This paper explores how different margins of market share are related to markups. Using merged microdata on producers and consumers, we document that a firm's market share is mainly related to its number of customers, while its price-cost markup is associated only with its average sales per...

This paper studies how measured beliefs can be used to identify monetary non-neutrality. In a general equilibrium model with both nominal rigidities and endogenous information acquisition, we analytically characterize firms' optimal dynamic information policies and how their beliefs affect...