The Wealth of Nations by Part 1 Chapter 10 Page 108

circulation of labour and stock both from employment to employment, and from place to place, occasions in some cases a very incovenient inequality in the whole of the advantages and disadvantages of their different employments.

The Statute of Apprenticeship obstructs the free circulation of labour from one employment to another, even in the same place. The exclusive privileges of corporations obstruct it from one place to another, even in the same employment.

It frequently happens that while high wages are given to the workmen in one manufacture, those in another are obliged to content themselves with bare subsistence.

The one is in an advancing state, and has, therefore, a continual demand for new bands: the other is in a declining state, and the