The ASEP (Austrian Socio-Economic Panel) is designed as a long-term household panel for Austria, which consists of two parts: firstly, a purely register-based data infrastructure for the social and economic sciences and secondly, annual longitudinal survey data. The ASEP is set up by Statistics Austria and is accompanied by a scientific advisory board. As part of the project, the IHS coordinates the scientific input for the register core of the ASEP and the contents of the questionnaire, as well as the development of the survey instrument.