Førstnævnte defineres i overensstemmelse med de gældende internationale definitioner, som værende varigt tilknyttet landets erhvervsliv, fordi de har deres normale bopæl her, om end de i kortere perioder rejser udenlands (mindre end et år).
The former are defined, in accordance with current international definitions, as being permanently linked to the economy of the country concerned by virtue of the fact that they have their habitual residence in that country, even if they go abroad for a short period (less than one year).