Competition regulators world-wide are grappling with the rise of dominant digital platforms like Facebook and Google, and are debating whether current competition laws need to be reframed in response, the chair of Australia’s competition regulator, the ACCC, Rod Sims, has said.

Nearly 83% of the population of Australia above the age of 14 — 17.1 million people — uses the social media site Facebook during an average four weeks, the research agency Roy Morgan says, adding that this figure has grown by 4.2 million, or 32.4%, from 2015.

The US Government must hold Facebook chief executive Mark Zuckerberg accountable for all the problems that the social media site has visited upon its users, Chris Hughes, a co-founder of the company, says in an op-ed, in which he also called for the company to be broken up.