While the role of exports in promoting growth in general, and productivity in particular, has been investigated … at the firm level been used to look at the extent and causes of productivity differentials between exporters and their …, while exporting does not necessarily improve productivity. …

face a fall in output, mark-ups and profits, and average industry productivity increases due to a selection effect. These …

firms always have a higher market share, there is no monotonic relationship between firms? productivity level and their … effect”. Therefore, the incentive to add more products weakens as productivity rises. This leads to Lemma 3 in Feenstra and …

face a fall in output, mark-ups and profits, and the average productivity of survivors increases. These pro …