Behavioural Insights Projects

In a series of field experiments, six municipalities investigated whether a different approach in social assistance could get more people into work. The study focused on the effects of an exemption from the obligation to seek work, more intensive counselling or higher earnings disregards for additional income. A different approach can increase the number of people finding jobs. More research is needed. Why the experiments were conducted: increasing the effectiveness of the Participation…

Institution: Deventer, Groningen, Nijmegen, Utrecht, Tilburg and Wageningen

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…

Institution: Netherlands Authority for Consumers & Markets (ACM)

Five large cities in Noord-Brabant and the provincial authorities investigated how to improve cycling safety through behavioural interventions. They placed signs and markings along cycle routes in 's-Hertogenbosch, Breda, Eindhoven, Helmond and Tilburg. Half of the interventions had an effect; the number of dangerous situations decreased. Why this experiment was conducted: redesigning road layouts is not always possible Six locations in towns and cities in Noord-Brabant were identified as…

Institution: Noord-Brabant

Challenge Conditional cash transfers are funds given to households if they fulfill certain requirements, such as sending their children to school. These cash transfers can boost households’ investment in health and education; however, they are expensive, and it is often complicated to track and enforce compliance with the requirements. Removing the conditions may make cash transfer programs more cost effective by decreasing administrative costs, while still providing a nudge to increase school…

Institution: World Bank

Team: eMBeD, Mind Behaviour and Development team

This study tested a behavioral intervention aiming to help reduce the prevalence of anemia in children in El Salvador. It first describes a traditional micronutrient distribution program for rural households. The analysis shows that although implementation was relatively successful, and take-up high, adherence to the full treatment of micronutrients was much lower. To explain this gap, the analysis employs a design methodology based on the “caregiver journey.” This methodology is a…

Institution: Inter-American Development Bank (IDB)

A Randomized Controlled Trial (RCT) was conducted at seven of Amel’s community centers to improve the performance of students sitting for Cycle I exams. The trial consisted of a short activity that comprised of a ranking exercise whereby they have to rank a list of 10 values from most of least important to them, followed by a drawing exercise in which they have to visualize their number 1 value [9]. Both exercises were completed by students right before sitting for their exams.

Institution: Nudge Lebanon

Team: Nudge Lebanon

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…

Determining residents' current preferences for covid-19 vaccination and developing strategies based on the use of behavioural interventions.

Institution: Ministry of Health of the Slovak Republic

Team: Behavioral and Experimental Economics Team (BEET)

Voting is a public good in that it benefits society and is an important part of a functioning democracy. Yet, many people fail to cast their ballot on election day because the individual benefits from voting are limited. Generally, people contribute more to public goods when their behavior is made more observable to others. However, voting is inherently private: very few people observe whether you actually show up on election day. In addition, existing channels used to encourage people to vote,…

Institution: Harvard Kennedy School

Team: Behavioural Insights Group

The Ministry of Finance of the Republic of Latvia collaborated with the World Bank on a holistic review of the country's tax system, an input to the design of a new, improved tax strategy. The State Revenue Service (SRS), Latvia's tax authority, worked with the Mind, Behavior, and Development (eMBeD) Unit at the World Bank to pilot a field experiment to increase tax compliance. The experiment involved sending preemptive, behaviorally-informed email messages to taxpayers with a share of income…

Institution: World Bank

Team: eMBeD, Mind Behaviour and Development team