Vogel, Alexander; Wagner, Joachim - 2012
, therefore, seems to be useful to guide empirical work on the relation between exports, R&D and productivity for services firms … 2011) in a model that explains the decision of heterogeneous firms to export and to engage in R&D. Using a non …-parametric test for first order stochastic dominance it is shown that, in line with this hypothesis, the productivity distribution of …