This paper analyses the national tax treatment of interestexpenditures of multinational enterprises in a non-cooperative world. It is shown that the international tax systemgenerally leads to distortions in the capitaldecisions of multinational firms. In contrast to the existingliterature on the...

There is increasing empirical evidence that people systematically differ in their rates of return on capital. We derive optimal non-linear taxes on labor and capital income in the presence of such return heterogeneity. We allow for two distinct reasons why returns are heterogeneous: because...