In this paper I document two new facts. First, bank net-interest margins (NIM) are insensitive to the short rate on average but this masks substantial heterogeneity in the cross section. I find cross sectional variation ranging from a -30bp to +40bp change in one quarter NIM after a 100bp change...

I provide new evidence that large and small banks have different external financing costs, which generates cross sectional variation in a deposits market pricing power channel of monetary policy transmission. I do so by exploiting a natural experiment using anti-trust related bank branch...