Banking Risks, Shadow Banking, and Financial Crises
Core Risks in the Banking Business Model
Banks face several risks due to their fundamental business model. They issue liabilities, such as deposits and borrowing, to acquire funds, and use those funds to hold income-earning assets, such as loans and securities. Banks generate profits when the return on their assets exceeds the cost of their liabilities, but this structure creates inherent vulnerabilities.
Key Banking Risks
- Liquidity Risk: The risk of being unable to meet short-term financial obligations.
- Credit Risk: The risk that borrowers will default on their loans.
- Market Risk: The risk that the value of assets, such as securities, will decline.
- Interest Rate Risk: The risk that fluctuations in interest rates will negatively impact the spread between asset returns and liability costs.
Banks manage these risks through asset management, portfolio diversification, and maintaining liquid assets. Poor management of these risks can lead to liquidity or solvency crises, necessitating a careful balance between profitability, capital adequacy, and prudent selection.
The Shadow Banking System
A shadow bank is a non-bank financial institution that performs banking-like functions without being a regulated, deposit-taking entity. These institutions participate in credit intermediation by channeling money from savers to borrowers, often engaging in maturity transformation outside the traditional regulated system.
Vulnerabilities of Shadow Banks
- Short-term Funding Dependence: Reliance on volatile money-market borrowing and repurchase agreements.
- Regulatory Arbitrage: Operating outside traditional banking supervision.
- Lack of Safety Nets: No access to central bank emergency lending or deposit insurance.
- Asset Opacity: Holding complex, opaque assets like MBSs, CDOs, and CDSs that are difficult to price during market stress.
Originate-to-Hold vs. Originate-to-Distribute
The distinction between these two models defines how loans are managed after creation:
- Originate-to-Hold: The traditional model where a bank keeps a loan on its balance sheet until maturity, incentivizing careful borrower assessment.
- Originate-to-Distribute: A securitization-based model where loans are packaged and sold to investors.
While the originate-to-distribute model expanded credit, it introduced perverse incentives, as risk was passed along the chain, leading to weakened credit discipline and increased systemic complexity.
Comparing the Great Depression and Great Recession
Despite differences in duration, the Great Depression (1930s) and the Great Recession (2007–2008) share critical similarities:
- Boom-to-Bust Cycles: Both were preceded by periods of speculation and asset bubbles.
- Credit Expansion: Both crises were fueled by excessive credit, whether through 1920s margin buying or 2000s mortgage securitization.
- Systemic Failures: Both involved major banking or shadow banking panics.
- Liquidity to Solvency: In both eras, liquidity pressures triggered fire sales, turning liquidity crises into solvency crises.
- Economic Contagion: Both crises spread from the financial sector to the real economy, resulting in sharp declines in production and rising unemployment.