textThis dissertation contains three chapters in macroeconomics that study the financing and provision of unemployment insurance. The first chapter studies cross-sectional differences in U.S. state provision of unemployment insurance and the distortionary effects of federal unemployment benefit subsidies in a dynamic labor search model. The paper has two main findings. First, differences in the job-separation rate and the job-finding rate within the model can generate the negative correlation between the average benefit provided by a state and the state's unemployment rate, as observed in the data. Secondly, the model shows how the federal subsidization of unemployment benefit extensions in high-unemployment states causes an over-provis...