VoxEU Column High debt, low rates, and tail events: Rules-based fiscal frameworks under stress Niels Thygesen Stefano Santacroce Mateusz Szczurek Laszlo Jankovics Martin Larch Mateja Gabrijelcic Xavier Debrun Matthias Busse Massimo Bordignon Roel Beetsma 8 Mar 2021 COVID-19 Macroeconomic policy EU institutions EU policies