Comment by ncruces

In the EU, yes, Ireland.

Their inward FDI stock to GDP ratio is around 250%, which is about 4× the EU average; and Ireland does this with a decently sized economy.

And then there's Luxembourg (1400%) and Malta (2000%) which arguably do much “worse” but are comparatively tiny.

I didn't do the math for every EU country. Those were just some of the few that came to mind. For instance, Cyprus has similar values to Ireland, but the Irish economy is 15× bigger.

When there's a lot of foreign money going through your economy and you can tax it to moderate amounts, you get to offer lower rates to your own citizens.

Which is great, but obviously doesn't scale if every country tries to do the same.