Publications

Rafael Postpischil, Dr. Klaus Jacob, Holger Bär, Ann-Cathrin Beermann, Anne Siemons, Dr. Katja Schumacher, Friedhelm Keimeyer | 06.2022 | Study

Holger Bär, Christopher Leisinger, Matthias Runkel, Marius Goerge, Marc Mecke | 05.2022 | Study

Holger Bär, Christopher Leisinger, Matthias Runkel | 03.2022 | Background paper

Holger Bär, Carolin Schenuit, Matthias Runkel | 12.2021 | Background paper

Holger Bär, Matthias Runkel, Kai Schlegelmilch | 08.2021 | Background paper

Rafael Postpischil, Dr. Klaus Jacob, Holger Bär, Anne Siemons, Friedhelm Keimeyer, Dr. Katja Schumacher | 06.2021 | Policy Brief

Rafael Postpischil, Dr. Klaus Jacob, Holger Bär, Anne Siemons, Friedhelm Keimeyer, Dr. Katja Schumacher | 06.2021 | Policy Brief

Holger Bär, Christopher Leisinger, Marie Neubert | 04.2021 | Policy Brief

Holger Bär, Isabel Schrems, David Bohnenberger | 04.2021 | Background paper

Isabel Schrems, Holger Bär, David Bohnenberger | 04.2021 | Background paper

Name	Purpose	Lifetime	Type	Provider
_pk_id	Used to store a few details about the user such as the unique visitor ID.	13 months	HTML	Matomo
_pk_ref	Used to store the attribution information, the referrer initially used to visit the website.	6 months	HTML	Matomo
_pk_ses	Short lived cookie used to temporarily store data for the visit.	30 minutes	HTML	Matomo
_pk_cvar	Short lived cookie used to temporarily store data for the visit.	30 minutes	HTML	Matomo
_pk_hsr	Short lived cookie used to temporarily store data for the visit.	30 minutes	HTML	Matomo