New research on corporation tax suggests that Ireland could become more attractive to foreign investment if the UK votes to leave the EU.
However, the research, carried out by the Economic and Social Research Institute, also finds that further cuts in the UK corporation tax rate would make Ireland less attractive for investment.
Analysing more than 18,000 foreign investments in the EU in the decade to 2013, the ESRI has found that Ireland's attractiveness to inward investment is highly sensitive to changes in the corporation tax rate.
This is particularly so in the case of investments from outside the EU, such as US firms, and investments in the services sector.
The research suggests that investors see little difference between Ireland and the UK as investment locations - suggesting that if the UK votes to leave the EU, this would make Ireland relatively more attractive to investors.
However, cuts in UK corporate tax rates make Ireland relatively less attractive - and Britain has legislated two such cuts over the next four years, suggesting a British vote to remain in the EU would make it easier for the UK to attract more inward investment projects.
In the meantime it says the Government can help Ireland’s attractiveness for investment through policies that keep costs competitive, and boost research and development spending.
The Central Bank, meanwhile, has said that a vote by the UK to leave the European Union would have both short-term and long-term impacts on Ireland, while a negative impact on Irish exports to the UK could be expected.
It said that it has been engaging with financial sector firms to assess their preparedness for the risks associated with Brexit.
Alastair Campbell, former director of communications for ex-prime minister Tony Blair, has said it is very clear to him that Irish business "seems genuinely concerned" that the prosperity of both Britain and Ireland are "fundamentally at risk" if Britain leaves the EU.
Speaking on Today with Séan O'Rourke, he said he formed this view following a recent visit to Dublin.
He added that Britain's economic interests "are better secured within the European Union."
A political scientist with a particular focus on Britain and Europe has said opinion polls show the Leave campaign is pushing ahead.
Prof Matthew Goodwin at the University of Kent said of ten opinion polls taken in the last fortnight, the Leave side is ahead in eight, by between one and ten percentage points.
Speaking on RTÉ's Drivetime, Prof Goodwin said there are various theories to explain this, with some suggesting that the Leave side's message on immigration has resonated with voters, and others saying that the Remain side has not been running as good a campaign as it could have done.
British-Irish Chamber launches Brexit toolkit
Meanwhile, the British Irish Chamber of Commerce has launched an online ‘Brexit Toolkit for Employers’ to highlight the key issues of the UK EU Membership Referendum debate.
The toolkit features frequently asked questions about a possible Brexit and the implications it could have on trade agreements, business stability, and job security.
Ireland will not be leaving EU - Kenny
Elsewhere, Taoiseach Enda Kenny has thanked various members of the Dáil for travelling to Britain and Northern Ireland to address the issue of Brexit.
During the Order of Business in the Dáil, Mr Kenny said evidence from exporting firms had shown that a Brexit would have a serious impact on competitiveness and export capacity.
Mr Kenny said while he would be disappointed if the UK chose to leave the EU, Ireland would not be leaving.
"We've linked our future to the Euro, the Eurozone and the European Union", he said.