Global liquidity provision is highly procyclical. The recent financial crisis has resulted in a flight to safety, with severe strains in key funding markets leading central banks to employ highly unconventional policies to avoid a systemic meltdown. Bagehot's advice to 'lend freely at high rates...

Central banks' international reserve holdings have increased significantly in the recent past. While traditional models fail to explain this accumulation of reserves, the more recent literature argues that reserves are used as a lifejacket against currency crises. However, research so far has...