Producing agricultural population estimates using an area frame

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Publisher : Food & Agriculture Org.
ISBN 13 : 9251376697
Total Pages : 29 pages
Book Rating : 4.2/5 (513 download)

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Book Synopsis Producing agricultural population estimates using an area frame by : Missiroli, S., Bako, D., Salazar, D.

Download or read book Producing agricultural population estimates using an area frame written by Missiroli, S., Bako, D., Salazar, D. and published by Food & Agriculture Org.. This book was released on 2023-03-03 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: Estimating with a high precision the number of agricultural holdings and other population-related indicators is one of the main targets of the agricultural surveys. Achieving this objective is not straightforward when using an area frame: the choice of the estimator is indeed delicate since it depends on the criterion to link the observation units (e.g. agricultural holdings or tracts) and the sampling units (e.g. segments or points). According to the rule chosen, different types of estimators are defined: the open segment estimator, the closed segment estimator, the weighted segment estimator, the Horvitz–Thompson estimator and the multiplicity estimator. Moreover, auxiliary variables correlated to the population indicators can be used to produce the estimates: this is the case of the ratio estimator. In this paper, we describe the estimators mentioned above, focusing particularly on the comparison between them when the target parameter to be estimated is the number of agricultural holdings.

Estimating Population Totals from Area Frame Samples

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Publisher :
ISBN 13 :
Total Pages : 138 pages
Book Rating : 4.:/5 (138 download)

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Book Synopsis Estimating Population Totals from Area Frame Samples by : Abderrazak Garoui

Download or read book Estimating Population Totals from Area Frame Samples written by Abderrazak Garoui and published by . This book was released on 1985 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: Area frame sampling for agricultural statistics is a procedure currently used by the Statistical Reporting Service of the US Department of Agriculture as well as by agriculture departments in other countries. A primary advantage of the area frame is that it provides complete coverage of the population. In area frame sampling the total area is divided into segments of land that form the sampling units. These segments are delineated by the use of detailed maps and aerial photography. The reporting units, however, are not the segments but are the farms. Since there will be many cases where farms overlap the boundaries of the segments, there have to be rules for assigning data from the farms to the sample segments. Previously used procedures for making this assignment are the open segment method, where the total farm value is assigned to the segment that contains the farm headquarters, the closed segment method, where the actual value associated with the tracts of land contained within the segment is used, and the weighted segment method, where the total farm value is weighted by the proportion of the farm area that is contained in the segment. In this thesis, a general linear unbiased estimator is formulated that includes all previously used methods as special cases. These methods are compared in terms of variance and cost. The optimal estimator depends on the amount and type of overlap of farms with segment boundaries, so it is not possible to give an estimator that is always to be preferred. However, comparisons are made under some special assumptions that, while not particularly realistic, do give insight into conditions affecting the methods and show that the multiplicity rule is an important method to consider.

Agricultural Survey Methods

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Publisher : John Wiley & Sons
ISBN 13 : 9780470665466
Total Pages : 434 pages
Book Rating : 4.6/5 (654 download)

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Book Synopsis Agricultural Survey Methods by : Roberto Benedetti

Download or read book Agricultural Survey Methods written by Roberto Benedetti and published by John Wiley & Sons. This book was released on 2010-03-18 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to the widespread use of surveys in agricultural resources estimation there is a broad and recognizable interest in methods and techniques to collect and process agricultural data. This book brings together the knowledge of academics and experts to increase the dissemination of the latest developments in agricultural statistics. Conducting a census, setting up frames and registers and using administrative data for statistical purposes are covered and issues arising from sample design and estimation, use of remote sensing, management of data quality and dissemination and analysis of survey data are explored. Key features: Brings together high quality research on agricultural statistics from experts in this field. Provides a thorough and much needed overview of developments within agricultural statistics. Contains summaries for each chapter, providing a valuable reference framework for those new to the field. Based upon a selection of key methodological papers presented at the ICAS conference series, updated and expanded to address current issues. Covers traditional statistical methodologies including sampling and weighting. This book provides a much needed guide to conducting surveys of land use and to the latest developments in agricultural statistics. Statisticians interested in agricultural statistics, agricultural statisticians in national statistics offices and statisticians and researchers using survey methodology will benefit from this book.

