Do oil prices affect inflation?

Goal of bachelor thesis is exploration of relationship between development of oil price and inflation in United States of America, Federal Republic of Germany and Japan. Theoretical part is focused on previous research, development of oil price and analysis of prices of oil. My research has been conducted with help of regression and correlation analysis in three time periods in years 1970-1983, 1984-1999, 2000-2014 and is based on quarterly data. Based on development of selected macroeconomic variables is investigated hypothesis that there is small positive correlation between oil price and inflation. This correlation should be strongest in the 80s of last century, than it should be minimalized till turn of millennium, when it should be stronger again. Result of my work verifies the hypothesis about small positive correlation. However development of this correlation was different than I presumed