an elementary economic decicion-making centre characterised by uniformity of behaviour and decision-making autonomy in the exercise of its principal function. A resident unit is regarded as constituting an institutional unit if it has decision-making autonomy in respect of its principal function and either keeps a complete set of accounts or it would be possible and meaningful, from both an economic and legal viewpoint, to compile a complete set of accounts if they were required., majandusüksus, kellel on täielik raamatupidamine ning kes on iseseisev juriidiline isik, st võib oma funktsioonide täitmiseks võtta iseseisvalt vastu otsuseid, kasutamaks oma materiaalseid ja finantsressursse