In this paper, we consider optimal tax enforcement policy in the presence of profit shifting towards tax havens. We show that, under separate accounting, tax enforcement levels may be too high due to negative fiscal externalities. In contrast, under formula apportionment, tax enforcement is...

This paper analyzes the tax haven investment behavior of multinational firms from a country that exempts foreign income from taxation. High foreign tax rates generally encourage firms to invest in tax havens, though significant costs of reallocating taxable income dampen these incentives. The...

This paper analyzes the tax haven investment behavior of multinational firms from a country that exempts foreign income from taxation. High foreign tax rates generally encourage firms to invest in tax havens, though significant costs of reallocating taxable income dampen these incentives. The...

This paper uses confidential firm-level panel data to provide new estimates on the extent of corporate profit shifting by German-based affiliates of multinational corporations. The estimated semi-elasticity of reported profits with regard to statutory foreign tax rates is 3.6, or 4.8 when...

The German federal government presented a legislative proposal on tax- and especially VAT law with the focus to combat VAT fraud in (international) ecommerce on July 31st 2018. This draft legislation is explained and discussed.

This paper develops a competition theory framework that evaluates an important aspect of the OECD's Harmful Tax Practices Initiative against tax havens. We show that the sequential nature of the process is harmful and more costly than a 'big bang' multilateral agreement. The sequentiality may...

The paper evaluates the working of German CFC rules that restrict the use of foreign subsidiaries located in low-tax countries to shelter passive investment income from home taxation. While passive investments make up a significant fraction of German outbound FDI, we find that German CFC rules...

This book showcases a multidisciplinary set of work on the impact of regulatory innovation on the scale and nature of tax evasion, tax avoidance, and money laundering. We consider the international tax environment an ecosystem undergoing a period of rapid change as shocks such as the financial...

This paper constructs time series of global profit shifting covering the 2015-19 period, during which major international efforts were implemented to curb profit shifting. We find that (i) multinational profits grew faster than global profits, (ii) the share of multinational profits booked in...

CORTAX is a macroeconomic model that focuses on corporate taxation and is used extensively for European Commission policy assessments. As a macroeconomic model, it simulates variables such as GDP, investment and employment, while being especially notable for its focus on corporate income...