Since bank deposits and currency are substitutes and banks have monopoly power, higher nominal interest rates lead to higher deposit spreads. This raises the cost of transaction services, increases bank profits and attracts entry into the banking sector. Taking these effects into account, a one...

I study expertise acquisition in a model of trading under asymmetric information. I propose and implement a method to estimate the ratio of social to private marginal value of expertise. This can be decomposed into three sufficient statistics: traders' average profits, the fraction of bad assets...

Since bank deposits and currency are substitutes and banks have monopoly power, higher nominal interest rates lead to higher deposit spreads. This raises the cost of transaction services, increases bank profits and attracts entry into the banking sector. Taking these effects into account, a one...