Upon more than 400 judgements on direct taxation, the case law of the European Court of Justice has considerably shaped Member States' tax systems. Based on Member States' tax law adjustments in the context of four landmark rulings on corporate income taxation, we analyse whether case law is a...

We develop a new methodology to decompose the observed decline in multinational corporations' (MNCs') effective tax rates into profit shifting to tax havens and several other components. We apply this methodology to the best available data for MNCs headquartered in the US - from the Bureau of...

Any assessment of the effects of a tax reform has to be based on indicators of effective taxation. Various indicators have been developed to measure the effective taxation of income from capital. This paper briefly reviews their properties, before turning to an evaluation of the effects of the...

Globalisation and the fast-approaching digitalisation increase capital as well as labour mobility fostering tax competition among countries worldwide. Based on a unique dataset, we analyse the development of effective tax burdens on corporations and highly skilled labour for 26 OECD countries...

Tax incentives are a key component of governments' investment policy mix as they directly impact companies' tax burden. In this paper, we illustrate the EU's tax attractiveness as investment location over time in terms of effective average tax rates and evaluate potential tax reform options. Our...

The European Commission recently implemented the minimum tax directive (Pillar Two) to ensure that corporate profits are at least taxed at 15%. At the same time, it proposed a legislative initiative aimed at reducing the tax-induced distortions between debt and equity financing (debt-equity bias...

We use information from the tax returns of U.S. multinational corporations to address three questions related to tax competition. First, does tax competition or company tax planning behavior better explain recent decreases in the local effective tax rates faced by U.S. multinationals investing...

The project 'Effective tax rates in an enlarged European Union' is based on the methodology used for the calculation of effective tax rates (ETRs) as set out by Devereux and Griffith (1999, 2003). It extends the scope of the calculation of ETRs conducted under the study on effective levels of...

This paper develops a model of a monopolistically competitive industry with extensive and intensive business investment and shows how these margins respond to changes in average and marginal corporate tax rates. Intensive investment refers to the size of a firm’s capital stock. Extensive...

Forward-looking measures like the well-known effective marginal tax rate developed by King and Fullerton (1984) rely strongly on standardized assumptions on the effective use of depreciation deductions. This paper derives a method of assessing these assumptions empirically and of quantifying the...