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Author : Adam Zachariah Pichon
Publisher :
ISBN 13 :
Total Pages : 236 pages
Book Rating : 4.:/5 (523 download)
Download or read book Modeling Farm Level Yield Distributions written by Adam Zachariah Pichon and published by . This book was released on 2002 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Octavio A. Ramirez
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (137 download)
Download or read book Crop-Yield Distributions Revisited written by Octavio A. Ramirez and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This article revisits the issue of crop-yield distributions using improved model specifications, estimation, and testing procedures that address the concerns raised in recent literature, which could have invalidated previous findings of yield nonnormality. It concludes that some aggregate and farm-level yield distributions are nonnormal, kurtotic, and right or left skewed, depending on the circumstances. The advantages of utilizing nonnormal versus normal probability distribution function models, and the consequences of incorrectly assuming crop-yield normality are explored.
Author : Octavio A. Ramirez
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (137 download)
Download or read book Crop-Yield Distributions Revisited written by Octavio A. Ramirez and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This article revisits the issue of crop-yield distributions using improved model specifications, estimation, and testing procedures that address the concerns raised in recent literature, which could have invalidated previous findings of yield nonnormality. It concludes that some aggregate and farm-level yield distributions are nonnormal, kurtotic, and right or left skewed, depending on the circumstances. The advantages of utilizing nonnormal versus normal probability distribution function models, and the consequences of incorrectly assuming crop-yield normality are explored.
Author : Ulrich Maerz
Publisher :
ISBN 13 :
Total Pages : 54 pages
Book Rating : 4.E/5 ( download)
Download or read book Methods to Simulate Distributions of Crop-yields Based on Farmer Interviews written by Ulrich Maerz and published by . This book was released on 1987 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kenneth H Baum
Publisher : CRC Press
ISBN 13 : 0429705417
Total Pages : 442 pages
Book Rating : 4.4/5 (297 download)
Download or read book Modeling Farm Decisions For Policy Analysis written by Kenneth H Baum and published by CRC Press. This book was released on 2019-03-08 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microeconomic modeling has been an important tool for agricultural economists for several decades and promises to be important for ad-dressing the research problems of the 1980s as well. This volume explores the possibilities for using micromodeling to analyze how individual farm businesses react to and are affected by farm policies. Although this purpose represents only one potential use of micro-modeling, effective modeling for policy analysis necessitates a broad look from several historical, analytical, and institutional perspectives. The Micromodeling Conference held November 18-20, 1981, at Airlie House, Virginia, under the auspices of the U.S. Department of Agri-culture's Economic Research Service and the Farm Foundation reflected these concerns.
Author : Tariq Husain
Publisher :
ISBN 13 :
Total Pages : 106 pages
Book Rating : 4.:/5 (89 download)
Download or read book A Model for Estimating the Effects of Credit Pricing on Farm Level Employment and Income Distribution written by Tariq Husain and published by . This book was released on 1975 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Joan R. Fulton
Publisher :
ISBN 13 :
Total Pages : 14 pages
Book Rating : 4.:/5 (186 download)
Download or read book Combining Farm and County Data to Construct Farm Level Yield Distributions written by Joan R. Fulton and published by . This book was released on 1988 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : A. Ford Ramsey
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (137 download)
Download or read book Probability Distributions of Crop Yields written by A. Ford Ramsey and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Probability distributions of crop yields are important for understanding technological change, the effects of weather on crop production, and production risk. It can be difficult to model these distributions because they are time-varying and do not follow a particular parametric form. To overcome some of the empirical challenges inherent in yield modeling, we implement a Bayesian spatial quantile regression model for the conditional distribution of yields. The statistical model is semiparametric, borrows information across space and quantile level, and models the complete quantile process. We use the model in two empirical applications where flexible modeling of the yield distribution is essential. First, we evaluate the effects of weather across quantiles and conduct a Bayesian test of the difference in the rate of technological change at opposite ends of the yield distribution. We then derive crop insurance premium rates and compare the predictive performance of the Bayesian spatial quantile regression to other existing approaches for modeling time-varying yield distributions.
