[In line with these principles, the ECB equipped itself with a broad operational framework from the outset, including the eligibility of a large number of counterparties and a wide set of collateral in refinancing operations.
At the same time, the post-crisis operational framework also needs to be designed in a way that contributes to shaping a healthy banking sector, even if proper incentives should essentially come from sound regulation and supervision]. 3. The future of central banking and main challenges ahead  What are the desirable features of a post-crisis “steady state” monetary policy framework?