The wealth of society is its total productive labour relative to its consumption.
This wealth is regulated by:
- The quality of the workers, or the skill, dexterity, and judgement of the workers
- The quantity of the productive workers, or the proportion of the number of employed in useful work to those who are not so employed.
Book 1 explains the causes of this improved productivity and how its products are naturally distributed in society.
The number of productive workers is then proportional to:
- the quantity of capital stock employed in setting them to work
- how this capital stock is employed
Book 2 explains:
- the nature of capital stock
- how capital stock is accumulated
- the quantity of labour which the capital stock mobilizes
Book 3 explains the plans followed by different nations in the direction of their labour.
Books 1 to 4 explain the nature and components of the revenue of society that supplies its annual consumption.
Book 5 explains the revenue of government.