Crop Statistics and Agricultural Census

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Author :
Publisher : Bernan Press(PA)
ISBN 13 :
Total Pages : 100 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis Crop Statistics and Agricultural Census by :

Download or read book Crop Statistics and Agricultural Census written by and published by Bernan Press(PA). This book was released on 1977 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

An Analysis of the Cost and Usefulness of Area Frame, List Frame, and Multiple Frame Sampling for Estimating Livestock Inventories in Nevada

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Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis An Analysis of the Cost and Usefulness of Area Frame, List Frame, and Multiple Frame Sampling for Estimating Livestock Inventories in Nevada by : Craig M. Hayes

Download or read book An Analysis of the Cost and Usefulness of Area Frame, List Frame, and Multiple Frame Sampling for Estimating Livestock Inventories in Nevada written by Craig M. Hayes and published by . This book was released on 1975 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Preparing Statistics for Agriculture

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Publisher :
ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis Preparing Statistics for Agriculture by : United States. National Agricultural Statistics Service

Download or read book Preparing Statistics for Agriculture written by United States. National Agricultural Statistics Service and published by . This book was released on 2003 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Estimation of Totals for Skewed Populations in Repeated Agricultural Surveys

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Publisher :
ISBN 13 :
Total Pages : 180 pages
Book Rating : 4.:/5 (243 download)

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Book Synopsis Estimation of Totals for Skewed Populations in Repeated Agricultural Surveys by : Boonchai Viroonsri

Download or read book Estimation of Totals for Skewed Populations in Repeated Agricultural Surveys written by Boonchai Viroonsri and published by . This book was released on 1990 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: The National Agricultural Statistical Service (NASS) conducts quarterly surveys for estimation of some primary commodities produced on farms and ranches. The commodities often have highly skewed distributions with a few farms producing very large amounts. NASS uses dual sampling frames comprised of the list frame for efficient stratification and the area frame for estimation of the part (nonoverlap) of the population that is not included in the list frame. Because the area frame sampling probabilities are relatively small, a few large observations in the nonoverlap sample can greatly influence the usual direct expansion (DE) estimates for population totals. The purpose of this thesis is to investigate modifications of the usual DE estimators which could produce more efficient estimators for the NASS quarterly surveys. An empirical Bayes approach is used as a method for including estimates from previous quarterly surveys to help stabilize the estimate for the current survey. Another approach is to right-censor the very large expanded observations in the nonoverlap sample to produce a censored direct expansion (CDE) estimator. A bias adjustment, formed as the ratio of the DE and CDE sums over the repeated surveys, is applied to the CDE estimator to produce the adjusted censored direct expansion (ACDE) estimator. The empirical Bayes technique is then applied to the ACDE estimates. The empirical Bayes and censored estimates are calculated for total hogs and pigs in the nine quarterly surveys: March 1987-March 1989 from Indiana, Iowa, and Ohio. A bootstrap method is constructed to estimate and compare the biases, standard errors, and root mean square errors (RMSE's) of the various estimators. Only a slight reduction in RMSE resulted from censoring the very large expanded observations in the nonoverlap sample. Application of the empirical Bayes technique to either the DE or the ACDE estimators reduced the average RMSE by about 10% in each of the three states.

