Class action lawsuit filed in US claims the houses have colluded with the online giant to keep prices artificially high

Amazon.com and the “Big Five” publishers – Penguin Random House, Hachette, HarperCollins, Macmillan and Simon & Schuster – have been accused of colluding to fix ebook prices, in a class action filed by the law firm that successfully sued Apple and the Big Five on the same charge 10 years ago.

The lawsuit, filed in district court in New York on Thursday by Seattle firm Hagens Berman, on behalf of consumers in several US states, names the retail giant as the sole defendant but labels the publishers “co-conspirators”. It alleges Amazon and the publishers use a clause known as “Most Favored Nations” (MFN) to keep ebook prices artificially high, by agreeing to price restraints that force consumers to pay more for ebooks purchased on retail platforms that are not Amazon.com.