The currency implications of Brexit

‘Unknown unknowns’ and other conundrums make it difficult to predict the currency’s post-Brexit future, writes Barry J Whyte

‘As we know, there are known knowns; there are things we know we know. We also know there are known unknowns; that is to say we know there are some things we do not know. But there are also unknown unknowns – the ones we don’t know we don’t know.”

It’s easy to forget that Donald Rumsfeld was pilloried for saying the above words in 2002, during a briefing on alleged weapons of ...