An Inquiry into the Nature and Causes of the Wealth of Nations

by Adam Smith

Such are the inequalities in the whole of the advantages and disadvantages of the different employments of labour and stock, which the defect of any of the three requisites above mentioned must occasion, even where there is the most perfect liberty. But the policy of Europe, by not leaving things at perfect liberty, occasions other inequalities of much greater importance. It does this chiefly in the three following ways. First, by restraining the competition in some employments to a smaller number than would otherwise be disposed to enter into them; secondly, by increasing it in others beyond what it naturally would be; and, thirdly, by obstructing the free circulation of labour and stock, both from employment to employment, and from place to place.