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Economic Comparison of Commodity and Conservation Program Benefits: An Example from the Mississippi Delta AgEcon
Anderson, John D.; Parkhurst, Gregory M..
Changes to commodity programs in the 2002 Farm Bill increased the value of crop base acreages on which decoupled payments are received. The bill also expanded the availability of key conservation programs. This paper compares the value of payments from commodity programs (along with continued crop production) to the easement payment (and recreational lease revenue) available under the Wetland Reserve Program. A net present value model using risk-adjusted returns is employed in the analysis for Mississippi delta cropland containing rice, cotton, and soybean base. Sensitivity analysis is conducted on some of the key variables affecting the decision.
Tipo: Journal Article Palavras-chave: Conservation; Countercyclical payment; Direct payment; Net present value; WRP; Q12; Q15; Q18; C15.
Ano: 2004 URL: http://purl.umn.edu/43390
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Cointegration Analysis of Commodity Prices: Much Ado about the Wrong Thing? AgEcon
Mallory, Mindy L.; Lence, Sergio H..
This study highlights some problems with using the Johansen cointegration statistics on data containing a negative moving average (NMA) in the error term of the data generating process. We use a Monte Carlo experiment to demonstrate that the asymptotic distribution of the Johansen cointegration statistics is sensitive to the NMA parameters and that using the stated 5% critical values results in severe size distortion. In our experiment, using the asymptotic critical values resulted in empirical size of 76% in the worst case. To date a NMA in the error term was known to cause poor small sample performance of the Johansen cointegration statistics; however our study demonstrates that problems associated with a NMA in the error term do not improve as sample...
Tipo: Conference Paper or Presentation Palavras-chave: Cointegration; Johansen cointegration test; Moving average; Agricultural Finance; Financial Economics; C32; C15.
Ano: 2010 URL: http://purl.umn.edu/61721
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Production Inefficiency in Fed Cattle Marketing and the Value of Sorting Pens into Alternative Marketing Groups Using Ultrasound Technology AgEcon
Koontz, Stephen R.; Hoag, Dana L.; Brethour, John R.; Walker, Jodine L..
The cattle industry batch markets animals in pens. Because of this, animals within any one pen can be both underfed and overfed. Thus, there is a production inefficiency associated with batch marketing. We simulate the value of sorting animals through weight and ultrasound measurements from original pens into smaller alternative marketing groups. Sorting exploits the production inefficiency and enables cattle feeding enterprises to avoid meat quality discounts, capture premiums, more efficiently use feed resources, and increase returns. The value of sorting is between $15 and $25 per head, with declining marginal returns as the number of sort groups increases.
Tipo: Journal Article Palavras-chave: Cattle feeding; Production efficiency; Simulation; Sorting; Value-based marketing; Ultrasound; Agribusiness; Livestock Production/Industries; Marketing; Research and Development/Tech Change/Emerging Technologies; C15; D21; D23; Q12.
Ano: 2008 URL: http://purl.umn.edu/47266
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Targeting the poor and smallholder farmers: empirical evidence from Malawi AgEcon
Houssou, Nazaire; Zeller, Manfred.
This paper develops low cost, reasonably accurate, and simple models for improving the targeting efficiency of development policies in Malawi. Using a stepwise logistic regression (weighted) along with other techniques applied in credit scoring, the research identifies a set of easily observable and verifiable indicators for correctly predicting whether a household is poor or not, based on the 2004-05 Malawi Integrated Household Survey data. The predictive power of the models is assessed using out-of-sample validation tests and receiver operating characteristic curves, whereas the model’s robustness is evaluated by bootstrap simulation methods. Finally, sensitivity analyses are performed using the international and extreme poverty lines. The models...
Tipo: Working or Discussion Paper Palavras-chave: Malawi; Poverty targeting; Proxy means tests; Out-of-sample tests; Bootstrap; Food Security and Poverty; Research Methods/ Statistical Methods; I32; C15.
Ano: 2009 URL: http://purl.umn.edu/57988
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Plagiarism Without Apology--Systematic Integration of Available Information in a Long Run Agricultural Outlook AgEcon
Witzke, Heinz Peter; Britz, Wolfgang.
In the context of a long run agricultural outlook on behalf of the European Environmental Agency a new methodology has been developed to systematically integrate external forecasts into a quite detailed agricultural sector model. External forecasts usually provide estimates for the exogenous variables in modelling work and frequently they are also used for comparisons and potential reassessment of empirical specifications. The innovative characteristic of this study is that expert forecasts have been used to specify parameter changes expressing structural change affecting behavioural functions. The outlook was therefore set up as a simultaneous estimation and forecasting effort which permitted to integrate various, usually contradictory expert forecasts...
