Why are the 2000s so different from the 1970s? A structural interpretation of changes in the macroeconomic effects of oil prices in the US

Olivier Blanchard and Marianna Riggi ()

No 835, Temi di discussione (Economic working papers) from Bank of Italy, Economic Research and International Relations Area

Abstract: In the 1970s, large increases in the price of oil were associated with sharp decreases in output and large increases in inflation. In the 2000s, even larger increases in the price of oil were associated with much milder movements in output and inflation. Using a structural VAR approach, Blanchard and Gali (2009) argued that this reflected a change in the causal relation from the price of oil to output and inflation. They then argued that this change could be due to a combination of three factors, namely, a smaller share of oil in production and consumption, lower real wage rigidity and better monetary policy. Their argument, based on simulations of a simple new-Keynesian model, was informal. Our purpose in this paper is to take the next step, and to estimate the explanatory power and contribution of each of these factors. To do so, we use a minimum distance estimator that minimizes, over the set of structural parameters and for each of two samples (pre- and post-1984), the distance between the empirical SVAR-based impulse response functions and those implied by a new-Keynesian model. Our empirical results point to an important role for all three factors.

Keywords: oil prices; wage rigidities; monetary policy credibility. (search for similar items in EconPapers)
JEL-codes: E20 E32 E52 (search for similar items in EconPapers)
Date: 2011-11
New Economics Papers: this item is included in nep-cba, nep-ene and nep-mac
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Citations: View citations in EconPapers (5)

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