Industry concentration—the share of sales or output accounted for by the largest firms within an industry—has received widespread attention recently, in part because concentration has generally risen in recent decades (figure 1). Measurement challenges are at the core of concentration-based...

Concentration of insured deposit funding among the top four commercial banks in the U.S. has risen from 15% in 1984 to 44% in 2018, a roughly three-fold increase. Regulation has often been attributed as a factor in that increase. The Riegle-Neal Interstate Banking and Branching Efficiency Act of...

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...