collected said:Brexit itself won't mean much as far as earnings. The real fear is other strong economic EU members leaving and then countries like Greece, Spain, and Italy won't be able to sell bonds at low yields since the euro will be a weak currency plus no more bailouts. You can see this with German 10yr bunds turning negative and Greek 10yr bonds going up 11% today. I think that the whole issue is overblown. UK doesn't even use the Euro to begin with.
Think of it this way, UK is one of the biggest economies in the world and you had treaties between all these countries so people could freely work throughout the EU and commerce could go on across borders, etc. Now, the UK has isolated itself from these areas (once the "Brexit" goes into effect). So now UK needs to negotiate treaties with either the EU or with each individual sovereign nation to allow commerce (the EU isn't going to make it easy as making it easy ultimately creates more pressure on others to leave, further destablizing the area.
Basically, think about what would happen if CA decided it didn't want to be part of the US anymore. We wouldn't have free trade with any of the other states, if we had companies which had locations in other states, those states may not allow us to do business, without meeting various requirements set forth within those various states, etc. On the flipside, CA wouldn't have to pay federal taxes and could be focused on state companies (but you also wouldn't get the benefits you had negotiated as being part of the "federal" government either.
Extremely complicated and a real destablizing move to the global economy. Nationalism at its finest (and I say that extremely sarcastically).