The last weeks there was problems and lots of discussions between the Catalan and Spanish governments. There was a referendum that the Catalan government accepts but the Spanish one doesn't and the result was a 'Yes' for independence. I do not want to discuss this, there are a lot of opinions about it.
Now it is still not clear if the Catalan government declared independence based on this referendum result, but before anything is clear many companies had already left Catalonia under this uncertainty.
Before any declaration, lots of companies decided to move their social HQ to another region of Spain, to avoid loses under this uncertainties and avoid problems in a hypothetical declaration of independence (Also to be under the European umbrella of security). I understand why the companies move their social HQ and not the work force and most of the offices (They keep this as always). I do not understand the effects in the economy in Catalonia.
If companies move they will pay autonomic taxes to another region of Spain, but some people argue they are not important losses for the Catalan economy
(see http://www.naciodigital.cat/noticia/140007/efecte/limitat/trasllat/caixabank/banc/sabadell http://www.publico.es/economia/fuga-sedes-empresas-catalunya-cuestion-imagen-impacto-fiscal.html I only found things in Spanish or Catalan).
Another important taxes are paid to the Spanish government so it will not change in different regions. They also argue that the workforce is still in Catalonia and therefore it is not a big impact. But even if all of this is true, many people say it is a big deal for Catalonia.
A trickle of companies fleeing the restive Spanish region of Catalonia threatened to turn into a flood as a second major bank and two more firms said they would move their head offices to other parts of the country.
So, what effects does this social HQ movement have for the Catalan economy? Is it only an image effect that can affect in the future, is it something more important, is it really not a big deal, is it exaggerated to make the independence movement look worse or not exaggerated to make the movement not so bad?
I want an answer about the actual situation and the future without an hypothetical independence of Catalonia. (Let's suppose the independence does never happen.)
As a plus: What effects have this if Catalonia is independence? (If it's too broad I can ask another question.)