We run a large-scale natural field experiment to evaluate alternative strategies to enforce compliance with the law. The experiment varies the text of mailings sent to potential evaders of TV license fees. We find a strong effect of mailings, leading to a substantial increase in compliance. Among different mailings, a threat treatment which makes a high detection risk salient has a significant deterrent effect. Neither appealing to morals nor imparting information about others' behavior enhances compliance on aggregate. However, the information condition has a weak positive effect in municipalities where evasion is believed to be common. (JEL: C93, H26, K42)

No abstract

Many publishers use an honor system for selling newspapers in the street. We conducted a field experiment to study honesty in this market, finding that a moral reminder increases the level of honesty in payments, whereas the same message has no effect on whether one is honest. Reminding customers of the legal norm has no effect. We argue that these results are consistent with a preference for honesty, based on an internalized social norm. Auxiliary evidence suggests that the moral message remains effective when it is posted for longer periods, and even when it is removed again.

We use a model of self-centered inequality aversion suggested by Fehr and Schmidt (1999) to study voting on redistribution. We theoretically identify two classes of conditions when an empirically plausible amount of fairness preferences induces redistribution through referenda. We test the predictions of the adapted inequality aversion model in a simple redistribution experiment, and find that it predicts voting outcomes far better than the standard model of voting assuming rationality and strict self-interest.

According to the "Mill hypothesis", the tax burden from indirect taxation is underestimated because indirect taxes are less "visible" than direct taxes. We experimentally test the Mill hypothesis and identify tax framing as a cause of fiscal illusion. We find that the tax burden associated with an indirect tax is underestimated, whereas this is not the case with an equivalent direct tax. In a referendum to tax and redistribute tax revenue, fiscal illusion is found to distort democratic decisions and to result in "excessive" redistribution. Yet, voters eventually learn to overcome fiscal illusion.

We run a large-scale natural field experiment to evaluate alternative strategies to enforce compliance with the law. The experiment varies the text of mailings sent to potential evaders of TV license fees. We find a strong alert effect of mailings, leading to a substantial increase in compliance. Among different mailing conditions a legal threat that stresses a high detection risk has a significant and highly robust deterrent effect. Neither appealing to morals nor imparting information about others' behavior enhances compliance. However, the information condition has a positive effect in municipalities where evasion is believed to be common. Overall, the economic model of crime performs remarkably well in explaining our data.JEL classification: K42; C93

The focus for the Centre is research into individual and strategic decision-making using a combination of theoretical and experimental methods. On the theory side, members of the Centre investigate individual choice under uncertainty, cooperative and non-cooperative game theory, as well as theories of psychology, bounded rationality and evolutionary game theory. Members of the Centre have applied experimental methods in the fields of public economics, individual choice under risk and uncertainty, strategic interaction, and the performance of auctions, markets and other economic institutions. Much of the Centre's research involves collaborative projects with researchers from other departments in the UK and overseas. AbstractWe use a limited information environment to assess the role of confusion in the repeated voluntary contributions game. A comparison with play in a standard version of the game suggests, that the common claim that decision errors due to confused subjects biases estimates of cooperation upwards, is not necessarily correct. Furthermore, we find that simple learning cannot generate the kind of contribution dynamics commonly attributed to the existence of conditional cooperators. We conclude that cooperative behavior and its decay observed in public goods games is not a pure artefact of confusion and learning.

According to the "Mill hypothesis", the tax burden from indirect taxation is underestimated because indirect taxes are less "visible" than direct taxes. We experimentally test the Mill hypothesis and identify tax framing as a cause of fiscal illusion. We find that the tax burden associated with an indirect tax is underestimated, whereas this is not the case with an equivalent direct tax. In a referendum to tax and redistribute tax revenue, fiscal illusion is found to distort democratic decisions and to result in "excessive" redistribution. Yet, voters eventually learn to overcome fiscal illusion.