The task is to order four sentences into a coherent paragraph, with the correct sequence being 4, 1, 2, 3. The sequence is explained as follows:
4. The 'Chicago school' introduced an antitrust law named after it, which established the 'consumer welfare standard' and the principle that antitrust law should prioritize consumer interests and competition over individual competitors.
1. This school of thought promoted a conservative approach to antitrust enforcement, emphasizing faith in efficient markets and skepticism towards judicial intervention in correcting anticompetitive practices.
2. Despite significant market share gains by many industries, particularly technology companies that became titans, and their advancement of the 'public interest', no official concern was raised.
3. The emergence of new anticompetitive risks from tech giants like Google, Facebook, and Amazon necessitates novel legal solutions, likely due to a scarcity of monopoly enforcement actions and merger challenges in the USA.