The English doctrine of restraint of trade was the catalyst for much of what is now called "competition laws" (or sometimes "antitrust"). These laws are a way of restraining those who would restrain "free competition" in the market economy, through monopolising production, setting up cartels, imposing unfair trading conditions, prices and so on. The English approach has traditionally been very flexible and liberal in its scope, but draconian when it did deem certain behaviour to be in restraint of trade. Many of these laws around the end of the nineteenth century were focused on the emasculation of trade unionism, until the reforming government of 1906 and the Trade Disputes Act 1906. Aside from the common law, legislation was introduced shortly after the second world war to foot policy on a statutory basis, the Monopolies and Restrictive Practices Act 1948, followed later by the Restrictive Trade Practices Act 1956 and the Monopolies and Mergers Act 1965.