2013年-IMF国际货币组织全球_Labor_Force_Participation_and_Monetary_Policy_in_the_Wake_of_the_Great_Recession_60页_887kb

Summary of "Labor Force Participation and Monetary Policy in the Wake of the Great Recession"

Core Content

This paper investigates the relationship between labor force participation (LFPR) and monetary policy in the aftermath of the Great Recession, emphasizing the role of cyclical factors in explaining the significant decline in LFPR.

Main Points

1. Labor Force Participation Trends

• The U.S. labor force participation rate fell by approximately 2.5 percentage points from 2007 to 2013, which is much greater than the modest decline projected by the Bureau of Labor Statistics (BLS) in 2007.
• The employment-to-population ratio remained near its post-crisis trough, even as the unemployment rate returned to a level halfway from its peak.

2. Cyclical vs. Demographic Factors

• The paper provides empirical evidence that cyclical factors account for the majority of the decline in LFPR, rather than demographic changes.
• The participation gap (deviation from the trend path implied by demographics) was around 2 percentage points in early 2013, comparable in magnitude to the unemployment gap.
• The employment gap (shortfall of employment-to-population rate from its pre-crisis trend) is roughly the sum of the participation and unemployment gaps, with each contributing about half to the total decline.

3. Empirical Evidence

• Figure 1 shows the sharp decline in LFPR and employment-to-population ratio, contrasting with the more moderate decline in the unemployment rate.
• Figure 2 illustrates that LFPR has been practically acyclical during the postwar period, with little cyclical variation.
• The HP filter analysis shows that the standard deviation of LFPR is much smaller than that of the unemployment rate, and the correlation between the two is statistically significant but modest.

4. Model and Impulse Responses

• A New Keynesian model is developed to capture the inertial nature of LFPR, which responds gradually to changes in the unemployment rate due to high adjustment costs.
• The impulse response function from a bivariate VAR indicates that the LFPR decline is much slower and less pronounced than the unemployment rate decline.
• The LFPR shows greater inertia than the unemployment rate, with its peak response occurring twice as long as that of unemployment.

5. Implications for Monetary Policy

• A monetary policy rule that responds to broader measures of labor market slack (including the participation gap) may lead to faster recovery of LFPR.
• Allowing the unemployment rate to overshoot its natural rate can accelerate the closure of the participation gap.
• However, this strategy may increase inflation to some extent, creating a trade-off between inflation stabilization and resource slack.
• Non-inertial Taylor rules that respond to broader labor market slack can lead to more rapid recovery in LFPR compared to standard rules that focus only on the unemployment gap.

Key Findings

• Cyclical factors have played a dominant role in the post-2007 decline in LFPR.
• Demographic trends have had a modest effect, reinforcing the overall decline but not explaining it fully.
• The participation gap is a crucial indicator of labor market slack, especially in deep and prolonged recessions.
• The inertial behavior of LFPR implies that it may remain below trend even as the economy begins to recover.
• Monetary policy should consider broader measures of labor market slack, including the participation gap, to effectively address the post-recession recovery.

Policy Implications

• The Great Moderation literature, which focused on unemployment gaps, may not be sufficient for post-Great Recession policy design.
• Non-inertial Taylor rules that respond to broader labor market slack can lead to more effective recovery in LFPR and stable inflation.
• A trade-off exists between inflation stability and resource slack, which may necessitate more flexible monetary policy rules.

Conclusion

The paper highlights the importance of labor force participation as a business cycle indicator, especially in the wake of the Great Recession. It argues that monetary policy rules need to be re-evaluated to account for the cyclical component of LFPR, which may have crucial implications for economic recovery and inflation control.