Henry George,
Progress and Poverty (George)…
(1879)
“ Wages as a quantity and as a proportion Let us suppose land of diminishing qualities. The best would naturally be settled first, and as population increased production would take in the next lower quality, and so on. But as the increase of population, by permitting greater economies, adds to the effectiveness of labour, the cause which brought each quality of land successively into cultivation would at the same time increase the amount of wealth that the same quantity of labour could produce from that land. ”