Tipo: Conference Paper or Presentation Palavras-chave: Agricultural outlook; Forecasting; Modelling; Expert information; Agricultural and Food Policy; C15; C53; Q11; Q19; Q21.
Ano: 2005 URL: http://purl.umn.edu/24666
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Consumer's WTP for Environment-Friendly Production Methods and Collective Reputation for Place of Origin: The Case of Val di Gresta's Carrots AgEcon
Scarpa, Riccardo; Thiene, Mara; Marangon, Francesco.
This paper investigates preferences for various environment-friendly production system for carrots using discretechoice multi-attribute stated-preference data amongst buyers and explore the effect of collective reputations from growers of an Alpine valley known to be completely dedicated to organic production. Results show that buyers distinctly recognize only organic production as a production system different from the conventional one, and there is some evidence of recognition of collective reputation. As well as for marginal utility of income, substantial unobserved heterogeneity is found for many skin imperfections, origin from the organic Alpine valley and the organic production methods. The implied sample distributions of WTP for each of these random...
Tipo: Conference Paper or Presentation Palavras-chave: Choice modelling; Mixed logit; Organic products; Marginal utility of income; Unobserved taste heterogeneity; Status-quo bias; Heteroskedasticity; Crop Production/Industries; Environmental Economics and Policy; C15; C25; Q13; Q18.
Ano: 2006 URL: http://purl.umn.edu/25637
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Grain Contracting Strategies to Induce Delivery and Performance in Volatile Markets AgEcon
Wilson, William W.; Dahl, Bruce L..
One of the impacts of higher prices along with greater volatility in futures and basis is that there is pressure for an escalation in cash contracting for grain. This volatility has resulted in an unprecedented level of contracting with growers in recent years. There is a wide array of cash contracts with varying terms. There is also a growing realization of growers not delivering on contracts, in part due to escalation in postcontract prices. These are evolving as major strategic issues for buyers and the marketing system, particularly as buyers seek to use such contracting strategies as an element of risk mitigation. There are three purposes of this article. First is to provide a broad survey of contract terms used in grain contracting with growers....
Tipo: Journal Article Palavras-chave: Grain contracting; Risk; Volatility; Agribusiness; Crop Production/Industries; Farm Management; Production Economics; Risk and Uncertainty; C15; D81; Q12.
Ano: 2009 URL: http://purl.umn.edu/53082
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Grain Contracting Strategies to Induce Delivery and Performance in Volatile Markets AgEcon
Wilson, William W..
One of the impacts of higher prices along with greater volatility in futures and basis is that there is pressure for an escalation in cash contracting for grain. This volatility has resulted in an unprecedented level of contracting with growers for specific purchases in recent years. There is a wide array of cash contracts with varying terms. Beyond that array, there is also a growing realization of growers not delivering on contracts, in part due to escalation in post-contract prices. This realization is evolving as a major strategic issue for buyers and the marketing system, particularly as buyers seek to use such contracting strategies as an element of risk mitigation. There are three purposes of this article. First is to provide a broad survey of...
Tipo: Report Palavras-chave: Crop Production/Industries; Farm Management; Financial Economics; C15; D81; Q12.
Ano: 2009 URL: http://purl.umn.edu/55084
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HEDONIC PRICE FUNCTIONS: GUIDANCE ON EMPIRICAL SPECIFICATION AgEcon
Kuminoff, Nicolai V.; Parmeter, Christopher F.; Pope, Jaren C..
The hedonic pricing model is widely accepted as a method for estimating the marginal willingness to pay for spatially delineated amenities. Empirical applications typically rely on one of three functional forms—linear, semi-log, and double-log—and rarely involve rigorous specification testing. This phenomenon is largely due to an influential simulation study by Cropper, Deck and McConnell (CDM) (1988) that found, among other things, that simpler linear specifications outperformed more flexible functional forms in the face of omitted variables. In the 20 years that have elapsed since their study, there have been major computational advances and significant changes in the way hedonic price functions can be estimated. The purpose of our paper is to update and...
Tipo: Conference Paper or Presentation Palavras-chave: Hedonic; Functional Form; Monte Carlo Simulation; Property Value Model; Demand and Price Analysis; Land Economics/Use; Research Methods/ Statistical Methods; Q15; Q51; Q53; C15; R52.
