Dear Colleague, It is our pleasure to announce that the registration for the MaCCI Annual Conference 2021 is now open. The registration links can be found on the main page of the event at the following link: https://www.zew.de/VA3319-1 If you were selected to present during the second day of the conference, we would kindly ask you to register as "presenter" no later than January 31st. We look forward to see you at the conference. Best regards, Jacopo Gambato · Nadine Hahn · Thomas Fetzer · Martin Peitz –– ZEW – Leibniz-Zentrum für Europäische Wirtschaftsforschung GmbH Mannheim L7, 1 · 68161 Mannheim | Sitz der Gesellschaft: Mannheim · Amtsgericht Mannheim HRB 6554 | Aufsichtsratsvorsitzender: Ministerialdirektor Ulrich Steinbach | Geschäftsführer: Prof. Achim Wambach, Ph.D.; Thomas Kohl ZEW – Leibniz Centre for European Economic Research L7, 1 · 68161 Mannheim, Germany | Registered Office: Mannheim · Local Court Mannheim HRB 6554 | Chairman of the Supervisory Board: Ministerial Director Ulrich Steinbach | Executive Directors: Prof. Achim Wambach, PhD; Thomas Kohl