Evolving Phillips Trade-Off

45 Pages Posted: 26 Apr 2010

See all articles by Luca Benati

Luca Benati

European Central Bank (ECB)

Date Written: April 1, 2010


We characterise the evolution of the U.S. unemployment-inflation trade-off since the late XIX century era via a Bayesian time-varying parameters structural VAR. The Great Inflation episode appears as historically unique along several dimensions. In particular, the shape of the ‘Phillips loop’ - which is defined in terms of the impulse-response functions of inflation and unemployment’s deviations from equilibrium - was, during those years, clearly out of line with respect to the rest of the sample period for all structural innovations except money demand shocks. During the Great Depression, on the other hand, the Phillips trade-off did not exhibit any peculiar qualitative feature, so that, when seen through these lenses, the 1930s only stand out because of the sheer size of the macroeconomic fluctuation. The historical evolution of the Phillips trade-off exhibits virtually no connection with the evolution of the extent of trade openness of the U.S. economy. Although, by itself, this does not rule out a possible impact of globalization on the slope of the trade-off in recent years, it clearly suggests that, historically, the evolution of the trade-off has been dominated by factors other than trade openness.

Keywords: Phillips trade-off, Lucas critique, Bayesian VARs, time-varying parameters, stochastic volatility, identified VARs, Great Inflation, Great Depression, globalisation

Suggested Citation

Benati, Luca, Evolving Phillips Trade-Off (April 1, 2010). ECB Working Paper No. 1176, Available at SSRN: https://ssrn.com/abstract=1585204

Luca Benati (Contact Author)

European Central Bank (ECB) ( email )

Sonnemannstrasse 22
Frankfurt am Main, 60314

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