2012年-IMF国际货币组织全球_The_Effectiveness_of_Monetary_Policy_Transmission_Under_Capital_Inflows_Evidence_from_Asia_19页_1mb

Summary of "The Effectiveness of Monetary Policy Transmission Under Capital Inflows: Evidence from Asia"

Core Content

This paper investigates the effectiveness of the monetary policy transmission mechanism in emerging Asian economies, particularly during periods of large capital inflows. It uses empirical analysis to assess the role of global and domestic factors in shaping long-term interest rates and the impact of different interest rates on economic activity. The study concludes that while long-term interest rates in Asia are significantly influenced by global factors, the monetary policy transmission mechanism remains effective through short-term interest rates.

Main Objectives

• To evaluate whether global factors impair the effectiveness of monetary policy transmission in Asia.
• To determine the relative importance of short-term versus long-term interest rates in influencing economic activity.
• To analyze the impact of large capital inflows on the transmission mechanism.

Key Findings

1. Global Factors Influence Long-Term Rates

• Long-term interest rates in Asia are predominantly driven by global factors, especially U.S. long-term interest rates and global risk aversion (measured by the VIX).
• About 40% of the variation in long-term Asian bond yields can be explained by a common global factor.
• U.S. long-term interest rates and the VIX account for 35% and 25% of the variation in the estimated common factor, respectively.
• The influence of global factors increases with the maturity of the yield curve, as foreign investors are more active in long-term segments.

2. Monetary Policy Transmission is Effective via Short-Term Rates

• The monetary policy transmission mechanism in Asia operates primarily through short-term interest rates, not long-term rates.
• Short-term policy rate changes account for 25% of the average output variation in Asian emerging economies after one year, compared to 5% from long-term rates.
• In a 6-month horizon, short-term rates explain 30% of output variation, versus 3% from long-term rates.
• Short-term interest rates are more relevant for economic decisions due to their direct use in pricing bank loans and mortgages in the region.

3. Capital Inflows Weaken Transmission, but Not Eliminate it

• Large capital inflows reduce the effectiveness of monetary policy transmission, weakening the link between policy rates and lending rates.
• The short-term pass-through coefficient declines by about 40%, and the long-term coefficient by 30% during capital inflow surges.
• Despite this weakening, the transmission mechanism remains powerful, with pass-through coefficients of 0.3 (short-term) and 0.6 (long-term) even in the presence of large capital inflows.

Methodology

• Generalized Dynamic Factor Model (GDFM): Estimates the common factor in Asian long-term bond yields, linking it to U.S. long-term rates and the VIX (global risk aversion).
• Structural Vector Autoregression (SVAR): Analyzes the structural relationship between domestic and foreign interest rates, and their impact on economic activity.
• Fixed-effects panel model: Assesses the effect of capital inflows on the pass-through from policy rates to market rates.

Key Variables and Data

• Yields on Asian 10-year government bonds are used to estimate the common factor.
• U.S. 10-year bond yields and VIX are used as proxies for global factors.
• Capital account openness is measured using the Chinn-Ito index.
• The analysis covers eight Asian countries: China, India, Indonesia, Korea, Malaysia, the Philippines, Taiwan Province of China, and Thailand, over the period 2000–2010.

Policy Implications

• Monetary policy remains effective in Asia, particularly through short-term rates.
• Financial openness increases the sensitivity of domestic rates to global factors.
• Macroprudential policies should be considered as a complement to monetary policy during large capital inflow episodes, as tightening monetary policy could exacerbate inflows.
• Policymakers should be aware of the potential for global factors to dominate domestic rate determination as financial integration deepens.

Conclusion

• The paper highlights the dual role of global and domestic factors in shaping interest rates in Asia.
• While global factors have a strong influence on long-term rates, the monetary policy transmission mechanism remains effective through short-term rates.
• Large capital inflows weaken the transmission but do not eliminate its effectiveness.
• Continued financial integration may increase the influence of global factors, requiring a more nuanced policy approach in the region.