We investigate multinational firms' activities in tax havens and regulatory efforts to curb these activities in three steps. First, we discuss the evolution of information exchange and disclosure regimes among tax authorities, with a focus on the recent Countryby-Country (CbC) reporting regimes,...

This paper discusses the issue of profit shifting and "aggressive" tax planning by multinational firms. The paper makes two contributions. First, it provides some background information to the debate by giving a brief overview of existing empirical studies on profit shifting and by describing...

This paper discusses the issue of profit shifting and ‘aggressive' tax planning by multinational firms. The paper makes two contributions. Firstly, we provide some background information to the debate by giving a brief overview over existing empirical studies on profit shifting and by...

This paper discusses the issue of profit shifting and ‘aggressive’ tax planning by multinational firms. The paper makes two contributions. Firstly, we provide some background information to the debate by giving a brief overview over existing empirical studies on profit shifting and by...

In its 2015 Final Report on “Measuring and Monitoring BEPS, Action 11”, the OECD introduced six indicators to quantify and evaluate base erosion and profit shifting (BEPS) activity over time. In this study, we revisit three selected indicators, provide a numerical update for recent periods...

The use of information and communication technologies (ICT) within multinational groups leads to a rising number of intragroup cross-border transactions. At the same time, transactions and the organisational structures of affiliated groups become more and more specific and, thus, less...

Tax planning with intangibles has become one of the most popular and most vividly debated topics in international taxation. We incorporate various intellectual property (IP) tax planning models into forward-looking measures of effective tax rates, namely the disposal of intangibles to low-tax...

11 European countries now operate IP Box regimes that provide substantially reduced rates of corporate tax for income derived from important forms of intellectual property. We incorporate these policies into forward-looking measures of the cost of capital, effective marginal tax rates and...

This paper evaluates the Multilateral Convention to implement Pillar I Amount A, released by the OECD in October 2023, and the alternative proposal of Art. 12B for tax treaties suggested by the UN, with a particular emphasis on the perspective of developing countries. We conduct a comparative...