Why do judges disagree and publish their disagreements when cases get decided? After all, the Cabinet does not do so (openly at least), and our FTSE-100 companies do not generally do so, when their executives propose a merger or launch a new product. Surely, judicial dissent is a recipe for diminishing the authority of the majority answer, and an invitation to self-indulgence on the part of the minority to re-fight lost and irrelevant battles.
Lord Kerr has given a very persuasive answer to both concerns in the Birkenhead lecture on 8 October 2012. But it is worth thinking about the alternative way of doing things, before making up your mind on whether the current way is the best way.