2. thE rEgulatOry aspEcts
Regulation-wise, BCBS (2008) clearly mandates deterministic stress tests for liquidity purposes, in particular the survivability of a bank in thecase of severe stress. One stress test is further detailed in BCBS (2009b) (part of what is now known, together with BCBS (2009a) as Basel III), where the Liquidity Coverage Ratio (LCR) acts as a limit which must not be breached for at least 30 days. In a way, then, the Liquidity Coverage Ratio (NSFR) acts as a backstop or benchmark for the bank-internal stress testing. It implies the notion of a liquidity buffer acting as a means to defend the balance sheet if it suddenly comes under fire. The Net Stable Funding Ratio dictates certain stylized facts about what a balance sheet ought to look like, i.e., that long term commitments must be refinanced accordingly, e.g., through long-term money received from clients