Gabrielczak, Piotr; Serwach, Tomasz - In: Theory Methodology Practice (TMP) 10 (2014), pp. 3-8
The aim of this article is to test whether there are differences in productivity between exporters and non-exporters among manufacturing firms from Lodz Voivodeship. Not only do we look for a correlation, but also we verify two main hypotheses about the causality of the postulated relation:...