Access to Banking and the Role of Inequality and the Financial Crisis

We study access to banking and how it is related to banks' rate of return on investments and the distribution of income. We develop our empirical framework through a theoretical supply-side model of bank deposit services with a consumer population heterogeneous in income. We use this model to show how decreases in the interest rate margin and higher income disparities lead to an increase in the proportion of unbanked. Using localized US household data from 2009, 2011, 2013 and 2015 we find strong empirical evidence for the predictions of the model. We then structurally estimate our model to estimate the value of having a checking account relative to alternative financial services and to quantify the effects of actual changes in the interest rate margin and the distribution of income that occurred in the aftermath of the 2008 financial crisis.