Author : Barry K. Goodwin
Publisher : World Bank Publications
ISBN 13 :
Total Pages : 38 pages
Book Rating : 4./5 ( download)
Download or read book Risk Modeling Concepts Relating to the Design and Rating of Agricultural Insurance Contracts written by Barry K. Goodwin and published by World Bank Publications. This book was released on 2004 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Goodwin and Mahul identify the key issues and concerns that arise in the design and rating of crop yield insurance plans, with a particular emphasis on production risk modeling. The authors show how the availability of data shapes the insurance scheme and the ratemaking procedures. Relying on the U.S. experience and recent developments in statistics and econometrics, they review risk modeling concepts and provide technical guidelines in the development of crop insurance plans. Finally, they show how these risk modeling techniques can be extended to price risk in order to develop crop revenue insurance schemes. This paper-- a product of the Financial Sector Operations and Policy Department-- is part of a larger effort in the department to develop effective risk management and financial products for agriculture"-- World Bank web site.
Author : Richard E. Just
Publisher : Springer Science & Business Media
ISBN 13 : 1475735839
Total Pages : 580 pages
Book Rating : 4.4/5 (757 download)
Download or read book A Comprehensive Assessment of the Role of Risk in U.S. Agriculture written by Richard E. Just and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: After all the research on agricultural risk to date, the treatment of risk in agricultural research is far from harmonious. Many competing risk models have been proposed. Some new methodologies are largely untested. Some of the leading empirical methodologies in agricultural economic research are poorly suited for problems with aggregate data where risk averse behavior is less likely to be important. This book is intended to (i) define the current state of the literature on agricultural risk research, (ii) provide a critical evaluation of economic risk research on agriculture to date and (iii) set a research agenda that will meet future needs and prospects. This type of research promises to become of increasing importance because agricultural policy in the United States and elsewhere has decidedly shifted from explicit income support objectives to risk-related motivations of helping farmers deal with risk. Beginning with the 1996 Farm Bill, the primary set of policy instruments from U.S. agriculture has shifted from target prices and set aside acreage to agricultural crop insurance. Because this book is intended to have specific implications for U.S. agricultural policy, it has a decidedly domestic scope, but clearly many of the issues have application abroad. For each of the papers and topics included in this volume, individuals have been selected to give the strongest and broadest possible treatment of each facet of the problem. The result is this comprehensive reference book on the economics of agricultural risk.
Author : P Singh
Publisher : CRC Press
ISBN 13 : 1482280442
Total Pages : 534 pages
Book Rating : 4.4/5 (822 download)
Download or read book Modeling Crop Production Systems written by P Singh and published by CRC Press. This book was released on 2008-01-01 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of simulation models is a necessity and also an aid in the decision-making process in sustainable agricultural systems. Organizing the experimental knowledge of crop production systems without the book keeping and deductive methods of mathematics is very difficult. This book aims to guide readers in the process by which the properties of th
Author : Kenneth H Baum
Publisher : CRC Press
ISBN 13 : 0429725426
Total Pages : 442 pages
Book Rating : 4.4/5 (297 download)
Download or read book Modeling Farm Decisions For Policy Analysis written by Kenneth H Baum and published by CRC Press. This book was released on 2019-03-08 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microeconomic modeling has been an important tool for agricultural economists for several decades and promises to be important for ad-dressing the research problems of the 1980s as well. This volume explores the possibilities for using micromodeling to analyze how individual farm businesses react to and are affected by farm policies. Although this purpose represents only one potential use of micro-modeling, effective modeling for policy analysis necessitates a broad look from several historical, analytical, and institutional perspectives. The Micromodeling Conference held November 18-20, 1981, at Airlie House, Virginia, under the auspices of the U.S. Department of Agri-culture's Economic Research Service and the Farm Foundation reflected these concerns.
