The Irish Times reports on the groundbreaking work by J-PAL co-founders Abhijit Banerjee, Esther Duflo and Michael Kremer, which earned them the 2019 Nobel Prize in Economics for their "experimental approach to alleviating global poverty.” Their use of randomised control trials has helped show what works in global development, such as the ‘Teaching at the Right Level’ (TaRL) programme, which groups students by ability rather than age to improve learning outcomes.