Studies show that the additional cost burden due to such regulatory differences is equivalent to a tariff of more than 10%, and even 20% for some sectors, whereas classic tariffs are at around 4%.
Uuringute alusel põhjustavad sellised õigusnormide erinevused lisakulusid, mis vastavad üle 10 % (mõnes sektoris isegi üle 20 %) tollitariifile, samas kui tavalised tollitariifid on ligikaudu 4 %.