This paper will explore whether or not the Phillips curve relationship exists for the 1990s. I will attempt to estimate a Phillips curve for the past decade using data for the United States. In section two, I will explain the theory behind the Phillips curve and how the theory has evolved. In section three, I will present a literature review discussing previous research and results. Section four will present my empirical model and data. In section 5, I will present my results and discuss econometric problems such as serial correlation that may lead to biased estimates. In section six I will briefly conclude the paper.