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:
0
Legend: Projects status
- Pre-registered project
- Completed project
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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.
BI Project
Full price information for consumers: What effect does the way prices are displayed have on online…
The Netherlands Authority for Consumers & Markets (ACM) conducted an experiment to investigate the effect of incomplete prices when booking a holiday home. Websites that display incomplete prices cause greater uncertainty, make choosing more difficult, undermine trust and give the feeling of deception compared to websites displaying transparent prices.
Why this experiment was conducted: unclear picture of actual costs
In 2021, the ACM conducted a study into effective transparency. The aim was…
BI Project
Whāriki Haumaru: Encouraging voluntary participation at court for people with outstanding Warrants…
We seek to increase voluntary appearances for people with outstanding Warrants to Arrest (WTA) through reminder phone calls from Māori Wardens and Police. This Auckland-based project follows a proof-of-concept trial in the Eastern District, in which Māori Wardens made phone calls to people with outstanding WTAs and we compared voluntary appearance rates for those who were reached via phone to those who were not.
While this trial in the Eastern District showed indicative evidence that phone…
BI Project
Encouraging people to get fitter: how can you give overweight people concrete guidance on adopting a…
The 'Fit op jouw manier' (Fit your way) campaign aims to encourage overweight individuals to get after. The campaign successfully reaches the target audience, motivating them with tips that they then practice. For example, more people now regularly take the stairs instead of the life or escalator.
Why this experiment was conducted: combating overweight and obesity
The Prevention Agreement aims to reduce the proportion of overweight adults from 50% in 2018 to 38% by 2040. A healthy lifestyle…
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…
The Ontario Treasury Board Secretariat (TBS) is responsible for paying Ontario Public Service (OPS) employees on a bi-weekly basis. The Pay and Benefits Service Centre inboxes receive a large volume of documents. Pay and Benefits transactions are processed according to Pay Processing Deadlines and Pay and Benefits Service Priorities. Each month, OPS employees are required to confirm their attendance in the OPS Human Resources system (WIN System) for the previous month, and managers are…
To support federal response efforts, Impact Canada is leading the implementation of the World Health Organization (WHO) Behavioural Insights (BI) Tool on COVID-19 in the Canadian context. This work is being led in collaboration with the Public Opinion Research Team within the Privy Council Office’s (PCO) Communications and Consultation Secretariat, which supports the Prime Minister’s Office in coordinating government communications in accordance with key priorities.
Insights garnered will…
BI Project
Effective position of call-to-action: Is the response rate higher if the call-to-action appears the…
How can response rates to questionnaires be increased? In the first quarter of 2023, some of the participants in a CBS survey received a letter in which the call-to-action appeared as far as possible at the top of the letter. The other participants received standard letters. The analyses showed that the standard letters produced a significantly higher response rate than the letters in which the call-to-action was placed at the top.
Why this experiment was conducted: high response rate is…
BI Project
Behavioural prompts to increase early filing of tax returns: a population-level randomised…
In Indonesia, as in other countries, a large proportion of tax returns are filed at the last minute. In a population-wide randomised controlled trial (n = 11,157,069), we evaluated the impact of behavioural email prompts on the proportion of annual tax returns filed at least two weeks before the deadline; and overall filing rate. In two control conditions, taxpayers either received no email or an email used in prior years, emphasising regulatory information. The five treatments informed by…