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
- Pre-registered project
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Previous research by the Program of Applied Research on Climate Action and the Environment (PARCA) team has found that Canadians generally display poor understanding of the relative impacts of different pro-climate actions and have gaps in their understanding of climate change. Following up on these findings, a randomized controlled survey-experiment was conducted in December 2023 to test the impact of several behaviourally-informed interventions on climate literacy outcomes. Results suggested…
This study focused on switching in payment accounts and mortgages, exploring the reasons why consumers do not switch and possible behavioural remedies.
The study aims to identify barriers and trade-offs faced by consumers when deciding whether to engage in the circular economy. In particular, it explores decisions whether to buy a more or a less durable good, and whether to have a good repaired or to discard it and buy a replacement. It establishes the relative importance of economic, social and psychological factors that govern how consumers engage in the circular economy. Finally, it proposes policy tools to enable and encourage consumers to…
Telephone surveys were prefaced by a brief message reminding businesses that they had previously committed to participate.
The NYC Behavioral Design Team provided an additional reminder to Supplemental Nutrition Assistance Program (SNAP) clients that they would lose their benefits if they did not complete the SNAP recertification process. Highlighting the consequences and including attention-grabbing icons made this NYC BDT supplemental SNAP recertification notice more salient and actionable for clients.
Claims associated with adhesion contracts continue to represent a relevant challenge for financial consumer protection, particularly in highly mass-market products such as savings accounts and personal loans. The available evidence suggests that these complaints are not driven solely by regulatory transparency issues, but rather by persistent gaps in comprehension and attention at the time of contracting.
In this context, the Superintendency of Banks of the Dominican Republic (SBDR), through the…
Why this experiment was conducted: scepticism about second-hand clothes
The clothing industry is a major polluter, and the second-hand market is an important alternative to new clothes. While more and more Dutch consumers are turning to pre-owned clothing, a large group remains sceptical. According to a target group study conducted in 2020, they wonder whether they will be able to find a suitable second-hand item, and whether it is hygienic. The best way to overcome this scepticism is to create…
BI Project
Nudging to reduce littering in waste disposal areas – A field experiment in Austria’s community…
Soiled waste disposal areas in municipal public housing buildings are not only a major nuisance for residents, but also cause high cleaning costs. The aim of the present study was to develop behavioral measures to promote cleanliness and to test them in a field experiment with about 400 waste disposal areas. The present paper compares two System-1 (large posters displaying watching eyes and a natural landscape) and two System-2 (financial information, information on normative behavior and…
BI Project
Social Multipliers at Work: Improving Children’s Outcomes Through Aspirations and Role Models
Every year, governments spend large amounts
of resources on development programs that aim
to change poor households’ behaviors and attitudes
toward investment in the education, health, and
nutrition of their children as a way to end the cycle
of poverty. One key mechanism that can achieve this
is working to raise aspirations. But how do you do
that in practice?
In this project, together with Karen Macours of the
Paris School of Economics and the Ministry of Family
in Nicaragua, we find that…
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…