“…The big picture that emerges from the results of the studies using data for firms from manufacturing industries is well in line with the predictions derived from the theoretical model by Helpman, Meltiz and Yeaple (2004) -firms that serve the home market only are the less productive group, followed by firms that export and by firms that engage in outward foreign direct investment (usually these firms are exporters, too). Bhattacharya, Patnaik and Shah (2010) argue that the productivity pecking order between exporters and firms with fdi differs between firms from manufacturing industries and firms from services industries. They set up a theoretical model in which less productive profit maximising services firms choose fdi and more productive firms choose export as the mode of serving foreign markets.…”