Despite their widespread use, NTBs’ effect on international trade is still quite understudied because of the complexities and variations of such policy instruments and the fact that NTMs often have diverse effects on international trade that cannot be easily generalised. However, there is a need to sum up findings by various international economic organisations and prominent scholars related to the impact of various restrictive measures on trade. This paper aims at summarising economic findings regarding qualitative and quantitative evaluation of non-tariff barriers in trade literature, as well as the most recent exposure of trade barriers in the form of embargo as a result of a conflict over Ukraine in 2014, where import bans for a wide range of goods was introduced by Russia.