These three phenomena preceded the Scandinavian crises more than 20 years ago, as well as the most extreme recent crises in Europe and the Great Recession of the U.S. Banks’ increasing  BIS central bankers’ speeches  1  reliance on money market funding other than retail deposits is also observed quite regularly in the development before crises.
5.1.3  Collateral pledged to the central bank  The third area in which the new regulation could interact with the central bank’s operational framework is the collateral pledged to the central bank. As you know, all refinancing by the Eurosystem is provided only against the provision of adequate collateral, so as to protect it from losses should a counterparty default.