Economics at your fingertips  

Genuine Fakes: The Prevalence and Implications of Data Fabrication in a Large South African Survey

Arden Finn () and Vimal Ranchhod

World Bank Economic Review, 2017, vol. 31, issue 1, 129-157

Abstract: How prevalent is data fabrication in household surveys? Would such fabrication substantially affect the validity of empirical analyses? We document how we identified such fabrication in South Africa's longitudinal National Income Dynamics Study, which affected about 7% of the sample. The fabrication was detected while fieldwork was still on-going, and the relevant interviews were reconducted. We thus have an observed counterfactual that allows us to measure how problematic such fabrication would have been, had it remained undetected. We compare estimates from the dataset that includes the fabricated interviews with corresponding estimates that includes the corrected data instead. We find that the fabrication would not have affected our univariate and cross-sectional estimates meaningfully, but would have led us to reach substantially different conclusions when implementing panel estimators. We estimate that the data quality investigation in this survey had a benefit-cost ratio of at least 24, and was thus easily justifiable.

Keywords: Interviewer fraud; Data quality; Survey methodology (search for similar items in EconPapers)
JEL-codes: C18 C81 C83 J23 (search for similar items in EconPapers)
Date: 2017
References: Add references at CitEc
Citations: Track citations by RSS feed

Downloads: (external link) (application/pdf)
Access to full text is restricted to subscribers.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link:

Ordering information: This journal article can be ordered from

Access Statistics for this article

World Bank Economic Review is currently edited by Jaime de Melo

More articles in World Bank Economic Review from World Bank Group Oxford University Press, Great Clarendon Street, Oxford OX2 6DP, UK. Contact information at EDIRC.
Bibliographic data for series maintained by Oxford University Press ().

Page updated 2020-10-28
Handle: RePEc:oup:wbecrv:v:31:y:2017:i:1:p:129-157.