In the 1870s the Earl of Granville, British Foreign Secretary remarked, in a letter to the British Minister in Washington, that "the most-favoured-nation clause has now become the most valuable part of our system of commercial treaties and exists between nearly all nations of the earth." khursid hyder, equality of treatment and Trade Discrimination in International Law 23 n.6 (1968).
Davey, Non-Discrimination in the World Trade Organization: The Rules and Exceptions 68 (2012) ("The most-favoured-nation clause promotes the idea of sovereign equality"); see also Oswaldo de Rivero B., New Economic Order and International Development Law 28 (1980) ("The concept of equality on which article I of GATT is based ...
the customs authority of the State "treats" certain imported goods unequally by imposing heavy duties on these goods and on similar goods (ceteris paribus) in violation of a most-favoured-nation clause, the discrimination does not concern the goods in question, but the individuals or the State who have rights with respect to the goods.
It utilized all kinds of trade controls to make the German economy self-sufficient and provide it with the implements for war." First Report on the Most-Favoured-Nation Clause,  2 Y.B.
(8) ILC, Draft Arts, above n 1, art 5; Similar illustrations were used by, Schill, above n 6, and by Endre Ustor, Special Rapporteur, 'First report on the most-favoured-nation clause', (1970) II Yearbook of the International Law Commission (1969) 158-181.
(28) PR Thulasidhass, 'Most-Favoured-Nation Treatment in International Investment Law; Ascertaining the Limits through Interpretative Principles' (2015) 7 Amsterdam Law Forum 3-24; Okezie Chukwumerije, 'Interpreting Most-Favoured-Nation Clauses in Investment Treaty Arbitrations' (2007) 8 Journal of World Investment and Trade 597-646.