Cheaper, Faster, and More Than Good Enough: Is GPS the New Gold Standard in Land Area Measurement?
Keywords: land, agriculture, measurement, household surveys
AbstractIn rural societies of low- and middle-income countries, land is a major measure of wealth, a critical input in agricultural production, and a key variable for assessing agricultural performance and productivity. In the absence of cadastral information to refer to, measures of land plots have historically been taken with one of two approaches: traversing (accurate, but cumbersome), and farmers’ self-report (cheap, but marred by measurement error). Recently, the advent of cheap handheld GPS devices has held promise for balancing cost and precision. Guided by purposely collected primary data from Ethiopia, Nigeria, and Tanzania (Zanzibar), and with consideration for practical household survey implementation, the paper assesses the nature and magnitude of measurement error under different measurement methods and proposes a set of recommendations for plot area measurement. The results largely point to the support of GPS measurement, with simultaneous collection of farmer self-reported areas.
How to Cite
Carletto, C., Gourlay, S., Murray, S., & Zezza, A. (2017). Cheaper, Faster, and More Than Good Enough: Is GPS the New Gold Standard in Land Area Measurement?. Survey Research Methods, 11(3), 235-265. https://doi.org/10.18148/srm/2017.v11i3.6791
Copyright for articles published in this journal is retained by the authors, with first publication rights granted to the journal. By virtue of their appearance in this open access journal, users can use, reuse and build upon the material published in the journal but only for non-commercial purposes and with proper attribution.