Pundits from all quarters harshly criticized the German Federal Constitutional Court of Karlsruhe after its judgment of last 5 May 2020.
The Court raised constitutional complaints in regard to the Bundesbank’s approval of the European Central Bank (ECB)’s Public Sector Purchase Programme (PSPP). According to the Court, PSPP potentially violated the principle of proportionality, and thus jeopardized the ability of the ECB (and thus of the Bundesbank) to achieve its price stability mandate. In June 2020, the ECB provided the Karlsruhe Court with documents including detailed considerations on proportionality behind PSPP. Even though these documents met the requirements of the Karlsruhe Court, the ECB will nonetheless be forced to consider the issue of proportionality much more carefully when purchasing government bonds in the future.