Credit Crunch
A credit crunch is a sudden reduction in the availability of credit, or a sharp increase in its cost, that occurs when lenders become unwilling or unable to extend loans. A credit crunch can arise from a deterioration in the financial condition of banks, from a loss of confidence in borrowers, or from a generalised increase in risk aversion, and it can severely disrupt economic activity by cutting off the financing on which firms and households depend.
Definition
A credit crunch is a situation in which the supply of credit contracts sharply, independently of changes in interest rates. It may be distinguished from a normal increase in borrowing costs, because a credit crunch involves a reduction in the availability of credit even at prevailing interest rates—or, in some cases, the complete unavailability of credit to certain borrowers.
The essential feature of a credit crunch is a breakdown in the normal functioning of credit markets. Lenders become reluctant to lend, either because their own capital has been depleted, because they fear that borrowers will default, or because they cannot assess the risk of lending under conditions of heightened uncertainty.
Causes
A credit crunch can be triggered by several factors.
Losses on existing loans deplete banks' capital, reducing their capacity to extend new credit. This was a central feature of the global financial crisis, when losses on mortgage-related securities impaired the capital of many institutions.
A sudden increase in uncertainty makes lenders reluctant to lend, because they cannot assess the creditworthiness of borrowers. Uncertainty about the value of collateral, the soundness of counterparties, and the future path of the economy all contribute.
A deterioration in borrower creditworthiness, whether actual or perceived, causes lenders to tighten lending standards.
Funding pressures arise when banks cannot obtain the wholesale funding on which they rely, forcing them to reduce lending. This occurred during the financial crisis, when the market for short-term funding froze.
Regulatory changes or increased capital requirements can also contribute to a credit crunch, as banks reduce lending to meet higher standards.
Contagion through the financial system can spread a credit crunch from one institution or market to others.
Mechanisms
A credit crunch operates through several channels.
Reduced availability of loans means that firms and households cannot obtain credit even if they are willing to pay higher interest rates. This is the defining feature: the constraint is quantity, not price.
Higher interest rates may accompany a credit crunch, as lenders demand higher compensation for perceived risk, further reducing demand for credit.
Tighter lending standards mean that lenders apply more stringent criteria, requiring higher collateral, more documentation, or stronger credit histories.
Reduced maturity of loans means that lenders may be willing to lend only for shorter periods, increasing the refinancing risk faced by borrowers.
Withdrawal of credit lines occurs when lenders refuse to renew or reduce existing credit facilities.
Economic consequences
The consequences of a credit crunch can be severe.
Reduced investment: firms unable to obtain credit must postpone or abandon investment projects, reducing capital formation and future growth.
Reduced consumption: households facing tighter credit limits reduce spending, particularly on durable goods such as cars and housing.
Business failures: firms that depend on credit for working capital may fail if financing is withdrawn, even if their underlying business is viable.
Reduced economic growth: the combination of lower investment and consumption reduces aggregate demand and slows growth.
Deflationary pressure: a credit crunch can contribute to deflation, as reduced demand and forced asset sales push prices down.
A feedback loop: by reducing economic activity, a credit crunch worsens the financial condition of borrowers, causing further losses for lenders and worsening the crunch—a vicious cycle.
Historical examples
The most prominent recent example is the credit crunch that followed the collapse of the United States housing market and the onset of the global financial crisis in 2007–2008. Losses on mortgage-related securities impaired the capital of financial institutions, and uncertainty about the extent of the losses paralysed interbank lending. The result was a sharp contraction in credit that deepened and prolonged the recession. Similar dynamics have been observed in other financial crises, including the Japanese banking crisis of the 1990s and the Asian financial crisis of 1997–1998.
Policy responses
Policymakers use several tools to address credit crunches.
Liquidity provision: central banks can provide liquidity to banks through lending facilities, helping them to meet funding needs and continue lending.
Capital injections: governments may inject capital into banks, either by purchasing equity or by purchasing troubled assets, to restore their lending capacity.
Guarantees: guarantees of bank liabilities can restore confidence and reduce funding pressures.
Monetary easing: lowering interest rates can reduce borrowing costs and stimulate demand for credit.
Credit easing: central banks may purchase securities or provide funding to specific markets to restore the flow of credit.
Regulatory forbearance: temporary relaxation of regulatory requirements may allow banks to continue lending.
The effectiveness of these measures depends on the nature of the crunch and the condition of the financial system. In severe cases, restoring the flow of credit requires comprehensive action to restore confidence and capital.