16 January 2018 Dr Peter Holmes Reader in Economics at the University of Sussex and Fellow of the UKTPO. Nick Jacob is a PhD Candidate in Economics at the University of Sussex. The need for UK firms to comply with detailed Rules of Origin in a possible post-Brexit Free Trade Agreement with the EU has been widely reported. But the different procedures which firms could use to prove their compliance — and the costs to firms in time and money — have been mostly overlooked. […]