Social surveys are often used to estimate unemployment duration distributions. Survey nonresponse may then cause a bias … respondents and non-respondents. We develop a method to empirically distinguish between two explanations for a bias in results … both explanations. We discuss implications for standard methods to deal with non-response bias. …

-for-data will yield a higher platform bias, lead to more data collection by the CPs, and ultimately lower consumer surplus. We also …

impact of both aspects on the estimated cost burden. I do not find significant evidence for a non-response bias. By contrast …