Crude Oil as Safe Haven During Wars

Posted in Commodity Futures


Wars both consume crude oil and potentially disrupt supplies. Do they reliably drive up oil price? In their November 2012 paper entitled “Crude Oil as a Safe Haven Asset in Times of War”, Tomasz Wisniewski and Ayman Omar examine the behaviors of crude oil price and stock market indexes around severe international crises and wars. They construct a sample of crises from the July 2010 version of the International Crisis Behavior (ICB) database, excluding events scoring below “6” on the severity scale (such as protests, diplomatic sanctions and withholding economic aid). They also extract a war subsample (border clash/crossing by military forces, invasion of air space, sea/air military operations and large-scale military attacks/bombing). They use the Cushing, Oklahoma West Texas Intermediate (WTI) spot price as crude oil price, but also test the Brent spot price as a robustness check. They consider S&P 500 and MSCI World as representative stock market indexes. They define the crisis/war impact interval as 50 trading days before through 50 trading days after outbreak. They define the effect of a crisis/war on price as the “abnormal” return compared to price behavior during the 150 trading days prior to the impact interval. Using daily crude oil spot price and stock index levels around 64 instances of severe international crises and 43 wars during January 1987 through December 2007, they find that: (more…)

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