economic postulate in a sentence

1. His work in the area of economics postulated that money was the economic equivalent of the lowest form of social entropy as described in his work  Teachings on Energy ( " in German ", " Lehre von der Energie ", 1887 ).
2. The acceleration was planned to be based on technical and scientific progress, revamping of heavy industry ( in accordance with the Marxian economics postulate about the primacy in development of heavy industry over light industry ), taking the " human factor " into account, and increasing the labour discipline and responsibility of apparatchiks.
3. It's difficult to find economic postulate in a sentence.