Buch, Claudia M.; Bremus, Franziska; Russ, Katheryn; … - National Bureau of Economic Research (NBER) - 2013
Does the mere presence of big banks affect macroeconomic outcomes? In this paper, we develop a theory of granularity (Gabaix, 2011) for the banking sector, introducing Bertrand competition and heterogeneous banks charging variable markups. Using this framework, we show conditions under which...