Beyond that, who knows, though the rough rule for Ireland is the harder the Brexit, the worse the outcome. The rough guide is that every 1% cut in UK growth hits Ireland by 0.3-0.4%. Looking at the island of Ireland, the ESRI pointed out that the Irish Republic was a more important market for Northern Ireland than vice versa. Shoppers are starting to cross the border again into Northern Ireland, particularly for big ticket items. The simple rule of thumb is that for Ireland, the harder the Brexit, the bigger the risks.

Source: The Guardian October 16, 2016 17:00 UTC