020.
I've looked back through the archives a great while, and I was surprised to learn that there have been very few attempts to capitalize on the inter-world aspect of this community for business ventures. It seems as though the large part of any organized attempts were made by the ShinRa corporation, and a monopoly over a sector is harmful to other, smaller ventures... hmm. It would require a substantial amount of red tape, not to mention the difficulty of inter-world coordination; it may be that an entirely new division of organization would need to be created, but... it's something to keep in mind.