The growth of shadow economies is attributed to two factors, according to a report by Schneider: ".the increase of tax and social security contribution burdens is one of the main causes for the increase of the shadow economy.
Rast sivih ekonomija pripisuje se dvoma faktorima, navodi se u Snajderovom izveštaju: «...teret porasta poreza i uloga za socijalno osiguranje jeste jedan od glavnih razloga za porast sive ekonomije.