... (6) Adam Smith, The Wealth of Nations. a. Text. Public domain, excerpted by A. C. Kibel ADAM SMITH: THE WEALTH OF NATIONS BOOK ONE OF THE CAUSES OF IMPROVEMENT IN ... revenue and stock is the increase of national wealth. The demand for those who live by wages, therefore, naturally increases with the increase of national wealth, and cannot possibly increase ... to augment the value of a money rent, even though it should be stipulated to be paid, not in such a quantity of coined money of such a denomination (in so many pounds sterling, for example), but...