Volume 2, Issue 3 pp. 419-453
Open Access

Are the responses of the U.S. economy asymmetric in energy price increases and decreases?

Lutz Kilian

Lutz Kilian

University of Michigan and CEPR; [email protected]

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Robert J. Vigfusson

Robert J. Vigfusson

Federal Reserve Board; [email protected]

The views expressed in this paper are solely the responsibility of the authors and should not be interpreted as reflecting the views of the Board of Governors of the Federal Reserve System or of any other person associated with the Federal Reserve System. We thank Ana María Herrera, James Hamilton, the editor, the referees, and numerous seminar participants for helpful comments.

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First published: 11 November 2011
Citations: 421

Abstract

How much does real gross domestic product (GDP) respond to unanticipated changes in the real price of oil? Commonly used censored oil price vector autoregressive models suggest a substantial decline in real GDP in response to unexpected increases in the real price of oil, yet no response to unexpected declines. We show that these estimates are invalid. Based on a structural model that encompasses both symmetric and asymmetric models as special cases, correctly computed impulse responses are of roughly the same magnitude in either direction, consistent with formal tests for symmetric responses. We discuss implications for theoretical models and for policy responses to energy price shocks.

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