Over the past decades, growth in foreign direct investment (FDI) has stimulated significant attempts at developing theories that explain this trend. One line of this research explores the relationship between exchange rates and FDI. There is no consensus about the nature of this relationship in either the theoretical or empirical work. In this article, we critically appraise this body of work, and find the theoretical studies to be making ground in exploring the complexities of FDI, but the empirical evidence to be constrained by data problems.