Isnt it just the standard "we give you money if you build here" thing like all foundries get.
I dont get how it will ever pay itself back. New York for example payed 1.2B$ for what..3000 jobs? That will be gone in 10-15 years.
The same discussion as during the last decades. First there is the effect of the invest itself, which is not solely paid by the state. So some first parts of the financial support come back by increased business at the construction companies' employees. Later there are taxes for the ground being built on, personal taxes (the high paid employees there have some avg. 30% income tax). They live there -> 19% VAT for their shopping. Such a fab attracts many smaller companies with some multiple amount of additional workers. And it doesn't look like Dresden is as poor and indepted as Berlin, where industry is missing somehow (with some exceptions).
Edit:
Around 2007 there were 69 nanotech firms in Dresden according to a Bundestag report.
One book at Google Books even mentions DM 2.25B as estimated income by including any social security money flows. An employer in Germany adds 20% for social security to any salary, while the employee also pays 20%. Of course this only helps the people, not the state itself. But the state being a organization of the people this should be fine.
Instead compare that with costs the state would have without getting the industry there:
- less interest by other industries in this region (infrastructure, workforce)
- higher unemployment
- costs involved with long term unemployment (>1a): ~8000€/person
- lower revenues and more individual failures in the local tertiary sector