[kuschku]

If all big companies in a city go down, the city will suffer anyway – investing in the large companies in your city can’t make things worse.

The German government has done it for several decades, with great success – you should take a look at their model.

[whatok]

My understanding is that Wolfsburg was built in order to house Volkswagen workers. There is a massive difference in planning a city around a specific need versus a well-established city investing in companies. While I still do not agree with governments investing in companies, I will say that it makes more sense if you are planning an entire city around it.

In all other cases, cities investing in companies are either going to take on a VC role which I'd very much argue that they are not capable of performing well (and introduces so much room for corruption) or will be investing in mature companies and likely without the balance sheet to make a dent as far as voting power goes. I don't see how either leads to anything productive.