Behavioural Insights Projects
Discover projects applying behavioural science to policy from around the world. Add your own projects, whether completed or still ongoing, to contribute knowledge on BI applications across different countries, policy areas, and topics of interest.

Number of BI projects:
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Legend: Projects status
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To reduce the speed of motor vehicles on the Yarze highway, Nudge Lebanon, in collaboration with the Traffic Management Centre (TMC), placed a salient image of overlooking eyes, coupled with a message informing drivers that their speed was being monitored on a Variable Message Sign (VMS). Vehicles in treatment time slots, with speeds above 100km/h reduced their speed by around 11.5% compared to similar vehicles in the control group. Moreover, compared to the control group, the treatment was more…
BI Project
Pre-contractual information and billing in the energy market – improved clarity and comparability
The study investigates minimum requirements and options for standardisation of energy offers and bills that ensure increased clarity and comparability, and puts forward better alternative “bill designs”. The study also examines the main factors discouraging energy consumers from switching, with a focus on the impact of exit fees in this decision. Finally, price comparison tools (PCTs) in the energy sector are examined and (independent) verification schemes for such tools are identified.
This project leverages an online survey experiment among federal employees involved in the process of translating information and evidence about a program into actionable policies and programs. The experiment’s primary aim is to test ways of presenting information to improve sensitivity to impact-relevant information about a program. The impact-relevant features tested are: the number of people impacted, the intermediate or final outcomes and the persistence of effects. In addition, the…
BI Project
Nudge vs Superbugs: a behavioural economics trial to reduce the overprescribing of antibiotics
BETA and the Department of Health ran a trial to test the impact of personalised letters from Australia's Chief Medical Officer to high-prescribing GPs prompting them to consider reducing antibiotic prescribing where appropriate and safe.
The Environment Act 1986 established the Ministry for the Environment (MfE), which is the primary adviser of the New Zealand Government on environmental matters. The purpose statement for the MfE is “A flourishing environment for every generation – He taiao tōnui mō ngā reanga katoa [te reo version, the indigenous language of the Māori people].
MfE is actively engaged in reducing waste across the country, as illustrated by the recent Aotearoa New Zealand Waste Strategy. To lead by…
BI Project
Applying behavioural science to decrease air contamination from woodheating in Ile de France
More than 480 000 people in Ile de France use an inefficient woodheating device releasing high quantities of particulate matters in the environment but do not always link air pollution and woodheating.
This project aimed to inform the inhabitants about this link and encourage them to renew their ancient devices and adopt good practices around woodheating.
281 households were equiped with particulate matter sensors and the DITP compared the evolution of contamination between groups, divided in…
BI Project
Higher COVID-19 vaccination rates: did mobile vaccination units result in an increase in the number…
In an effort to boost COVID-19 vaccination rates, mobile vaccination units were rolled out in late 2021. This strategy proved successful: the number of vaccinations administered was between 1.1 and 14.5 times higher in neighbourhoods on the days they were visited by mobile units. The units were more effective in rural areas than in urban settings. In addition, they proved to be more effective than average in neighbourhoods with a higher proportion of SGP voters and still effective, although to a…
BI Project
Text messaging to spur vaccination take-up: which type of communication is most effective?
In early 2022, various kinds of text messages were sent to over 100,000 residents of Brabant-Zuidoost who had not yet received a booster jab from the GGD. The results show that the most effective variant − in the 6 days after receiving the text message − led to a 3.2% increase in the number of vaccinations administered. This was the text message saying 'Jouw boosterprik ligt voor je klaar' (You can now book your booster vaccination) plus a randomly allocated date, time and location.
Why…
Testing Labelling Dimensions for Chemicals in Products