In the EU, most large firms use e-business applications, such as enterprise resource planning and online procurement. Based on e-business watch data for EU-4 (Germany, France, Italy and the United Kingdom) we find that the actual use of enterprise resource planning and online procurement is...

We analyze the technical efficiency of German and Swiss urban public transport companies by means of SFA. In transport networks we might face different network structures or complexities, not observed, but influencing the production process. The unobserved factors are typically modeled as...