In this article, a unique data set for Danish manufacturing firms has been used to analyse the interplay between export, R&D investments and productivity. In addition to traditional tests, a nonparametric test for differences in stochastic distributions gives evidence that the productivity...

The underlying model combines the proximity-concentration trade-off framework with the real option approach. In contrast to the latest trade models, uncertainty is introduced as a continuous phenomenon. Furthermore, the model contains the innovation of comparing two option values simultaneously....

Do rms maintain their chosen market serving mode over time if they are confronted with dynamic processes such as uncertain productivity? What are the determinants for switching between market serving modes over time? Within a partial equilib- rium model which combines the proximity-concentration...