Wagner, Joachim - In: The world economy : the leading journal on … 30 (2007) 1, pp. 60-82
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 …, exporters are found to be more productive than non-exporters, and the more productive firms self-select into export markets …