evidence: Irish economy to be eurozone's fastest-growing through to 2024 Ireland is to be the fastest-growing economy in the eurozone out to 2024, PwC has forecast. The Irish economy is projected to show GDP growth of 3.5pc in 2018 and average growth of 2.8pc for the period 2020 to 2024, compared to eurozone average growth of 2.2pc and 1.6pc respectively for these periods.