Oil Price Changes and the Oslo Stock Exchange A study of how oil price changes affected the Oslo Stock Exchange between 1990-2009

This paper addresses how oil price changes affect the Oslo Stock Exchange. Multiple linear regressions with eight explanatory variables have been used to investigate the relationship between oil and the Oslo Stock Exchange between 1990-2009. The time period has also been divided into two sub periods to investigate if the effects of oil price changes have become more prominent over the years. After deliberating between univariate and multivariate models we decided to use a multiple linear regression. The six sources of error of the OLS model have been thoroughly discussed and examined. The variables used in the regressions have been selected by revising previous research and economic theory. The results for the entire period show that oil had a significant positive effect on the stock market with a coefficient of 0.24. This was not unexpected and is in accordance with our hypothesis. The same result was obtained for the first sub-period, 1990-1999. However, looking at the second sub period, 2000-2009, oil proved not to be significant. This result was surprising as it is contradictory to most previous research