@TechReport{iza:izadps:dp573,
            	author={Riphahn, Regina T. and Serfling, Oliver},
            	title={Item Non-Response on Income and Wealth Questions},
            	year={2002},
	month={Sep},
            	institution={Institute of Labor Economics (IZA)},
            	address={Bonn},
            	type={IZA Discussion Paper},
            	number={573},
            	url={https://www.iza.org/index.php/publications/dp573},
	abstract={After reviewing the literature on item non-response we focus on three issues: First, is there
significant heterogeneity in item non-response across financial questions and in the
association of covariates with item non-response across outcomes? Second, can the
informational value of surveys be improved by matching interviewers and respondents based
on their characteristics? Third, how does offering a "don't know" answer option affect
respondent behavior? The questions are answered based on detailed survey and interviewer
data from the German Socioeconomic Panel, considering a broad set of income and wealth
outcomes.
},
	keywords={item non-response;survey quality;interviewer effects;income and wealth},
            }