Improving Crop Estimates by Integrating Multiple Data Sources

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Publisher : National Academies Press
ISBN 13 : 030946529X
Total Pages : 149 pages
Book Rating : 4.3/5 (94 download)

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Book Synopsis Improving Crop Estimates by Integrating Multiple Data Sources by : National Academies of Sciences, Engineering, and Medicine

Download or read book Improving Crop Estimates by Integrating Multiple Data Sources written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2018-01-26 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt: The National Agricultural Statistics Service (NASS) is the primary statistical data collection agency within the U.S. Department of Agriculture (USDA). NASS conducts hundreds of surveys each year and prepares reports covering virtually every aspect of U.S. agriculture. Among the small-area estimates produced by NASS are county-level estimates for crops (planted acres, harvested acres, production, and yield by commodity) and for cash rental rates for irrigated cropland, nonirrigated cropland, and permanent pastureland. Key users of these county-level estimates include USDA's Farm Services Agency (FSA) and Risk Management Agency (RMA), which use the estimates as part of their processes for distributing farm subsidies and providing farm insurance, respectively. Improving Crop Estimates by Integrating Multiple Data Sources assesses county-level crop and cash rents estimates, and offers recommendations on methods for integrating data sources to provide more precise county-level estimates of acreage and yield for major crops and of cash rents by land use. This report considers technical issues involved in using the available data sources, such as methods for integrating the data, the assumptions underpinning the use of each source, the robustness of the resulting estimates, and the properties of desirable estimates of uncertainty.

Conducting Agricultural Censuses and Surveys

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Publisher :
ISBN 13 :
Total Pages : 180 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Conducting Agricultural Censuses and Surveys by : Food and Agriculture Organization of the United Nations

Download or read book Conducting Agricultural Censuses and Surveys written by Food and Agriculture Organization of the United Nations and published by . This book was released on 1996 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Sampling Spatial Units for Agricultural Surveys

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Publisher : Springer
ISBN 13 : 3662460084
Total Pages : 340 pages
Book Rating : 4.6/5 (624 download)

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Book Synopsis Sampling Spatial Units for Agricultural Surveys by : Roberto Benedetti

Download or read book Sampling Spatial Units for Agricultural Surveys written by Roberto Benedetti and published by Springer. This book was released on 2015-03-20 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: The research and its outcomes presented here focus on spatial sampling of agricultural resources. The authors introduce sampling designs and methods for producing accurate estimates of crop production for harvests across different regions and countries. With the help of real and simulated examples performed with the open-source software R, readers will learn about the different phases of spatial data collection. The agricultural data analyzed in this book help policymakers and market stakeholders to monitor the production of agricultural goods and its effects on environment and food safety.

Introduction to Small Area Estimation Techniques

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Publisher : Asian Development Bank
ISBN 13 : 9292622234
Total Pages : 152 pages
Book Rating : 4.2/5 (926 download)

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Book Synopsis Introduction to Small Area Estimation Techniques by : Asian Development Bank

Download or read book Introduction to Small Area Estimation Techniques written by Asian Development Bank and published by Asian Development Bank. This book was released on 2020-05-01 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: This guide to small area estimation aims to help users compile more reliable granular or disaggregated data in cost-effective ways. It explains small area estimation techniques with examples of how the easily accessible R analytical platform can be used to implement them, particularly to estimate indicators on poverty, employment, and health outcomes. The guide is intended for staff of national statistics offices and for other development practitioners. It aims to help them to develop and implement targeted socioeconomic policies to ensure that the vulnerable segments of societies are not left behind, and to monitor progress toward the Sustainable Development Goals.

Sampling Frames of Square Segments

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Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (111 download)

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Book Synopsis Sampling Frames of Square Segments by :

Download or read book Sampling Frames of Square Segments written by and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Improving Data Collection and Measurement of Complex Farms

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Publisher : National Academies Press
ISBN 13 : 030948460X
Total Pages : 199 pages
Book Rating : 4.3/5 (94 download)

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Book Synopsis Improving Data Collection and Measurement of Complex Farms by : National Academies of Sciences, Engineering, and Medicine

