At time of my thesis, i remember a paper i read about Ally-shoring, "Ally-shoring is when a nation on-shore production of essentials." The Only issue with Ally-shoring is if some essentials are unavailable in one's nation, the prices of the essential can get inflated.
To begin with, here's our new inequality transparency index. Bottom line: we have access to a few more data sources in Europe/N. America than in other parts of the world, but the truth is that no country is fully transparent, especial. regarding wealth inequality & financial data