This paper develops a theory of oligopoly and markups in general equilibrium. Firms compete in a network of product … corporations in the USA, using publicly-available data. Using the model, I compute firm-level markups and decompose them into: 1) a …

markups over time. With minimal assumptions, we can disentangle aggregate markup and trade cost changes from observed changes … that across all country pairs, on average, bilateral aggregate markups have increased by 2.8% per year. As bilateral trade … changes. Markups have increased less in high-income countries than in other countries. …

Drinks. We estimate company (product) mark-ups using a 'simple? Nested Logit model, Berry (1994) and a more 'sophisticated …

An increasing body of empirical evidence is documenting trends toward rising concentration, profits, and markups in …

document that while firms mainly grow by selling to more customers, their markups are only associated with their average sales … customer acquisition and variable markups. Relative to a model without customer acquisition, our model generates higher …