2011年-IMF国际货币组织全球_Republic_of_Korea_Selected_Issues_20页_1mb

Summary of "Republic of Korea: Selected Issues"

Core Content

This document is a staff report prepared by the International Monetary Fund (IMF) for the Republic of Korea, analyzing the impact of financial stability considerations on the conduct of monetary policy. It was published on July 14, 2011, and provides insights into how financial sector developments can influence macroeconomic outcomes, particularly in the context of the 2008 global financial crisis.

The report investigates the limitations of a conventional inflation targeting (IT) framework in responding to financial shocks and proposes alternative inflation targeting frameworks that incorporate financial stability indicators. It uses a dynamic stochastic general equilibrium (DSGE) model to simulate the effects of different types of shocks on the economy, including financial sector risk premium shocks, external demand shocks, and technology shocks.

Main Views

• Financial shocks can have significant and delayed effects on real economic activity, often more so than conventional monetary policy indicators.
• The conventional IT framework is limited in its ability to preemptively respond to financial shocks, as it focuses only on inflation and output indicators.
• Incorporating financial stability indicators into the monetary policy framework can improve the ability of the central bank to smooth business cycle fluctuations and reduce output and price volatility.
• There is a trade-off between financial stability and price stability: some indicators may improve output stability at the cost of higher short-term inflation, while others may enhance both.

Key Financial Stability Indicators

The report evaluates four financial stability indicators:

1. Nonfinancial sector borrowing spread: Reflects the cost of external financing and is linked to leverage. A higher spread indicates increased financial risk.
2. Banks' foreign exchange leverage: Captures the vulnerability of the banking sector to external liquidity shocks.
3. Credit volume: Indicates the level of credit expansion, which can support or amplify financial vulnerabilities.
4. House price volatility: Affects consumer inflation and reflects the financial health of households.

Key Findings

• ITFS rules (Inflation Targeting with Financial Stability) outperform the benchmark IT rule in reducing output and price volatility, particularly in response to financial shocks.
• The effectiveness of ITFS rules depends on the weight assigned to each financial stability indicator in the central bank's policy function.
• Monitoring house prices improves both output and price stability due to their direct impact on inflation.
• Credit volume can be used in two ways: encouraging or discouraging credit, depending on the policy objective.
• The nonfinancial sector risk premium and foreign exchange leverage also contribute to financial stability, but may lead to higher inflation in the short run.
• Technology shocks and external demand shocks have similar effects under both IT and ITFS frameworks, suggesting that the central bank does not need to react differently to these types of shocks.

Implications

• Financial stability considerations should be integrated into monetary policy to better insulate the economy from shocks.
• The central bank should be able to respond proactively to financial vulnerabilities, rather than waiting for their effects to be visible in inflation and output indicators.
• The choice of financial stability indicators depends on the characteristics of the economy and the types of shocks it faces.
• The ITFS framework allows the central bank to maintain its mandate of price stability while also considering financial stability, without expanding its mandate.

Conclusion

The report concludes that by incorporating financial stability indicators into the inflation targeting framework, the central bank can improve its ability to stabilize the economy and reduce the impact of financial shocks. This approach is particularly beneficial in a small open economy like Korea, where external shocks and financial vulnerabilities can have significant macroeconomic consequences. The findings suggest that while there may be trade-offs between financial and price stability, the ITFS framework can offer a more preemptive and effective response to macrofinancial shocks.