Fact or artefact : the impact of measurement errors on the farm size

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Fact or artefact : the impact of measurement errors on the farm size - productivity relationship

Author:	Carletto, Calogero; Savastano, Sara; Zezza, Alberto;	Collection Title:	Policy Research working paper ; no. WPS 5908Paper is funded by the Knowledge for Change Program (KCP)
Country:	Uganda; Africa;	Date Stored:	2011/12/12
Document Date:	2011/12/01	Document Type:	Policy Research Working Paper
Language:	English	Major Sector:	Education; Agriculture, fishing, and forestry; Health and other social services; Transportation
Rel. Proj ID:	3A-Lsms Integrated Surveys On Agriculture -- -- P114487;	Region:	Africa
Report Number:	WPS5908	Sub Sectors:	Health; General agriculture, fishing and forestry sector; General education sector; General transportation sector
SubTopics:	Regional Economic Development; Land Use and Policies; Rural Development Knowledge & Information Systems; E-Business; Rural Land Policies for Poverty Reduction	TF No/Name:	TF098893-KCP II - Measuring Development Indicators for Pastoralists Populations; TF098007-Improved Measurement of Welfare in Niger; TF093624-Improving the quality and policy relevance of household-level data on a
Volume No:	1 of 1

Summary: This paper revisits the role of land measurement error in the inverse farm size and productivity relationship. By making use of data from a nationally representative household survey from Uganda, in which self-reported land size information is complemented by plot measurements collected using Global Position System devices, the authors reject the hypothesis that the inverse relationship may just be a statistical artifact linked to problems with land measurement error. In particular, the paper explores: (i) the determinants of the bias in land measurement, (ii) how this bias varies systematically with plot size and landholding, and (iii) the extent to which land measurement error affects the relative advantage of smallholders implied by the inverse relationship. The findings indicate that using an improved measure of land size strengthens the evidence in support of the existence of the inverse relationship.


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