Financial Regulation in a Quantitative Model of the Modern Banking System

This study at the intersection of macroeconomics and banking explores the optimal regulation of banks. Studying and quantifying the effects of capital requirements in a model that features regulated (commercial) and unregulated (shadow) banks, the authors find that a higher capital requirement makes regulated banks safer, but does not affect the riskiness of shadow banks. The net benefit of such a policy would depend on the level of fragility of the unregulated banks.