Two cases demonstrated economic tort's affinity to competition and labour law. In "Mogul Steamship Co. Ltd." the plaintiff argued he had been driven from the Chinese tea market by competitors at a 'shipping conference' that had acted together to underprice his company. But this cartel was ruled lawful and "nothing more a war of competition waged in the interest of their own trade." Nowadays, this would be considered a criminal cartel. In labour law the most notable case is "Taff Vale Railway Co v Amalgamated Society of Railway Servants". The House of Lords thought that unions should be liable in tort for helping workers to go on strike for better pay and conditions, but it riled workers so much that it led to the creation of the British Labour Party and the Trade Disputes Act 1906. Further torts used against unions include conspiracy, interference with a commercial contract or intimidation.