Failure to CAPTCHA Attention: Null Results from an Honesty Priming Experiment in Guatemala

Author： Kettle Stewart Hernandez Marco Sanders Michael Hauser Oliver Ruda Simon

Publisher： MDPI

E-ISSN： 2076-328x|7|2|28-28

ISSN： 2076-328x

Source： Behavioral Sciences, Vol.7, Iss.2, 2017-04, pp. : 28-28

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Abstract

We report results from a large online randomised tax experiment in Guatemala. The trial involves short messages and choices presented to taxpayers as part of a CAPTCHA pop-up window immediately before they file a tax return, with the aim of priming honest declarations. In total our sample includes 627,242 taxpayers and 3,232,430 tax declarations made over four months. Treatments include: honesty declaration; information about public goods; information about penalties for dishonesty, questions allowing a taxpayer to choose which public good they think tax money should be spent on; or questions allowing a taxpayer to state a view on the penalty for not declaring honestly. We find no impact of any of these treatments on the average amount of tax declared. We discuss potential causes for this null effect and implications for ‘online nudges’ around honesty priming.