We here examine the frequent claim that an increase in the tax base and a decrease in tax evasion will compensate for a loss in tax revenues caused by a lower tax level. Using a unique data set for the estimated underground economy in Italy from 1982 to 2006, we found that a loss in tax revenues...

Some authors argue that informality is associated with distorted firm decisions and inefficiency. In this paper, I assess the quantitative effect of incomplete tax enforcement on aggregate output and productivity using a dynamic general equilibrium framework. I calibrate the model using data for...

We study the taxation of the minimum wage in an environment with imperfect enforcement and informality. We leverage an increase in the audit threat for earnings below a reporting threshold at twice the minimum wage in Hungary and estimate reporting and employment responses with administrative...

The IMF Fiscal Affairs Department's Revenue Administration Gap Analysis Program (RA-GAP) aims to provide a quantitative analysis of the tax gap between potential revenues and actual collections, and this technical note explains the concept of the tax gap for corporate income tax (CIT), and the...

In a simple cash-credit model, I study the effects of the combination of costly tax collection and tax evasion on fiscal and monetary policy for optimal resource allocation. Allowing the informal sector to use cash more intensively than the formal sector, I compute the optimal interest and tax...

In this paper, I investigate to what extent the cross-country variation in nominal interest rates can be explained as being due to governments' optimal response to economic conditions such as tax collection costs, tax evasion and government consumption needs. In particular, I study the effects...