 According to Marx's own concept, absolute rent cannot exist when the organic composition of capital in agriculture becomes higher than the social average.Marx envisaged that labour productivity would be "higher" in manufacturing than in agriculture, for the longer term, reflecting the fact that the organic composition of capital (the ratio C/V) was higher in manufacturing than in agriculture.This implied, that in agriculture the "value" of output produced was persistently higher than the production price of that output.