Dr Richard Collier is a qualified lawyer and chartered accountant, and a former partner at PwC. He has been very closely involved with the work of the OECD since the late 1990s and was especially active in the BEPS project. In 2019 he was appointed on secondment as a senior tax adviser to the OECD to manage the work on Pillar 1 of the OECD’s work on taxation of the digitalised economy. He has worked on a wide range of research projects for CBT, especially on tax treaties and transfer pricing, the implications of the BEPS project and more fundamental reform. In 2017 the Oxford University Press published his book, co-authored with Joe Andrus, Transfer Pricing and the Arm’s Length Principle After BEPS. His most recent book, Banking on Failure, has just been published, again by Oxford University Press. Richard also teaches on the MSc in Taxation at the Oxford Law Faculty.