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 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,…
The aim of the project was to reduce common errors that self-employed taxpayers make when
they complete certain sections of tax return form 1770, such as identifying their business category and declaring assets and liabilities. Taxpayers can make both intentional and unintentional errors. Our objective was to reduce unintentional errors associated with lack of knowledge.
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…
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,…
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…
BI Project
Reporting a change in income to Benefits Unit: How to ensure that more people comply with their…
'Returning to employment? Don't forget about your benefits!' When individuals receiving benefits return to employment having been registered as unemployed, it is important that they report the change in their income to the Benefits Unit on time, to avoid repayment demands. Why do individuals not comply with this notification requirement? And what interventions could improve compliance? A revised letter from the UWV Employee Insurance Agency and an additional page on the Benefits Unit website…
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…
Tax amnesties, a limited-time opportunity for a specified group of taxpayers to pay a defined amount of tax liabilities, are broadly used across countries because they generate short-term revenue gains. However, evidence suggest that tax amnesties fail to have long-term effects, and in some cases, they generate negative effects on compliance. With the goal of evaluating the impact of tax amnesties, this experiment relies on the behavioral principle of limited attention and redesigns the…
BI Project
Promising circular business models: what options for a sustainable purchase are acceptable to…
A circular business model promotes reuse of products and materials. A case in point is a model where consumers return their jeans to the manufacturer after use. Which circular business model characteristics are consumers willing to accept right now, and what do they refuse? Acceptance of these models seems to increase if companies offer effective or appealing option combinations, such as monthly payment schedules and discounted returns.
Why this experiment was conducted: to promote the circular…
BI Project
Give Your Car (and Wallet) a Break: Enabling more Sustainable Commutes in Pristina, Kosovo
Air pollution is a serious health and environmental problem in many cities, including Pristina, Kosovo, where poor air quality is a frequent issue. Private cars and taxis are a major mode of transportation in Pristina, contributing significantly to both pollution and congestion, which is most problematic at peak traffic hours when individuals commute to and from work. To tackle this issue, ideas42 partnered with the UNDP Kosovo to design a behavioral intervention with the unifying slogan, "Give…