An associate professor of economics at the University of Limerick has said that more clarity is needed for people working in tourism and hospitality faced with doing business with tourists who may not have self-isolated after arriving here.
Stephen Kinsella told RTÉ's Morning Ireland there is a "real asymmetry" between how international travellers are being treated and how individual business owners are responding.
He said by making quarantine for incoming travellers "advisory" rather than "mandatory" it places "the moral hazard" at the door of those working in tourism and other businesses.
He said "a lot of this comes down to placing resonsibility at individual, personal or business level, which is probably incorrect at the moment".