[Zylithan]

It is. It just means that every province gives you 150% of the normal amount of gold. I think this was recommended because so many provinces on this map have mountains or forest, which tend to be low income. We'll see how this plays as time goes on. I've never actually completed a game SP or MP, so I don't really know what happens goldwise as you start to expand to more provinces and more castles. There's always SOMETHING to buy...