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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The project’s goal was to increase voter turnout among potential voters: registered voters who participated in one or fewer primary elections since 2000. Voting is a high-salience, socially important behavior that is essential to a functioning democratic society. While campaigns and organizations spend millions of dollars to increase voter turnout, recent research suggests that simple interventions like facilitating plan-making can help people follow through on their intentions.
BI Project
Comparing the impact of positive, negative, and graded sustainability labels on purchase decisions
An online experiment with EU consumers was run to assess the relative effectiveness of three sustainability labelling approaches: (1) positive labels - only identifying products with the best sustainability performance, (2) negative labels - only identifying products with the worst sustainability performance, and (3) graded labels - conveying the relative sustainability of all products. Results suggest that graded labels are the most effective to steer consumer toward more sustainable purchase…
As rewards increasingly become an instrument used by policymakers, it is important to find a reward mechanism that does not crowd out intrinsic motivation, is long lasting, and has positive spillover effects on third parties. A policy innovation introduced by the Municipality of Santa Fe (Argentina) allowed us to evaluate different mechanisms for rewarding tax compliance – participation in a lottery (financial motive), public recognition (moral channel), and provision of a visible and durable…
Overall, this research investigated how to enhance the effectiveness of multi-stakeholder collaboration in tackling climate change. By leveraging two socio-psychological theories – Self-Affirmation Theory (SAT) and Moral Foundations Theory (MFT),this study equipped facilitators with strategies to reduce identity threats, foster constructive dialogs, and ultimately contribute to the development of more effective solutions in the environmental domain.
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…
Encouraging a more circular economy to lessen the impacts of climate change will require behavioural changes from Canadians. In partnership with Environment and Climate Change Canada (ECCC), we have launched a program of research to help meet some of Canada’s recycling targets—90% collection rate for plastic beverage containers, and these containers to have 50% recycled plastic content by 2030. This research will use insights and approaches from behavioural science to understand and increase…
Using sustainable transportation alternatives can often be hindered by car dependence (Haustein, 2021). Within the context of Santa Monica, for example, approximately 75% of Santa Monica residents choose single occupancy vehicle (SOV) commutes to work, and over 50% of households own more than one vehicle (Data USA, n.d.). More generally, vehicle transportation accounts for 62% of greenhouse gas emissions in the city, making it the largest emissions contributor (Johnstone, 2021).
However,…
It’s the end of April in Poland. While everyone
is happy the harsh winter weather is finally getting
milder, the Polish Tax Authority is worried because
62% of the country failed to pay their taxes on time.
Over the past decade, the use of behavioral principles
by tax administrations in different countries has been
gaining ground. Given the country’s tax compliance
rate, Polish authorities and the World Bank tested the
use of behaviorally informed letters to late taxpayers
in order to…
Building on BETA’s work with the Australian Financial Security Authority (AFSA) on applying behaviour science to the Personal Property Securities Register, BETA and AFSA are evaluating whether select recommendations make the registration process easier and if they lead to more accurate registrations.
Challenge
Tax delinquencies are a major problem for most tax administrations in the world. In Colombia, the National Accountant Office estimated the total outstanding debt to the National Tax Agency at $2.5 billion, which represents about 20 percent of estimated total tax evasion in 2014. Finding ways to reduce tax delinquencies is critical for both fiscal and equity considerations. A previous study compared messages about due liabilities delivered through three channels (letter, email, or…