Moral Constraints and the Evasion of Income Tax

This paper re-examines the individual income tax evasion decision in the simple framework introduced by Allingham and Sandmo (1972), where the individual taxpayer decides how much of his income is invested in a safe asset (reported income) and in a risky asset (concealed income). These early models could not convincingly reproduce the empirically observed positive influence of higher tax rates and higher gross income on tax evasion simultaneously. We replace the standard assumption that risk aversion is the factor limiting the extent of evasion by assuming risk neutral taxpayers and argue that this is a reasonable approximation. The observation that concealing income is costly leads to the conclusion that, instead of risk aversion, evasion costs (such as concealment expenses and moral cost) might be the factors that limit tax evasion. We reproduce the stylized facts not explained by older models for very general tax and penalty schemes, including those where the standard model definitely fails to do so.tax evasion, risk preferences, moral constraints

A Contest with the Taxman: The Impact of Tax Rates on Tax Evasion and Wastefully Invested Resources

We develop a moral hazard model with auditing where both the principal and the agent can influence the probability that the true state of nature is verified. This setting is widely applicable for situations where fraudulent reporting with costly state verification takes place. However, we use the framework to investigate tax evasion. We model tax evasion as a concealment-detection contest between the taxpayer and the authority. We show that higher tax rates cause more evasion and increase the resources wasted in the contest. Additionally, we find conditions under which a government should enforce incentive compatible auditing in order to reduce wasted resources.tax evasion, auditing rules, contest, moral hazard

A Contest with the Taxman - The Impact of Tax Rates on Tax Evasion and Wastefully Invested Resources

We develop a moral hazard model with auditing where both the principal and the agent can influence the probability that the true state of nature is verified. This setting is widely applicable for situations where fraudulent reporting with costly state verification takes place. However, we use the framework to investigate tax evasion. We model tax evasion as a concealment-detection contest between the taxpayer and the authority. We show that higher tax rates cause more evasion and increase the resources wasted in the contest. Additionally, we find conditions under which a government should enforce incentive compatible auditing in order to reduce wasted resources.tax evasion, auditing rules, contest, moral hazard

Cooperation in Partnerships: The Role of Breakups and Reputation

We investigate experimentally if endogenous partnership formation can improve efficiency in social dilemma situations. Subjects play multiple two-player public goods games, where they can break up with their current partner after every fourth game. Subjects without a partner provide rankings of the available other singles regarding their preferred subject to be matched with. A stable marriage mechanism determines the new matches. We vary the information subjects have when they express their preferences for their future matches and also if staying in a partnership leads to a cost or a bonus. We find that endogenous group formation can increase efficiency. Both the provision of contribution history at the time of re-matching and bonuses for staying in a partnership have positive effects. At least one of the two positive factors has to be present for an efficiency improvement. The presence of both leads to the best results.Social Dilemma, Endogenous Group Formation, Public Goods

A contest with the taxman - The impact of tax rates on tax evasion and wastefully invested resources

We develop a moral hazard model with auditing where both the principal and the agent can influence the probability that the true state of nature is verified. This setting is widely applicable for situations where fraudulent reporting with costly state verification takes place. However, we use the framework to investigate tax evasion. We model tax evasion as a concealment-detection contest between the taxpayer and the authority. We show that higher tax rates cause more evasion and increase the resources wasted in the contest. Additionally, we …nd conditions under which a government should enforce incentive compatible auditing in order to reduce wasted resources.Tax Evasion, Auditing Rules, Contest, Moral Hazard

Finding out who the crooks are - Tax evasion with sequential auditing

This paper investigates multi-item moral hazard with auditing contests. Although the presented model is widely applicable, we choose tax evasion as an exemplary application. We introduce a tax-evasion model where tax authority and taxpayer invest in detection and concealment. The taxpayers have multiple potential income sources and are heterogeneous with respect to their evasion scruples. The tax authority - unable to commit to an audit strategy - observes a tax declaration and chooses its auditing efforts. We show that a tax inspector prefers to audit source by source until he finds evidence for evasion to conduct a full-scale audit thereafter.Moral Hazard, Auditing Rules, Contest, Tax Evasion

Moral constraints and the evasion of income tax

This paper re-examines the individual income tax evasion decision in the simple framework introduced by Allingham and Sandmo (1972), where the individual taxpayer decides how much of his income is invested in a safe asset (reported income) and in a risky asset (concealed income). These early models could not convincingly reproduce the empirically observed positive influence of higher tax rates and higher gross income on tax evasion simultaneously. We replace the standard assumption that risk aversion is the factor limiting the extent of evasion by assuming risk neutral taxpayers and argue that this is a reasonable approximation. The observation that concealing income is costly leads to the conclusion that, instead of risk aversion, evasion costs (such as concealment expenses and moral cost) might be the factors that limit tax evasion. We reproduce the stylized facts not explained by older models for very general tax and penalty schemes, including those where the standard model definitely fails to do so.Tax Evasion, Risk Preferences, Moral Constraints

Tax Compliance and Firms' Strategic Interdependence

We focus on a relatively neglected area of the tax-compliance literature in economics, the behaviour of firms. We examine the impact of alternative audit rules on receipts from a tax on profits in the context of strategic interdependence of firms. In the market firms may compete in terms of either output or price. The enforcement policy can have an effect on firms' behaviour in two dimensions - their market decisions as well as their compliance behaviour. An appropriate design of the enforcement policy can thus have a "double dividend" by manipulating firms in both dimensions.tax compliance, evasion, oligopoly

The Excess Burden of Tax Evasion: An Experimental Detection-Concealment Contest

We present an experimental study on the wasted resources associated with tax evasion. This waste arises from taxpayers and tax authorities, investing costly effort in concealment, respectively detection, of tax evasion. We show that (socially inefficient) efforts depend positively on the prevailing tax rate, but not on the fine which is imposed in case of detected tax evasion. The frequency of evasion increases with tax rates. Additionally, we observe less tax evasion than a model with risk neutral taxpayers predicts. We find evidence that this is rather due to individual moral constraints than due to risk aversion.tax evasion, contest, experiment, tax rates, fines

Homo Sapiens Sapiens Meets Homo Strategicus at the Laboratory

Homo Strategicus populates the vast plains of Game Theory. He knows all logical implications of his knowledge (logical omniscience) and chooses optimal strategies given his knowledge and beliefs (rationality). This paper investigates the extent to which the logical capabilities of Homo Sapiens Sapiens resemble those possessed by Homo Strategicus. Controlling for other-regarding preferences and beliefs about the rationality of others, we show, in the laboratory, that the ability of Homo Sapiens Sapiens to perform complex chains of iterative reasoning is much better than previously thought. Subjects were able to perform about two to three iterations of reasoning on average.iterative reasoning; depth of reasoning; logical omniscience; rationality; experiments; other-regarding preferences