U.S. evolving macroeconomic dynamics: a structural investigation

We fit a Bayesian time-varying parameters structural VAR with stochastic volatility to the Federal Funds rate, GDP deflator inflation, real GDP growth, and the rate of growth of M2. We identify 4 shocks–monetary policy, demand non-policy, supply, and money demand–by imposing sign restrictions on the estimated reduced-form VAR on a period-by-period basis. The evolution of the monetary rule in the structural VAR accords well with narrative accounts of post-WWII U.S. economic history, with (e.g.) significant increases in the long-run coefficients on inflation and money growth around the time of the Volcker disinflation. Overall, however, our evidence points towards a dominant role played by good luck in fostering the more stable macroeconomic environment of the last two decades. First, the Great Inflation was due, to a dominant extent, to large demand non-policy shocks, and to a lower extent to supply shocks. Second, imposing either Volcker or Greenspan over the entire sample period would only have had a limited impact on the Great Inflation episode, while imposing Burns and Miller would have resulted in a counterfactual inflation path remarkably close to the actual historical one. Although the systematic component of monetary policy clearly appears to have improved over the sample period, this does not appear to have been the dominant influence in post-WWII U.S. macroeconomic dynamics. JEL Classification: E32, E47, E52, E58Bayesian VARs, frequency domain, Great Inflation, identified VARs, Lucas critique, stochastic volatility, time-varying parameters

Inflation Globalization and the Fall of Country Specific Fluctuations

Inflation in the most industrialized economies of the world has an important international common component that accounts for the historical decline in the national rates. Country specific conditions explain the rise in inflation volatility of the late 1970s and early 1980s, and the subsequent fall. During the last decade, the world contribution to the variance of inflation has become increasingly more important than national contributions. Monetary policy was a relevant source of country specific fluctuations. Our conclusions are based on a time-varying dynamic factor model applied to a large panel of inflation indicators.international inflation, world and country factors,great moderation

Time-Varying Yield Curve Dynamics and Monetary Policy

The dynamics of the US economy are modelled using a time-varying structural vector autoregression that incorporates information from the yield curve. We find important changes in the dynamics of macroeconomic variables such as inflation and the federal funds rate. In addition our results suggest a change in the relationship between the yield curve and macroeconomic variables. The monetary policy shocks of the early 1980s explain a large portion of the persistence of inflation and the level of the yield curve. Shocks to the level of the yield curve account for the persistence of the federal funds rate. We use our time-varying model provides to revisit the evidence on the expectations hypothesis.Nelson-Siegel; time variation; inflation expectations; credibility building; evidence on expectations hypothesis

What lies beneath? A time-varying FAVAR model for the UK transmission mechanism

This paper uses a time-varying Factor Augmented VAR to investigate the evolving transmission of monetary policy and demand shocks in the UK. Simultaneous estimation of time-varying impulse responses of a large set of macroeconomic variables and disaggregated prices suggest that the response of inflation, money supply and asset prices to monetary policy and demand shocks has changed over the sample period. In particular, during the post-1992 inflation targeting period, monetary policy shocks started having a bigger impact on prices, a smaller impact on activity and began contributing more to overall volatility. In contrast, demand shocks had the largest impact on these variables before the 1990s. We also document changes in the response of disaggregated prices, with the median reaction to contractionary policy shocks becoming more negative and the distribution more dispersed post-1992. JEL Classification: C38, E44, E52Factor Augmented VAR, monetary policy, sign restrictions, timevarying coefficients, transmission mechanism

Using time-varying VARs to diagnose the source of ‘Great Moderations’: a Monte Carlo analysis

In this paper, we assess the ability of time-varying VAR models to correctly diagnose the source of ‘Great Moderations’ generated in simulations of a learning model. We find that, in general, they can. For example, in data sets with Great Moderations generated by good policy, the VAR correctly identifies a downward shift in the policy disturbance. And it shows that if the policy behaviour associated with the latter part of the sample (during which policy is conducted well) are applied to the earlier part of the sample, the implied variances of output, inflation and interest rates would have been much lower. An important caveat to our results is that they appear to be sensitive to the method used to identification of monetary policy shocks. When we identify monetary policy shocks using a Cholesky decomposition, the VAR provides quite clear evidence in favour of the correct explanation for our simulated Great Moderations When sign restrictions are used to identify the monetary policy shocks, conclusions from the counterfactual experiments are less precise. The contrast between our results and previous work based on Monte Carlo evidence using RE models suggests that the ability of VARs to correctly diagnose the source of the Great Moderation may be dependent on the nature of the expectations-formation process in the private sector.