Ano: 2008 URL: http://purl.umn.edu/6555
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A Robust Multivariate Long Run Analysis of European Electricity Prices AgEcon
Bosco, Bruno; Parisio, Lucia; Pelagatti, Matteo; Baldi, Fabio.
This paper analyses the interdependencies existing in wholesale European electricity prices. The results of a multivariate long run dynamic analysis of weekly median prices reveal the presence of a strong although not perfect integration among some neighboring markets considered in the sample and the existence of common long-term dynamics of electricity prices and gas prices but not oil prices. The existence of long-term dynamics among gas prices and electricity prices may prove to be important for long-term hedging operations to be conducted even in markets where there are no electricity derivatives.
Tipo: Working or Discussion Paper Palavras-chave: European Electricity Prices; Cointegration; Interdependencies; Equilibrium Correction Model; Oil Prices; Resource /Energy Economics and Policy; C15; C32; D44; L94; Q40.
Ano: 2007 URL: http://purl.umn.edu/7438
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Looking for Rational Bubbles in Agricultural Commodity Markets AgEcon
Gutierrez, Luciano.
In this paper, we use a bootstrap methodology to helps us to compute the finite sample probability distribution of the asymptotic tests recently proposed in Phillips et al. (2009b) and Phillips and Yu (2009c). Simulation shows that the bootstrap methodology works well and allows us to identify explosive processes and collapsing bubbles. We apply the bootstrap procedure to the wheat and rough rice commodity prices. We find some evidence of price exuberance for both prices in the 2007-2008 period.
Tipo: Presentation Palavras-chave: Rational Speculative Bubbles; Bootstrap; Unit Root Tests; Commodity Prices.; Marketing; G14; Q14; C12; C15.
Ano: 2011 URL: http://purl.umn.edu/120377
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Financial and Risk Management Assistance: Decision Support for Agriculture AgEcon
Klose, Steven L.; Outlaw, Joe L..
The Financial and Risk Management (FARM) Assistance program created by Texas Cooperative Extension is a strategic analysis service offered to farmers and ranchers in Texas. The program serves as an example of large-scale, focused programming by extension agencies, as well as the implementation of technical stochastic simulation methods for use on the farm.
Tipo: Journal Article Palavras-chave: Decision information; Decision support system; Extension programming; Farm level analysis; Outreach; Simulation; Q16; Q12; C15; D83.
Ano: 2005 URL: http://purl.umn.edu/43516
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A Bayesian Total Factor Productivity Analysis of Tropical Agricultural Systems in Central-Western Africa And South-East Asia AgEcon
Tonini, Axel; Matus, Silvia Saravia; Gomez y Paloma, Sergio.
This paper computes and analyses total factor productivity (TFP) growth rates for tropical agricultural systems in Central-Western Africa and South-East Asia. Two regions that despite sharing common agro-ecological conditions, have pursued different adoption rates of green revolution technology and have reported dissimilar yields per hectare. A panel data set is constructed for the period 1987-2007 from the FAOSTAT database. A Bayesian stochastic frontier model with country specific temporal variation in technical efficiency is estimated. Technical efficiency estimates reveal that there is substantial room for improvement in both continental sub-sets and that TFP estimates show on average larger rates of growth for South-East Asian countries as compared to...
Tipo: Conference Paper or Presentation Palavras-chave: Bayesian Inference; Stochastic Production Frontier; Time Varying Technical Inefficiency; Total Factor Productivity Growth; Tropical Agricultural Systems; Farm Management; Productivity Analysis; C15; D24; O47.
Ano: 2011 URL: http://purl.umn.edu/116088
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Web Delivery of a Monte Carlo Simulation Model: The Base and Yield Analyzer Experience AgEcon
Richardson, James W.; Outlaw, Joe L..
The provision for producers to update base acres and payment yields in the 2002 farm bill afforded an opportunity to test whether it was feasible to deliver a complex simulation model directly to producers. A Monte Carlo simulation model for assessing the economic impacts of the alternative base and yield options on individual farms was developed and made available to producers via the World Wide Web. The experiences and challenges from this collaborative extension and research effort are described, as well as the issues educators might consider before delivering complex software to a national audience via the Web.
Tipo: Journal Article Palavras-chave: Base and yield update; 2002 farm bill; Monte Carlo simulation; C15; D83; Q12; Q16.
Ano: 2005 URL: http://purl.umn.edu/43517
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The Takayama and Judge Price and Allocation Models and its application in non-linear Price Transmission Analysis Approaches AgEcon
Araujo-Enciso, Sergio Rene.
