There is growing consensus among researchers, policymakers and other stakeholders that the practice of female early marriage has adverse consequences for the women who experience them, their families and the wider population. While it is evident that the practice of female early marriage is entwined with longstanding customs and traditions, there is also good reason to believe that economic factors are important drivers behind current behaviour and underpin a range of solutions being explored by policymakers. This chapter provides an economic perspective on the issue. It examines the literature for theories and evidence relating to the economic causes and consequences of female early marriage and the e¢ cacy of alternative policies, and highlights current knowledge gaps.