The economy is pretty good on Shiva. If you sell the right things then you can make good gil. It does of course have it's ups and downs depending on the time of day and the items in particular, but since I've started playing a few months ago, I've probably made about 4-5mil, and spent about 2-3mil on stuff from the market board. I have honestly never been at a point, (after getting my retainers obviously), where I was ever hurting for cash for anything, and pretty much all I've sold on the MB are low level crafts I used for leveling, (1-20 mostly), dungeon loot on rare occasion, and primarily fish I've caught when leveling my fisher up. And most of those fish I have caught, I tend to just desynthesis anyhow because I need the water shards more than I do the raw gil......