Lender of Last Resort

The lender of last resort is the institutional function — typically exercised by a central bank such as the Federal Reserve — of providing emergency liquidity to financial institutions that are solvent but illiquid, preventing their collapse from propagating through the financial network. Walter Bagehot's 1873 dictum — lend freely, at penalty rates, against good collateral — is the classical design pattern, but every major crisis has required violating all three conditions. The function creates an inescapable tension: it prevents systemic collapse by rescuing institutions that took excessive risks, thereby undermining the moral hazard discipline that is supposed to prevent excessive risk-taking in the first place. The lender of last resort is not a firefighter; it is an arson investigator who must also put out the fire, and who knows that the buildings he saves will be rebuilt with the same flammable materials. The true challenge is not the liquidity injection itself, but the design of a rescue mechanism that does not become a subsidy for risk.