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Measurement errors in recall food consumption data

Naeem Ahmed, Matthew Brzozowski and Thomas Crossley

No W06/21, IFS Working Papers from Institute for Fiscal Studies

Abstract: Recall food consumption data, which is the basis of a great deal of empirical work, is believed to suffer from considerable measurement error. Diary records are believed to be very accurate. We study a unique data set that collects recall and diary data from the same households. Measurement errors in recall food consumption data appear to be substantial, and they do not have the properties of classical measurement error. We also find evidence that the diary measures are themselves imperfect. We consider the implications of our findings for modelling demand, measuring inequality, and estimating inter-temporal preference parameters. Keywords: expenditure, consumption, measurement error, survey data

JEL-codes: C81 D12 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-agr
Date: 2006-10-18
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