Does repeated measurement improve income data quality?
This paper exploits a natural experiment created by a survey design to show that the quality of income data systematically changes across waves of a panel. We estimate that the effect of being interviewed for a second time, relative to the first, is to increase mean monthly income by 8%. Dependent interviewing – a recall device commonly used in panel surveys – explains one third of the observed increase. The remaining share is attributed to changes in respondent behaviour (panel conditioning). We review the evidence for and against a reporting improvement vs. a behavioural response by survey participants.
Oxford Bulletin of Economics and Statistics
Volume and page numbers
81 , 989 -1011
Open Access; This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.; © 2019 The Authors. Oxford Bulletin of Economics and Statistics published by Oxford University and John Wiley & Sons Ltd