Tipo: Working or Discussion Paper Palavras-chave: Demand and Price Analysis; Research Methods/ Statistical Methods; C15; C18; C62.
Ano: 2011 URL: http://purl.umn.edu/103432
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Standard and Shuffled Halton Sequences in a Mixed Logit Model AgEcon
Staus, Alexander.
Modeling consumer choice in different areas has lead to an increase use of discrete choice models. Probit or Multinomial Logit Models are often the base of further empirical research of consumer choice. In some of these models the equations to solve have no closed-form expression. They include multi-dimensional integrals which can not be solved analytically. Simulation methods have been developed to approximate a solution for these integrals. This paper describes the Standard Halton sequence and a modification of it, the Shuffled Halton sequence. Both are simulation methods which can reduce computational effort compared to a random sequence. We compare the simulation methods in their coverage of the multi-dimensional area and in their estimation results...
Tipo: Working or Discussion Paper Palavras-chave: Simulation; Mixed logit; Halton sequence; Consumer/Household Economics; Food Consumption/Nutrition/Food Safety; C15; C25.
Ano: 2008 URL: http://purl.umn.edu/93856
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Analyzing Producer Preferences for Counter-Cyclical Government Payments AgEcon
Miller, J. Corey; Barnett, Barry J.; Coble, Keith H..
A dynamic-stochastic model is developed to evaluate preferences among alternative countercyclical payment programs for representative farms producing corn or soybeans in Iowa and cotton or soybeans in Mississippi. Countercyclical payment programs are found to not necessarily be preferred to fixed payment programs.
Tipo: Journal Article Palavras-chave: Agricultural policy; Bootstrapping; Countercyclical payments; Nonparametric; C15; D81; Q12; Q18.
Ano: 2003 URL: http://purl.umn.edu/43203
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Georeferenced Assessment of Trade Liberalization Effects on Agriculture in Ecuador AgEcon
Ludena, Carlos E.; Schuschny, Andres; de Miguel, Carlos; Duran Lima, Jose E..
As the use of global and national computable general equilibrium (CGE) models has become more widespread, most policies still remain at the regional or sub-national level. This level of disparity requires an approach that bridges the gap between national results and sub-national policies. This study provides a methodology that combines micro-level information and the results of a CGE model with geographical information to spatially map the effects of trade liberalization on the agricultural sector. This methodology enables to distribute changes in value of production for each production unit according to the importance of a specific crop in the political administrative unit. These results show the geographic effects of the FTA on Ecuador's agriculture, and...
Tipo: Conference Paper or Presentation Palavras-chave: Geographic Information Systems (GIS); Computable general equilibrium (CGE); Trade liberalization; Agriculture; Agricultural and Food Policy; International Relations/Trade; C15; R12; Q17.
Ano: 2009 URL: http://purl.umn.edu/50556
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Two Ways of Estimating a Transport Model AgEcon
Jansson, Torbjorn.
In this article, it is shown how the parameters of a transport model can be estimated in a way that, in contrast to previously used methods, utilizes observations of regional prices as well as of trade costs. The proposed method uses bi-level programming to minimize a weighted least squares’ criterion under the restriction that the estimated parameters satisfy the Kuhn-Tucker conditions for an optimal solution of the transport model. We use Monte-Carlo simulations to trace out some properties of the estimator and compare it with a traditional calibration method. The analysis shows that the proposed technique estimates prices as well as trade costs more efficiently.
Tipo: Working or Discussion Paper Palavras-chave: Spatial equilibrium; Transport model; Bi-level programming; Research Methods/ Statistical Methods; C15; F11.
Ano: 2005 URL: http://purl.umn.edu/18787
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Meta Analysis in Model Implementation: Choice Sets and the Valuation of Air Quality Improvements AgEcon
Banzhaf, H. Spencer; Smith, V. Kerry.
We document the sensitivity of welfare estimates derived from discrete choice models to assumptions about the choice set. Such assumptions can affect welfare estimates through both the estimated parameters of the model and, conditional on the parameters, the substitution among alternatives. Our analysis involves estimates of the benefits of air quality improvements in Los Angeles based on discrete choices of neighborhood and housing. We further illustrate the use of meta analysis to document and summarize voluminous information derived from repeated sensitivity analyses.
Tipo: Working or Discussion Paper Palavras-chave: Meta analysis; Random utility model; Choice set; Air quality; Housing; Environmental Economics and Policy; C15; Q25; R21.
Ano: 2003 URL: http://purl.umn.edu/10453
Registros recuperados: 37
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