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...

Does the mere presence of big banks affect macroeconomic outcomes? Gabaix (2011) shows that idosyncratic shocks can have aggregate effects if the distribution of firm sizes in manufacturing follows a power law distribution. Our contribution is two-fold. First, we expand the theory of granularity...

Affiliates of German firms in Eastern Europe differ from those in the rest of the world. They have smaller sales and they employ more labor. Labor productivity is thus lower than in affiliates of German firms elsewhere. Moreover, multinational activity in Eastern Europe is mostly unilaterally...

Exporters and multinationals are larger and more productive than their domestic counterparts. In addition to productivity, financial constraints and labor market constraints might constitute barriers to entry into foreign markets. We present new empirical evidence on the extensive and intensive...

Recent literature on multinational firms has stressed the importance of low productivity as a barrier to the cross-border expansion of firms. But firms may also need external finance to shoulder the costs of entering foreign markets. We develop a model of multinational firms facing real and...