The ESRI is predicting GDP growth of 1.8% next year for the Republic of Ireland's economy.
It has said fiscal contraction will continue for the next three to four years but it "will not be as severe" as the country has seen recently.
The body also said Ireland should see faster growth from 2012 onwards, and if savings rates fall, then growth will be even faster.
Professor Joe Durkan of the ESRI has said Ireland is "on course to meet its economic targets this year" and he expects revenue to be higher than already estimated because of a strong-performing export sector.
However, he said he supports the view of the Fiscal Advisory Council that Ireland should aim to do more when it comes to cuts, because there is always uncertainty around estimates.