In this article, we examine two types of item nonresponse in a face‐to‐face population survey: ‘don’t know’ (DK) and ‘item refusal’ (REF). Based on the cognitive model of survey response, the theory of survey satisficing and previous research, we derive explanatory variables on...

The German health care reform of 2004 imposes a charge of 10 Euro for the first visit to a doctor in each quarter of the year. Exploiting random variation in the interview day of the German Socio-Economic Panel, this study finds a substantial effect of the new fee on the probability of visiting...

Das Diskussionspapier greift die problematische Datenerfassung der Freien Berufe im Sozio-ökonomischen Panel (SOEP) auf. Im Mittelpunkt stehen sogenannte kritische Wechsel zwischen freiberuflichen und selbständigen Tätigkeiten innerhalb der Selbständigen-Gruppe des SOEP. Forschungsziel...

The discussion paper deals with the problematic data entry of free professions in the socioeconomic panel (SOEP) and tries to find a systematic approach which enhances the consistency and therefore the quality of the data. Thereby critical changes within the self-employed group are addressed in...