I posted this link on another thread but thought it deserved its own topic as this is so important.
The Services Sector accounts for a staggering 78% of the UK's GDP. Since manufacturing has all but disappeared, this what the UK is best at offering the world and we really are rather good at it! At the core is the financial sector, which would be seriously under threat if Brexit happens.
Swiss banks have been trying, and failing, for years to get direct access to the single market. The EU have refused to include the entire Services Sector in its agreements with Switzerland and others. This has hugely benefited the UK, because it means that Swiss banks need major operations in the EU, and most have chosen London, bringing jobs and tax revenues.
If Brexit happens, then both foreign and UK banks would have to move large parts of their operations across the Channel, probably mainly to Paris but also to Frankfurt and Berlin. We'd be extremely naive to think that France and Germany would give the UK preferential treatment to protect the London financial centre! Brexit would be a disaster for the City and this would affect the entire UK economy, not just rich City types.
This article by Hugo Dixon (a Remainer, so not unbiased but very well informed) explains the Swiss situation really well: Swiss Option?
The Swiss government has itself acknowledged the drawback: “The existing barriers to market access place Switzerland at an economic disadvantage… Swiss financial intermediaries can only expand their EU business by way of subsidiaries in the EU, which means that Switzerland loses out in terms of jobs, value creation and tax receipts.”
And
The idea that Switzerland doesn’t have to follow EU rules is also misleading. It doesn’t have to adopt the social legislation. But in general it does have to adopt the same or equivalent product regulations – and it gets no vote on what those rules are. There is also no dispute mechanism so, if it gets into a fight with the EU over whether its companies have been fairly treated, there’s nothing it can do. The Swiss government has commented that it is “generally necessary to adopt developments of relevant EU law” to keep regulation equivalent.
And:
Switzerland is also required to allow immigration from the EU. Economically, this benefits Switzerland just as it does Britain. But for those who want to stop EU immigration, the Swiss option isn’t a good one.
I strongly recommend everyone to read the entire article.