Re: @ Dan 55
It works elsewhere, but you are talking about taking an interconnected market without tariffs and applying tariffs to it. Products made in the UK from raw materials and parts from the EU or raw materials or parts from the UK used in products made in the EU suddenly get more expensive. What's going to happen is that products are going to be made in the EU with raw materials or parts from the EU.
Secondly if there's a disorderly exit there will be no procedures in place to export from the EU to the UK and the other way round and business could be breaking the law if they import or export to/from the UK.
Just think about it for a while (well the time to do that was before the referendum, but anyway).
I could see the UK moving to the EEA as a positive thing if it's done right, but I don't believe Brexit as the Tory party currently envision it for one minute will turn out to be good for the UK.