Download or read book Improving Data Collection and Measurement of Complex Farms written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2019-02-21 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: America's farms and farmers are integral to the U.S. economy and, more broadly, to the nation's social and cultural fabric. A healthy agricultural sector helps ensure a safe and reliable food supply, improves energy security, and contributes to employment and economic development, traditionally in small towns and rural areas where farming serves as a nexus for related sectors from farm machinery manufacturing to food processing. The agricultural sector also plays a role in the nation's overall economic growth by providing crucial raw inputs for the production of a wide range of goods and services, including many that generate substantial export value. If the agricultural sector is to be accurately understood and the policies that affect its functioning are to remain well informed, the statistical system's data collection programs must be periodically revisited to ensure they are keeping up with current realities. This report reviews current information and makes recommendations to the U.S. Department of Agriculture's (USDA's) National Agricultural Statistics Service (NASS) and Economic Research Service (ERS) to help identify effective methods for collecting data and reporting information about American agriculture, given increased complexity and other changes in farm business structure in recent decades.

Estimation of Crop Areas and Yields in Agricultural Statistics

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Publisher :
ISBN 13 :
Total Pages : 200 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Estimation of Crop Areas and Yields in Agricultural Statistics by : Food and Agriculture Organization of the United Nations. Statistics Division

Download or read book Estimation of Crop Areas and Yields in Agricultural Statistics written by Food and Agriculture Organization of the United Nations. Statistics Division and published by . This book was released on 1982 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Multiple Frame Agricultural Surveys

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Publisher : Bernan Press(PA)
ISBN 13 :
Total Pages : 262 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Multiple Frame Agricultural Surveys by :

Download or read book Multiple Frame Agricultural Surveys written by and published by Bernan Press(PA). This book was released on 1998 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents the survey methodologies of area and multiple frame agricultural survey programs currently used in a wide range of countries.

Sampling Methods for Agricultural Surveys

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Publisher : Conran Octopus
ISBN 13 :
Total Pages : 284 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Sampling Methods for Agricultural Surveys by : Food and Agriculture Organization of the United Nations

Download or read book Sampling Methods for Agricultural Surveys written by Food and Agriculture Organization of the United Nations and published by Conran Octopus. This book was released on 1989 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Federal Statistics, Multiple Data Sources, and Privacy Protection

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Publisher : National Academies Press
ISBN 13 : 0309465370
Total Pages : 195 pages
Book Rating : 4.3/5 (94 download)

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Book Synopsis Federal Statistics, Multiple Data Sources, and Privacy Protection by : National Academies of Sciences, Engineering, and Medicine

Download or read book Federal Statistics, Multiple Data Sources, and Privacy Protection written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2018-01-27 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: The environment for obtaining information and providing statistical data for policy makers and the public has changed significantly in the past decade, raising questions about the fundamental survey paradigm that underlies federal statistics. New data sources provide opportunities to develop a new paradigm that can improve timeliness, geographic or subpopulation detail, and statistical efficiency. It also has the potential to reduce the costs of producing federal statistics. The panel's first report described federal statistical agencies' current paradigm, which relies heavily on sample surveys for producing national statistics, and challenges agencies are facing; the legal frameworks and mechanisms for protecting the privacy and confidentiality of statistical data and for providing researchers access to data, and challenges to those frameworks and mechanisms; and statistical agencies access to alternative sources of data. The panel recommended a new approach for federal statistical programs that would combine diverse data sources from government and private sector sources and the creation of a new entity that would provide the foundational elements needed for this new approach, including legal authority to access data and protect privacy. This second of the panel's two reports builds on the analysis, conclusions, and recommendations in the first one. This report assesses alternative methods for implementing a new approach that would combine diverse data sources from government and private sector sources, including describing statistical models for combining data from multiple sources; examining statistical and computer science approaches that foster privacy protections; evaluating frameworks for assessing the quality and utility of alternative data sources; and various models for implementing the recommended new entity. Together, the two reports offer ideas and recommendations to help federal statistical agencies examine and evaluate data from alternative sources and then combine them as appropriate to provide the country with more timely, actionable, and useful information for policy makers, businesses, and individuals.