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...

Using a unique, large panel of German firms, we examine whether participation in business groups reduces the sensitivity of investment to cash flow. The main finding is that the reduction in the sensitivity is small for small firms and negligible for medium and large firms. We argue that by...

Using a sample of fare quotes for non-stop travel from New York to London, this paper investigates the dynamics of offered fares as the departure date nears. We find that the general trend is toward fare increase at an accelerated rate as the departure date approaches. Clear differences in...