I work as a postdoctoral researcher in the Development Economics Group at Wageningen University & Research (The Netherlands). I am an applied microeconomist, with research interests in the intersection of behavioral, environmental, and development economics. I use experimental and quasi-experimental methods, including lab and field experiments, and observational studies. I obtained a Ph.D.in economics from Los Andes University in 2020.
SPREADING THE WORD!
SPILLOVER EFFECTS OF A SOCIAL NORM INFORMATIONAL CAMPAIGN TO PROMOTE PRO-ENVIRONMENTAL BEHAVIOR
This paper reports a randomized field experiment designed to produce and measure spillover effects of a social norm informational campaign on residential water use in Colombia. To do so, the randomization process is at two levels. First, a percentage of households directly exposed to periodic reports is randomly assigned across eight water utilities. This is the level of saturation that ranges between 0\% and 75\%. Second, randomly assign the treatment status to households within the utilities according to the saturation. Untreated households in utilities with positive saturation are spillovers, and those in saturation zero are the control. I found that accounting for spillovers leads to higher effects water reductions, reconciling one of the critics to these interventions. In particular, in small urban municipalities with high levels of social capital. This paper emphasizes the use of social comparisons as an effective tool to promote pro-environmental behaviors. Accounting for spillovers accurately could help to diffuse desirable behaviors.