Lender of Last Resort
Central banking theory (Bagehot’s rule) · Lombard Street: A Description of the Money Market (1873)
A central bank’s role as lender of last resort provides emergency liquidity to solvent banks during financial panics to prevent systemic collapse.
Core Concepts
The Problem
Financial panics trigger bank runs and a vicious cycle of asset fire sales that can destroy the financial system.
The Claim
The central bank must lend freely to solvent institutions against good collateral at a penalty rate to halt contagion while discouraging moral hazard.
Key Evidence
- •2008 financial crisis – Fed purchased MBS and toxic assets to stabilize banks
- •19th-century UK panics resolved by Bank of England following Bagehot’s principles
- •Numerous historical episodes of successful and failed lender‑of‑last‑resort interventions
Practical Implication
A credible lender of last resort prevents needless bank failures, but without adequate safeguards it can encourage excessive risk-taking.
Nuance & Limits
Distinguishing a liquidity crisis from an insolvency crisis is the central challenge; lending to insolvent institutions can delay necessary restructuring.
Source Material
Citation Density
High – foundational concept in monetary economics and central banking
Gaps
- ⚠ Precise boundary between illiquidity and insolvency
- ⚠ Optimal design of penalty rates in modern interconnected markets
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