Land area is a fundamental component of agricultural statistics, and of analyses undertaken by agricultural economists. While household surveys in developing countries have traditionally relied on farmers' own, potentially error-prone, land area assessments, the availability of affordable and reliable Global Positioning System (GPS) units has made GPS-based area measurement a practical alternative. Nonetheless, in an attempt to reduce costs, keep...
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ПОДРОБНАЯ ИНФОРМАЦИЯ
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2013/06/01
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Рабочий документ в рамках исследования вопросов политики
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WPS6490
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1
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1
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2013/06/01
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Disclosed
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Missing(ness) in action : selectivity bias in GPS-based land area measurements
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missing data