The Licensed Vintners Association has claimed the workplace smoking ban has led directly to the loss of 2,000 jobs in Dublin.
The association, which represents publicans in Dublin, said pub sales were down by 16% since the ban was introduced on March 29.
It said these figures were based on a study conducted by the market research firm Behaviour and Attitudes and paid for by the LVA.
Donall O’Keefe, the chief executive of the LVA, said he did not accept suggestions that other factors, such as pricing, could have led to the drop in business.