This dissertation investigates three different sources of inequality and policy tools to deal with the issues. The first chapter examines whether an increase in public school spending can enhance equality of opportunity as measured by intergenerational mobility. To identify the causal impact of school spending, I exploit the plausibly exogenous variation in spending induced by the court-mandated school finance reforms in the United States. I find that a ten percent increase in school spending raises college attendance rates by about five percentage points for disadvantaged children and about two percentage points for advantaged children. Despite substantial school spending effects on college attendance rates, there is little evidence that s...