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Book (series)Multiple frame agricultural surveys. Volume 1. Current surveys based on area and list sampling methods 1996
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No results found.Much of the required information for the agricultural sector, such as crop production, livestock inventories, and basic social and economic data, is obtained through periodic national, multi-purpose agricultural data collection programmes called "Current Agricultural Surveys". This manual describes the sample design, organization and implementation procedures for these current agricultural surveys using multiple frame probability sampling methods, which is a new methodology currently being adopted by many countries around the world. Specific case studies will be presented in Volume II. This handbook introduces the subject and describes the practical aspects of list and area frame construction and sample selection methods while recognizing the resource and specialized staff constraints faced by developing countries. -
Book (series)Producing agricultural population estimates using an area frame 2023
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No results found.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. -
Book (series)Operational guidelines on listing and survey preparation for household and non-household agricultural holdings and special farms 2021
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No results found.This document is part of the FAO Statistics working paper series and part of the series of operational guidelines of the FAO Survey Team providing practical cost effective orientations to countries on agricultural surveys from the conception and implementation to data dissemination. The present document is focused on operational clarifications on the definitions of agricultural holdings and operational guidance for establishing lists of agricultural holdings for agricultural surveys. This document is the result of a collaborative work of experienced experts of FAO Survey Team and national consultants working in statistical offices in countries where agricultural surveys cover agricultural holdings in both household and non-household sectors and special farms.
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