Fryges, Helmut; Wagner, Joachim - Institute for the Study of Labor (IZA) - 2007
reason for this result is that most previous studies are restricted to analysing the relationship between a firm’s export … status and the growth of its labour productivity, using the firms’ export status as a binary treatment variable and comparing … score (GPS) methodology that allows for continuous treatment, that is, different levels of the firms’ export activities …