Here you will find articles I have written out of curiosity, for publication, as lectures to students or as an occasional submission to regulators. My main interests are the relations between European companies and the internet and the lessons to be drawn from the development, or otherwise, of competition in European telecoms over the past 25 years. I have recently written a couple of short papers ('Ex ante digital regulation' and 'Implementing data sharing regulation') about some of the practical aspects of regulating digital platforms.