Theoretical research in corporate finance is critical for our understanding of real-world phenomena, for interpreting empirical results, and for deriving policy implications. We discuss the benefits and limitations of research in corporate finance theory and link them to the nine articles in this special issue on “Corporate Finance Theory.” We provide a perspective on the nine articles in this special issue, and outline our perception of how future research may evolve. We also review several themes that emerge out of the articles, which we think deserve more attention from theorists going forward: interactions between financial markets and corporate finance and dynamic models of corporate decisions, such as capital structure and managerial compensation.