We test whether social comparison nudges can promote water-saving behaviour among farmers as a complement to traditional CAP measures. We conducted a randomised controlled trial among 200 farmers equipped with irrigation smart meters in South-West France. Treated farmers received weekly information on individual and group water consumption over four months. Our results rule out medium to large effect-sizes of the nudge. Moreover, they suggest that the nudge was effective at reducing the consumption of those who irrigate the most, although it appears to have reduced the proportion of those who do not consume water at all.
nudges; behavioural economics; irrigation water use; public policy;
Sylvain Chabé-Ferret, Philippe Le Coent, Arnaud Reynaud, Julie Subervie et Daniel Lepercq, « Can we nudge farmers into saving water? Evidence from a randomised experiment », European Review of Agricultural Economics, vol. 46, n° 3, juillet 2019, p. 393–416.
European Review of Agricultural Economics, vol. 46, n° 3, juillet 2019, p. 393–416