It is widely acknowledged that underground (unrecorded) economic activities play a major role in transition economies. Evaluations of the success and failure of the transition experience should therefore be based on total economic activity [TEA], namely, the sum of recorded and unrecorded...

A taxonomy of underground economies is elaborated based on the new institutional approach to economic development. Members of formal sectors confront different sets of transformation and transaction costs than do members of informal sectors and these differences are regarded as crucial to the...

This paper deals with the Tanzi method for the estimation of underground economy. The approach is discussed and modified. Refinements on the variables and on the econometric technique are proposed. The “adjusted” Tanzi method is then used to estimate the shadow economy in Italy along...

This paper examines why some transitions are more successful than others by focusing attention on the role of productive, protective and predatory behaviors from the perspective of the new institutional economics. Many transition economies are characterized by a fundamental inconsistency between...

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 the concealment and detection of tax evasion. We show that these socially inefficient efforts - as well as the frequency of tax...

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...

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...

Recent research on the unobserved economy suggests that the phenomenon has important implications for both macroeconomic policy and public finance. Attention is focused on the public finance implications by developing a simple macro model from which it is possible to derive a Laffer curve. The...

The method of "excess sensitivity" of Bajada (1999, 2001, 2002) indicates a large underground economy in Australia, with estimates of unrecorded income around 15 per cent of official GDP. These estimates concern policymakers, especially those agencies responsible for national accounts, tax...