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…
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.
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Legend: Projects status
- Pre-registered project
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BI Project
Recommendations to improve the quality of the population’s diet through the National Food…
There is extensive evidence that shows that poor nutrition is associated with a set of non-communicable diseases, which today constitute the main cause of death. Currently in Argentina, excess weight affects all age groups, with a prevalence of 66.1% in the adult population, 13.6% in children under 5 years of age, and 41.1% in the 5 to 17 age group.
These figures are accompanied by inadequate eating habits, identifying wide food and nutritional gaps, due to deficit or excess, between current and…
emand within the Child Protection system has grown significantly over the last decade.
The education sector is a particularly important stakeholder. Teachers and other school staff interact with children regularly and are often the first to notice if a child is at risk or needs support.
This project sought to better understand the decision making process of professionals from the education sector, Child Protection Intake and Child FIRST lead agencies for identification of whether a child is…
In a pre-registered experiment, we tested whether expert endorsement increases the effectiveness of debunking messages about COVID-19 vaccines. We monitored a sample of 2,277 people in Italy through a longitudinal study along the salient phases of the vaccination campaign. Participants received a series of messages endorsed by either medical researchers (experimental group) or by generic others (control). In order to minimise demand effects, we collected participants’ responses always at ten…
The Program of Applied Research on Climate Action in Canada (PARCA Canada) combines behavioural science (BeSci) insights and methods with robust policy analysis to promote climate action. One of the main areas of focus involves the launch of a longitudinal survey that will, over time, collect data on research questions of interest to the promotion of climate action in Canada (e.g. transportation, home energy use, waste management, engagement with nature, preparedness for extreme weather,…
BI Project
Filing tax returns correctly and on time: Is there value in expressing thanks to citizens and…
Are people more likely to file their tax returns correctly if they receive a thank-you in advance or afterwards? Analyses show that thank-you messages have no effect on compliance behaviour.
Why this experiment was conducted: positive alternative sought
To encourage citizens' tax compliance (i.e., paying their taxes on time and correctly), it is occasional practice to emphasise the risk of checks and fines in case of non-compliance. One drawback of this deterrent method is that it can damage…
BI Project
Less waste placed next to underground containers: is there a reduction in the amount of waste left…
The Municipality of Dordrecht organised a competition titled The Cleanest Neighbourhood in Dordrecht. The aim was to get residents to place less rubbish next to underground waste containers. As a result of the experiment, the amount of waste left next to bins decreased and a new social norm was established.
Why this experiment was conducted: rubbish left next to waste containers
Bin liners and other bags containing residual and larger waste left next to underground containers rank amongst the…
The Program of Applied Research on Climate Action in Canada (PARCA Canada) combines behavioural science (BeSci) insights and methods with robust policy analysis to promote climate action. One of the main areas of focus involves the launch of a longitudinal survey that will, over time, collect data on research questions of interest to the promotion of climate action in Canada (e.g. transportation, home energy use, waste management, engagement with nature, preparedness for extreme weather,…
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…
Challenge
The City of Philadelphia in Pennsylvania offers a discount to low-income senior citizens living in the municipality on their water bills. Senior water and sewer customers can apply to receive 25 percent off their payments for water in an effort to reduce the financial burden on those elderly citizens with lesser means.
However, despite the fact that this would benefit the citizens in question, the City of Philadelphia noticed that many low-income seniors eligible for the discount were…