Re: 1800 jobs
It's not about taxing the revenue. The Gewerbesteuer goes directly to the community where a company is located. This is also the reason why many companies set up their business in some small village, because they get a discounted Gewerbesteuer rate. So the Gewerbesteuer rate in Munich will presumably be higher than what Microsoft paid in Oberschleißheim. It's somewhere in the "1 digit million range", so you may decide if that could make a difference to Munich's decision concerning LiMux (or Microsoft's move to Munich, anyway).