This paper focuses on the causes of divorce. Section I developsa theoretical analysis of marital dissolution incorporating uncertaintyabout the outcomes of marital decisions into a framework of utilitymaximization and the marriage market. Section II explores the implica-tions of the theoretical analysis with cross-sectional data,primarilythe 1967 Survey of Economic Opportunity and the Terman sample. Therelevance of both the theoretical and empirical analyses in explainingthe recent acceleration in the U.S. divorce rate is discussed.