International comovements, business cycle and inflation: a historical perspective

Using a dynamic factor model, we uncover four main empirical or international comovements in a long-run panel of real and nominal variables. First, the countribution of world comovements to domestic output growth has decreased over the post-WWII period. The contribution of regional comovements, however, has increased significantly. Second, the share of inflation variation due to a global factor has become larger since 1985. Third, over most of the post-WWII period, international comovements within regions have accounted for the bulk of fluctuations in business cycle and inflation. Fourth, prices have become significantly less countercyclical during the post-1984 sample, with the largest contribution due to external developments.Output growth; inflation; geographic identification; dynamic factor model

The Federal Reserve’s implicit inflation target and Macroeconomic dynamics. A SVAR analysis.

This paper identifies shocks to the Federal Reserve's inflation target as VAR innovations that make the largest contribution to future movements in long-horizon inflation expectations. The effectiveness of this scheme is documented via Monte-Carlo experiments. The estimated impulse responses indicate that a positive shock to the target is associated with a large increase in inflation, GDP growth and long-term interest rates. Target shocks are estimated to be a vital factor behind the increase in inflation during the pre-1980 period and are an important driver of the decline in long-term interest rates over the last two decades

Fiscal policy shocks and stock prices in the United States

This paper uses a range of structural VARs to show that the response of US stock prices to fiscal shocks changed in 1980. Over the period 1955-1980 an expansionary spending or revenue shock was associated with modestly higher stock prices. After 1980, along with a decline in the fiscal multiplier, the response of stock prices to the same shock became negative and larger in magnitude. We use an estimated DSGE model to show that this change is consistent with a switch from an economy characterised by active fiscal policy and passive monetary policy to one where fiscal policy was passive and the central bank acted aggressively in response to inflationary shocks

Dynamic Effects of Monetary Policy Shocks on Macroeconomic Volatility

We use a simple New Keynesian model, with firm specific capital, non-zero steady-state inflation, long-run risks and Epstein-Zin preferences to study the volatility implications of a monetary policy shock. An unexpected increase in the policy rate by 150 basis points causes output and inflation volatility to rise around 10% above their steady-state standard deviations. VAR based empirical results support the model implications that contractionary shocks increase volatility. The volatility effects of the shock are driven by agents' concern about the (in) ability of the monetary authority to reverse deviations from the policy rule and the results are re-enforced by the presence of non-zero trend inflation

U.S. evolving macroeconomic dynamics: a structural investigation

We fit a Bayesian time-varying parameters structural VAR with stochastic volatility to the Federal Funds rate, GDP deflator inflation, real GDP growth, and the rate of growth of M2. We identify 4 shocks–monetary policy, demand non-policy, supply, and money demand–by imposing sign restrictions on the estimated reduced-form VAR on a period-by-period basis. The evolution of the monetary rule in the structural VAR accords well with narrative accounts of post-WWII U.S. economic history, with (e.g.) significant increases in the long-run coefficients on inflation and money growth around the time of the Volcker disinflation. Overall, however, our evidence points towards a dominant role played by good luck in fostering the more stable macroeconomic environment of the last two decades. First, the Great Inflation was due, to a dominant extent, to large demand non-policy shocks, and to a lower extent to supply shocks. Second, imposing either Volcker or Greenspan over the entire sample period would only have had a limited impact on the Great Inflation episode, while imposing Burns and Miller would have resulted in a counterfactual inflation path remarkably close to the actual historical one. Although the systematic component of monetary policy clearly appears to have improved over the sample period, this does not appear to have been the dominant influence in post-WWII U.S. macroeconomic dynamics