Firms' heterogeneity, incomplete information, and pass through
A large body of empirical work documents that prices of traded goods change by a smaller proportion than real exchange rates between the trading countries (incomplete pass through) I present a Ricardian model of trade and international price setting with heterogeneous firms, Bertrand competition and incomplete information. The model implies that: 1) firm level pass through is incomplete and a U shaped function of firm level productivity and market share; and 2) controlling for firm market share, producers operating under incomplete information, like for example new entrants in a market, exhibit lower pass through rates than producers operating under complete information. Estimates from a panel data set of cars prices support the predictions of the model.