The Wealth of Nations by Part 1 Chapter 10 Page 129

When the regulation, therefore, is in favour of the workmen, it is always just and equitable; but it is sometimes otherwise when in favour of the masters. Thus the law which obliges the masters in several different trades to pay their workmen in money and not in goods is quite just and equitable. It imposes no real hardship upon the masters. It only obliges them to pay that value in money, which they pretended to pay, but did not always really pay, in goods. This law is in favour of the workmen: but the 8th of George III is in favour of the masters. When masters combine together in order to reduce the wages of their workmen, they commonly enter into a private bond or agreement not to give more than a certain wage under a certain penalty.

Were the workmen to enter into a contrary combination of the same kind, not to accept