In a recent paper Edward Lazear proposed the "Jack-of-all-trades" view of entrepreneurship. Based on a coherent model of the choice between self-employment and paid employment he shows that having a background in a large number of different roles increases the probability of becoming an...

This paper uses a large plant level panel data set from Germany and a matching approach to look for casual effects of starting to export on plant performance. We find positive effects on growth of employment, labor productivity, and wages.