I had meant to take on something a bit less dry today, but here I am again on the scintillating subject of law firm mergers structured with Swiss vereins, or, if you strip away the jargon, unions that maintain separate profit pools. Thank you, Norton Rose.

The first observation to make regarding the debate on the City firm’s tie-up with Canada’s Ogilvy Renault and South Africa’s Deneys Reitz is how polarised the arguments are on both sides. Indeed, the same points have been deployed with the rash of other deals that have fallen short of full financial integration.