In order to calculate the burden of a comprehensive and progressive income tax falling on a certain income source, an apportionment scheme for the entire tax burden has to be chosen. This raises the question of how to deal with losses, which is relevant for Germany in view of the heavy losses...

Local business profits respond to local business tax (LBT) rates that vary across municipalities. We estimate that a one percent increase in the LBT rate decreases the LBT base by 0.45 percent, based on the universe of German LBT return files, which include corporations and unincorporated...

We analyze the taxation of top personal incomes in Germany on the basis of an integrated data file of individual tax returns and a general household survey for the years 1992-2002. The unique feature of this integrated data set is that it includes all taxpayers in the top percentile of the gross...

We investigate how personal income taxes affect the portfolio share of personal wealth that entrepreneurs invest in their own business. In a reformulation of the standard portfolio choice model that allows for underreporting of private business income to tax authorities, we show that a fall in...