The EU is still a major trading partner, and regulatory divergence would kill trade, not increase it.

Elsewhere, the only way fewer regulations would increase GDP would be if the UK was selling goods and services that benefited from lower standards.

It already does that, because tax evasion and money laundering are a significant part of GDP.

But there are very, very few areas in normal international trade where buyers want to see looser regs and lower standards.

As an argument, it's just incoherent.

Where would that be? The Stuart heir isn't interested in the job, and Divine Intervention probably isn't on the table. Reform Party? Oh, come on...

Speaking from finance view, the trade from Britain has been moving capital out for years. Not in. The stock market has shrunk,

If real deregulation comes at some point, maybe the curve changes. That remains unlikely, however, given to export anything the UK would have to meet their importers’ (read: America and Europe’s) standards.

(The benefits of deregulation are absolutely swamped by the benefits from trade. This inequality grows the smaller your economy is relative to your trading partners’.)