Author : Allen R. Overman
Publisher : CRC Press
ISBN 13 : 0824743598
Total Pages : 341 pages
Book Rating : 4.8/5 (247 download)
Download or read book Mathematical Models of Crop Growth and Yield written by Allen R. Overman and published by CRC Press. This book was released on 2002-08-27 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: Highlighting effective, analytical functions that have been found useful for the comparison of alternative management techniques to maximize water and nutrient resources, this reference describes the application of viable mathematical models in data analysis to increase crop growth and yields. Featuring solutions to various differential equations, the book covers the characteristics of the functions related to the phenomenological growth model. Including more than 1300 literature citations, display equations, tables, and figures and outlining an approach to mathematical crop modeling, Mathematical Models of Crop Growth and Yield will prove an invaluable resource.
Author : Yu Yvette Zhang
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (137 download)
Download or read book A Density-Ratio Model of Crop Yield Distributions written by Yu Yvette Zhang and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper proposes a density ratio estimator of crop yield distributions, wherein the number of observations for individual distributions is often quite small. The density ratio approach models individual densities as distortions from a common baseline density. We introduce a probability integral transformation to the density ratio method that simplifies the modeling of distortion functions. We further present an implementation approach based on the Poisson regression, which facilitates model estimation and diagnostics. Monte Carlo simulations demonstrate good finite sample performance of the proposed method. We apply this method to estimate the corn yield distributions of ninety-nine Iowa counties, and to calculate crop insurance premiums. Lastly, we illustrate that we can employ the proposed method to effectively identify profitable insurance policies.
Author : Roger Claassen
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (137 download)
Download or read book Heterogeneity and Distributional Form of Farm-Level Yields written by Roger Claassen and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Representing farm-level crop yield heterogeneity and distributional form is critical for risk and crop insurance research. Most studies have used county data, understating both systematic and random variation. Comparison of systematic versus random intra-county variation is lacking. Few studies compare the various distributional forms that have been proposed. This study utilizes the extensive potential of government farm-level crop insurance data. Results show that systematic intra-county variation is surprisingly strong. A newly applied reverse lognormal distribution is preferred when county-wide variation is removed, but the normal distribution fits surprisingly well in the crop insurance relevant percentiles when county-wide variation is not removed.
Author : Todd S. Rosenstock
Publisher : Springer
ISBN 13 : 3319297945
Total Pages : 217 pages
Book Rating : 4.3/5 (192 download)
Download or read book Methods for Measuring Greenhouse Gas Balances and Evaluating Mitigation Options in Smallholder Agriculture written by Todd S. Rosenstock and published by Springer. This book was released on 2016-08-23 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides standards and guidelines for quantifying greenhouse gas emissions and removals in smallholder agricultural systems and comparing options for climate change mitigation based on emission reductions and livelihood trade-offs. Globally, agriculture is directly responsible for about 11% of annual greenhouse gas (GHG) emissions and induces an additional 17% through land use change, mostly in developing countries. Farms in the developing countries of sub-Saharan Africa and Asia are predominately managed by smallholders, with 80% of land holdings smaller than ten hectares. However, little to no information exists on greenhouse gas emissions and mitigation potentials in smallholder agriculture. Greenhouse gas measurements in agriculture are expensive, time consuming, and error prone, challenges only exacerbated by the heterogeneity of smallholder systems and landscapes. Concerns over methodological rigor, measurement costs, and the diversity of approaches, coupled with the demand for robust information suggest it is germane for the scientific community to establish standards of measurements for quantifying GHG emissions from smallholder agriculture. Standard guidelines for use by scientists, development organizations will help generate reliable data on emissions baselines and allow rigorous comparisons of mitigation options. The guidelines described in this book, developed by the CGIAR Research Program on Climate Change, Agriculture, and Food Security (CCAFS) and partners, are intended to inform anyone conducting field measurements of agricultural greenhouse gas sources and sinks, especially to develop IPCC Tier 2 emission factors or to compare mitigation options in smallholder systems.
Author : Charles Britt Moss
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.:/5 (256 download)
Download or read book Estimating Yield Distributions Using a Stochastic Trend Model and Nonnormal Errors written by Charles Britt Moss and published by . This book was released on 1992 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
