Behavioural economics and tax evasion: calibrating an agent-based econophysics model with experimental tax compliance data

Aurélie Bonein (), Cécile Bazart, Sascha Hokamp and Gotz Seibold
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Gotz Seibold: BTU - Brandenburg University of Technology [Cottbus – Senftenberg]

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Abstract: We observe in the literature a persistent lack of calibrating agent - based econophysics tax evasion models. However, calibrations are indispensable to the quantitative and predictive application of such computational simulation approaches. Therefore, we analyse individual data from two tax compliance experiments with social interaction: from information on tax enforcement measures in groups with income heterogeneity, where the audit probability is known and audit results are publicly and officially announced; and from information about the mean reported income of other group members in the previous period. In our agent - based econophysics simulation, we implement recent advances in behavioural economics, for instance to describe social interactions within a population of behaviourally heterogeneous taxpayers. For this purpose, we employ experimental data showing a bimodal distribution which allows us to apply Ising\textquoterights description of magnetism, a model adopted from statistical physics that can be related to binary choice models. We restrict agents in our econophysics framework to show selfish, imitating, ethical or random motives in their decisions to declare income. We find that the subjects in the experimental laboratory pursue rather mixed behaviour, including random and imitating motives.

Keywords: agent-based model; behavioural economics; calibration; econophysics; tax compliance experiments; tax evasion (search for similar items in EconPapers)
Date: 2016
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Citations: View citations in EconPapers (5)

Published in Journal of Tax Administration, 2016, 2 (1), pp.126-144

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Persistent link: https://EconPapers.repec.org/RePEc:hal:journl:hal-02062366

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