Imperial College London
The Behavioural Insights Team
NBER Working Papers and Publications
|May 2015||The Making of Homo Honoratus: From Omission to Commission|
with John A. List, Robert D. Metcalfe, Ivo Vlaev: w21210
Framing remains one of the pillars of behavioral economics. While framing effects have been found to be quite important in the lab, what is less clear is how well evidence drawn from naturally-occurring settings conforms to received laboratory insights. We use debt obligation to the UK government as a case study to explore the ‘omission bias’ present in decision making with large stakes. Using a natural field experiment that generates nearly 40,000 observations, we find that repayment rates are roughly doubled when the act is reframed as one of commission rather than omission. We estimate that this reframing of the perceived nature of the action generated over $1.3 million of new yield. We find evidence that this behavior may result from a deliberate ‘omission strategy’, rather than a...
|March 2014||The Behavioralist As Tax Collector: Using Natural Field Experiments to Enhance Tax Compliance|
with John List, Robert Metcalfe, Ivo Vlaev: w20007
Tax collection problems date back to the earliest recorded history of mankind. This paper begins with a simple theoretical construct of paying (rather than declaring) taxes, which we argue has been an overlooked aspect of tax compliance. This construct is then tested in two large natural field experiments. Using administrative data from more than 200,000 individuals in the UK, we show that including social norms and public goods messages in standard tax payment reminder letters considerably enhances tax compliance. The field experiments increased taxes collected by the Government in the sample period and were cost-free to implement, demonstrating the potential importance of such interventions in increasing tax compliance.
Published: Hallsworth, Michael & List, John A. & Metcalfe, Robert D. & Vlaev, Ivo, 2017. "The behavioralist as tax collector: Using natural field experiments to enhance tax compliance," Journal of Public Economics, Elsevier, vol. 148(C), pages 14-31. citation courtesy of