Developing better environmental stimuli (“nudges) to promote self-care, prevention and vaccination against Covid-19.

Project: Research Project

Project Details


This project aims to develop and test different nudges that contribute to modifying the perception of effectiveness of self-care, prevention and vaccination measures against Covid-19 and improving the willingness to follow them.

To guide us in this task, we will use information about the effects of nudges in other areas of health and education.

The theory of nudges proposes that to improve the effectiveness of public policy it is necessary to design interventions that use the biases, emotions and psychological dispositions of the subjects to direct people's behavior towards better decisions.

An example of this type of interventions (nudges) are warning signs to prevent tobacco use and improve nutritional decisions.

However, in the context of the pandemic there has not been time to develop and, above all, test the effectiveness of this type of measures.

To fill this gap, this project aims to design a series of nudges that promote self-care, prevention and vaccination measures against Covid-19 and evaluate their usefulness to modify the perception of risk and effectiveness of the measures.

In the context of this project, this evaluation will be carried out by comparing controlled nudges (Type 2) that appeal to people's conscious deliberation vs. automatic nudges that appeal to emotions (Type 1).

The effectiveness of audios vs. images, videos vs. images, and nudges with positive vs. negative framing will also be compared.

These comparisons will be made by observing how nudges modify the estimated probabilities associated with contagion and the effectiveness of vaccination, the use of face masks and other health measures.

Also, a scale will be used to measure the willingness to follow the measures that will be constructed specifically for the study.

Willingness to pay will also be used to assess the perceived value of acquiring or rejecting the measures.

Analyzes will be performed using mixed methods and instrumental variable regressions.


Covid-19; nudges; boosts.
Short titlenudgecovid
Effective start/end date9/6/213/6/23

UN Sustainable Development Goals

In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This project contributes towards the following SDG(s):

  • SDG 16 - Peace, Justice and Strong Institutions

Main Funding Source

  • National


  • Bogotá D.C.


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