Do you have any sources for the claim that a large part of growth is off-shoring?
Because that seems extremely implausible, and actually very insulting to the incredible success of Eastern Europe, before and after joining the EU, in closing the gap to Western Europe over the last 3 decades.
https://ourworldindata.org/grapher/gdp-per-capita-worldbank?...
The reason for the growth over different time frames can differ. Anecdotal, but most of the IT people I know from Poland worked for, as they call it, "big corpo" and generally it's offshoring either directly with companies such as DXC/Luxoft or n-ix, or through local offices (Akamai for example). If you look at the average salary in Poland (in general), and the average tech salary + the number of tech workers there, it's easy to say a large part of the GDP is tech.
Whether or not it's offshoring is a little less obvious, but I can't think of more than 2 or 3 successful Polish tech companies.
I’m so confused. At least in tech all the big companies I work with are hiring in Poland because it is about the same as India after losses around fake hiring and the quality averages better.
It is absolutely a huge offshoring target at least for the US.