In this paper it is shown that allowing the deduction of work-related expenses has a strictly positive effect on tax efficiency only if two conditions hold jointly: (i) The expenses should be interpretable as real cost and (ii) the expenses should be required for increasing taxable income....

Forward looking measures like the well-known effective marginal tax rate developed by King and Fullerton (1984) are often criticized for not taking into account the complexity of the tax law. This paper derives a method of evaluating this kind of measure and of quantifying the bias resulting...

We analyze the impact of progressive taxation on irreversible investment under uncertainty. We show that if tax exemption is lower than sunk cost, higher tax rate will decelerate optimal investment by increasing the optimal investment threshold, while if tax exemption exceeds sunk cost, three...

Presumptive taxation, in which an income proxy is used as tax base, has been and is still used today in countries with very diverse situations - developing, transition and developed countries. Usually, this form of taxation is thought of as a revenue-raising device in presence of widespread...

This paper analyzes the impact of particular loss offset limitations on intrastate and crossborder investment decisions. Investment can be realized in the investor's domestic business, in a foreign branch or in a foreign subsidiary. The relative impact on the optimal real investment alternative...

We present an applied general equilibrium modelling approach to analyse employment and unemployment effects of labour tax cuts in an economy where wages are determined through firm-union bargaining at the sectoral level. In such a labour market regime, simulations for Germany show that labour...

In 2005, Austria modified its group taxation regime and now provides an option for crossborder loss-offset. We analyse the combined impact of Austria's new group taxation and lossoffset limitations on cross-border investment decisions of domestic corporations. Monte Carlo simulations in an...

We study how harmonization of corporate tax systems affects the stability of international cartels. We show that tax base harmonization reinforces collusive agreements, while harmonization of corporate tax rates may destabilize or stabilize cartels. We also find that bilateral and full...

For mitigating the problems of transfer pricing formula apportionment (FA) is discussed intensively. However, FA could even be more harmful than transfer pricing because income shifting would require changing economic decisions instead of just taking advantage of accounting options. We analyze...