Official Dutch report, 2003. https://www.cpb.nl/sites/default/files/publicaties/download/immigration-and-dutch-economy.pdf …pic.twitter.com/68c1zQ0S9p
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Here's one, but it's not so good. Wildly optimistic conclusion for the 2nd generations, not sure what the error/trick is exactly. Hard to read German. :P It's obvious from the life-time plot they are net negative over life (German natives ~0). https://www.bertelsmann-stiftung.de/fileadmin/files/BSt/Publikationen/GrauePublikationen/Studie_IB_Der_Beitrag_von_Auslaendern_und_kuenftiger_Zuwanderung_zum_deutschen_Staatshaushalt_2014.pdf …pic.twitter.com/mkBupdewLm
Even though Germany is the founding father of modern bureaucracy, the gov don't want to count migrants (& everything surrounding them) as they would bluntly acknowledge the utterly disaster of foreign migration beginning from the 70s. Real studies are classified as state secrets!
Example beside deviant behavior: cost estimation of unskilled migration, starting in the 70s range between 1,5 to 3 trillion € of today 20 Mio migrants Consequently, Denmark has a state pension of ~ 80% of the former income, Germany has 40-45%
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