimation is performed by estimating farm-level supply using cross-sectional survey data on farm-level costs and returns. Results show that producers not able to expand peanut acreage are likely to be vulnerable to price reductions, as there might exist economies of scale. Production on dry land is likely to remain unprofitable at...
Tipo: Conference Paper or Presentation Palavras-chave: Agricultural and Food Policy.
Ano: 2005 URL: http://purl.umn.edu/19287
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EXPLAINING PRICE TRANSMISSION ASYMMETRY IN THE US PEANUT MARKETING CHAIN AgEcon
Revoredo-Giha, Cesar; Nadolnyak, Denis A.; Fletcher, Stanley M..
n the paper, we study price transmission from wholesale peanut prices to retail peanut butter prices. Using monthly data since 1984, we show that, while an increase in peanut prices is almost immediately transferred to peanut butter prices, it takes several months for a price decrease to be reflected in the peanut butter prices. Besides, the long term price transmission effect also appears to be symmetric. The observed short and long-term asymmetry is explained as a result of profit maximizing inventory management and/or some degree of market power in peanut processing.
Tipo: Conference Paper or Presentation Palavras-chave: Marketing.
Ano: 2004 URL: http://purl.umn.edu/20363
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Financing Constraints and Access to Credit in Post Crisis Environment: Evidence from New Farmers in Alabama AgEcon
Hartarska, Valentina M.; Nadolnyak, Denis A..
We use survey data to study the level of financing constrains faced by new farmers in Alabama post 2008, and identify who got loans. We find that new farmers are financially constrained but not impacted by the crisis. Lending was collateral driven, although lenders also considered profitability and cash flows.
Tipo: Presentation Palavras-chave: Financing constraints; Access to agricultural credit; New farmers; Agricultural Finance; Financial Economics; Risk and Uncertainty; G31; Q12; Q14.
Ano: 2012 URL: http://purl.umn.edu/119799
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Identifying ENSO Phase Impacts on Area Yield Insurance Rates: An Application of Non-Parametric Analysis AgEcon
Nadolnyak, Denis A.; Novak, James L.; Paz, Joel O..
The paper reports results of non-parametric analysis of peanut, corn, and cotton yield distributions by the ElNino Southern Oscillation (ENSO) phases in the Southeastern U.S. For validation purposes, the historical yield data is complemented by a set of simulated peanut yields generated using daily weather data. The hypothesis, justified by the observed South-Eastern climate differences and research on ENSO cycles and planting dates, is that different climate conditions during ENSO cycles translate into different yield distributions and, therefore, insurance premiums (loss to coverage ratios). Kernel density estimates of historical county yield data show consistent patterns in the actuarially fair rate schedules grouped by ENSO phases and geographical...
Tipo: Conference Paper or Presentation Palavras-chave: Risk and Uncertainty; Q140; C220; G220.
Ano: 2007 URL: http://purl.umn.edu/9718
Registros recuperados: 31
Primeira ... 12 ... Última
 

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