Oil prices have gotten crushed for the last six months. The extent to which that was caused by an excess of supply or by a slowdown in demand has big implications for where prices will head next. People wishing for a big rebound may not want to read farther.
Goldman Sachs released an intriguing analysis on Wednesday that shows what many already suspected: The big culprit in the oil crash has been an abundance of oil flooding the market. A massive supply shock in the second half of last year accounted for most of the decline. In December and January, slowing demand contributed to the continued sell-off. Goldman was able to quantify these effects.
Goldman’s model is simple on its face, looking at just two variables over time: the price of oil and the value of U.S. stocks (as measured by the S&P 500). The idea is that the stock market is a pretty good indicator of economic demand. So when stocks move in tandem with oil prices, demand is in the driver’s seat. When the price of oil moves in the opposite direction of stocks, the shock is coming from supply.