The Australian Competition and Consumer Commission has urged local retailers with concerns about price-fixing in the electronic book publishing market to voice their concerns, as it considers its options following a US Justice Department lawsuit against Apple and five of the world’s largest book publishers, reports the “Financial Review” (http://macte.ch/m83Vk).

The ACCC said it was unable to comment on the status of any ongoing investigations. However, it was aware of the latest developments in the US concerning e-book publishing and pricing, according to the “Financial Times.”

Yesterday the United States Department of Justice filed an antitrust lawsuit against Apple, Hachette SA, HarperCollins, Macmillan, Penguin and Simon & Schuster in New York district court, claiming collusion over eBook pricing, as noted by “Bloomberg” (http://macte.ch/SXKob).

Apple and Macmillan, which have refused to engage in settlement talks with the Justice Department, deny they colluded to raise prices for digital books, the article adds, quoting unnamed “people familiar with the matter.” The companies will reportedly argue that pricing agreements between Apple and publishers enhanced competition in the e-book industry, which was dominated by Amazon.

The brouhaha centers on Apple’s move to change the way that publishers charged for e-books as it prepared to introduce its first iPad in 2010. Traditionally, publishers sold books to retailers for roughly half of the recommended cover price. Under that “wholesale model,” booksellers were then free to offer those books to customers for less than the cover price if they wished.

pple suggested moving to an “agency model,” under which the publishers would set the price of the book and Apple would take a 30% cut. However, Apple also insisted that publishers couldn’t let rival retailers sell the same book at a lower price.