This paper discusses concentration in consumer credit markets with a focus on fintech lenders and residential mortgages. We present evidence that shows that concentration among fintech lenders is significantly higher than that for bank lenders and other nonbank lenders. The data also show that...

We develop a model of banking industry dynamics to study the quantitative impact of capital requirements on equilibrium bank risk taking, commercial bank failure, interest rates on loans, and market structure. We propose a market structure where big banks with market power interact with small,...