This paper investigates the relationship between consumer demand and firms'' mark-up for several products in the UK, using two independent datasets. It uses data on consumer expenditures and the retail price index to estimate Almost Ideal Demand Systems on micro-data and compute time-varying...

New exporters tend to exit markets more often. Despite significant sunk costs of exporting, the rate of survival in the first year of a product in a new market is very low. In this paper, we use detailed export and import transactions panel data from Colombia to examine whether changes in the...