Economic frictions such as information asymmetries and economic forces such as economies of scale and scope give rise to financial intermediaries. These frictions and forces also shape market structure. While technological advances are not new to finance, digital innovation has brought major...

Up to a point, banks and markets both foster economic growth. Beyond that limit, expanded bank lending or market-based financing no longer adds to real growth. But when it comes to moderating business cycle fluctuations, banks and markets differ considerably in their effects. In normal...