I want to know the answer to the following question:
What have central banks around the world done to avoid the risk of a deflationary spiral?
All the background I'm provided with is that "The U.S. Federal Reserve's new and expanded liquidity facilities were intended to enable the central bank to fulfill its traditional lender-of-last-resort role during the crisis while mitigating stigma, broadening the set of institutions with access to liquidity, and increasing the flexibility with which institutions could tap such liquidity.". Is that enough to answer the question?
Answer: no