I think they can just get it for (relatively) cheap there and that would be the main reason.
I think they can just get it for (relatively) cheap there and that would be the main reason.
But the statistic I assume you are referencing is a few years old, and Berlin has been the fastest growing state in Germany for quite a while now, a development that is still increasing. The numbers for 2019 aren't out yet, but I assume that at this point, Berlin is exactly average in per capita terms for Germany.
Why Berlin has been an outlier for capitols is quite obvious: It has only been Germanys capitol for a bit less than 30 years, and before that was divided.
If I had to speculate, Tesla is concerned about finding people willing to relocate, and Berlin is a rather attractive destination even for people not speaking German.
I think what you meant is that Berlin has a net inflow of tax money.
[0] https://qz.com/753244/berlin-is-the-only-capital-city-in-eur...
Likewise, cities have their place in a countries economy, even if it's not to directly produce goods and driving up the GDP per capita.
In even simpler words: Remove Berlin from Germany and the GDP of the rest of the country would also go down.
For example, US GDP is $21 trillion, US GO is $37 trillion.