“Whatever you budgeted, double it. It’s like building a house from scratch; you start off thinking it’s going to take you six months and cost half a million, and then you find it takes you twelve months and costs a million.”

This was the analogy provided by Matthew Hudson, chief executive officer of asset management consultancy MJ Hudson, on his company’s setting up an office in Luxembourg so that it could continue to access the EU fund management passport, and distribute funds across the EU, post-Brexit.