Catalonia independence for business lights is best economic option all round

The Catalan four point to the building of a high-speed train line to Galicia rather than a freight rail link from Valencia to rest of Europe as example of Madrid's poor judgment. Photograph: Sport Photography/Alamy

Jon Henley: Madrid's policies have stymied export-orientated region and separation will benefit Spain and EU in the end, according to four Catalan businessmen