DIE research: Behavioural insights help increase household waste separation

Trelew • 27. March 2020

DIE research: Behavioural insights help increase household waste separation

The German Development Institute (DIE) applied insights from behavioural sciences to design letters providing information on recycling and waste separation in the city of Trelew, Argentina.

The German Development Institute (DIE), together with the University of Heidelberg and the World Bank’s eMBeD unit, applied insights from behavioural sciences to design letters providing information on recycling and waste separation in the city of Trelew, Argentina. These were delivered to 4,800 households and small businesses and tested in a randomized controlled trial. Two weeks after the letter distribution, the rate of households which separate waste had doubled to over 30%. A measurement of impact half a year later showed that the intervention was still effective. On this basis, the municipality decided to upscale the intervention to 20,000 households.

Read more here.

Photo: DIE