The study in this paper examines the causality relationship between exporting and firm productivity in an emerging market economy on the path of trade liberalization and market-oriented transition reforms. To achieve this purpose, we focused on testing whether only the most productive firms can overcome a productivity threshold to enter export markets (self-selection) or whether firms that enter export markets observe a subsequent productivity improvement (learning by exporting) using a panel data of firm-level data of manufacturing firms in Vietnam during the period 2007-2013. |