Behavioural Insights Projects

Rijkswaterstaat conducted a behavioural campaign aimed at urging drivers on the N36 provincial road in Overijssel to keep a safe distance, to be calm and relaxed while driving and to pay attention to the road. The campaign achieved a reduction in distractions, less irritation and an overall improved driving experience. Why this experiment was conducted: many serious accidents on N36 The spotlight has been on the N36 between Hardenberg/Ommen and Almelo/ Wierden for some time due to the frequent,…

Institution: Rijkswaterstaat (Netherlands Directorate-General for Public Works and Water Management)

In this experiment, various emails were sent to students in senior general secondary education (HAVO) and preuniversity education (VWO) to inform them about open days of teacher training programmes. The subject line that most caught their attention was ‘Are you looking for job security, challenge and a wide range of career opportunities?’ as well as a subject line in which a role model was introduced. Where emails mention teachers' starting salaries, students most often click links to more…

Institution: Netherlands Ministry of Education, Culture and Science

Are there ways to limit the accrual of excessive loan amounts by students? A letter sent to students with student loans who have received a supplementary grant increases the likelihood of them reducing their loan amounts. This increased likelihood translates to an annual average decrease of over € 150 in loan amounts for students receiving both a supplementary grant and a loan. Why this experiment was conducted: award of supplementary grant sometimes has little or no impact on loan…

Institution: Netherlands Ministry of Education, Culture and Science

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

Could we expect a higher vaccine uptake if vaccination appointments are no longer necessary? A campaign in neighbourhoods where vaccination rates were lagging sought to test whether emphasising convenience led to an increase in the number of administered vaccinations, by offering walk-in vaccination without an appointment. This indeed proved to be the case. Furthermore, getting a COVID-19 vaccine on a walk-in basis has become popular, along with the platform PrikkenZonderAfspraak. Why this…

Institution: National Institute for Public Health and the Environment (RIVM)

Are people more likely to file their tax returns correctly if they receive a thank-you in advance or afterwards? Analyses show that thank-you messages have no effect on compliance behaviour. Why this experiment was conducted: positive alternative sought To encourage citizens' tax compliance (i.e., paying their taxes on time and correctly), it is occasional practice to emphasise the risk of checks and fines in case of non-compliance. One drawback of this deterrent method is that it can damage…

Institution: Dutch Tax and Customs Administration

Some jobseekers remain unemployed because they focus on professions and felds in which the job prospects are not favourable. What happens when they receive personalised labour market information about more promising professions and positions that match their knowledge and skills? Compared to people who do not receive that information, they are more likely to move into professions that are completely different from the profession with poor job outlooks that was their first preference. Why this…

Institution: Netherlands Employee Insurance Agency (UWV)

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…

Institution: Netherlands Public Health Service

Rijkswaterstaat (the Directorate-General for Public Works and Water Management) wants to induce behavioural change in several areas. The circular economy is one example. A study examined whether consumers will make more sustainable choices if they have been complimented on their past actions or behaviour that were environmentally friendly or sustainable. This proved to be the case. Why this experiment was conducted: additional incentive for sustainable behaviour Behavioural change is…

Institution: Rijkswaterstaat's Circular Economy & Waste department

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)