News
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GLOBTAXGOV team and CIAT launch general anti-avoidance rule toolkit 04 July 2022
The launch of the 'Toolkit for the Design and Effective Implementation of Domestic and International General Anti-avoidance Rules' generates strong in...
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Special lecture Jan Vleggeert: 'A citizen's perspective on conflicts of interest' 30 June 2022
When Professor of Tax Law Jan Vleggeert delivered his inaugural lecture in Leiden University’s Academy Building on 30 October 2020, only 30 people wer...
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CIAT and GLOBTAXGOV publish general anti-avoidance rule toolkit 22 April 2022
The Inter-American Center of Tax Administrations CIAT and the GLOBTAXGOV project have published a 'Toolkit for the Design and Effective Implementatio...
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Apply for the new minor Tax and Society at Leiden University 14 April 2022
Tax scandals, like the Panama Papers, the Paradise Papers, and the Pandora Papers, have made tax avoidance by large multinationals and rich individual...
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Irma Mosquera Valderrama speaks at Africa taxation webinar 21 February 2022
On 15 February 2022, Irma Mosquera Valderrama, Professor of Tax Governance, holder of the EU Jean Monnet Chair on EU Tax Governance EUTAXGOV and Princ...
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Mosquera Valderrama awarded a Jean Monnet Chair: 'Raise awareness of EU Standard of Tax Good Governance' 21 January 2022
Last November, it was announced that the European Commission has awarded a Jean Monnet Chair to Professor of Tax Law Irma Mosquera Valderrama. She wil...
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In the media: Martijn Nouwen's research into EU tax body 18 November 2021
Martijn Nouwen's research exposes for the first time to the general public how the 'secret' European Code of Conduct group has failed to eliminate var...
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Research Martijn Nouwen about secretive EU tax body revealed in media under #TheCode 12 November 2021
Under #TheCode, European media are reporting on Martijn Nouwens’s research on the secretive EU Code of Conduct Group which is tasked with tackling har...
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Irma Mosquera appointed as Professor of Tax Governance 02 November 2021
In her teaching and research, Mosquera primarily seeks the connection between tax law and other disciplines. Her appointment is effective as of 1 Nove...
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Federica Casano about EU tax haven blacklist 11 October 2021
One of the EU's most heralded weapons against tax avoidance and evasion falls prey to political whims, is applied arbitrarily, and lacks transparency,...
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Separate and holistic solutions to the problems of cross-border death and gift taxation 27 May 2021
The response of international organizations to the problems of cross-border death and gift taxation needs to be revisited, according to PhD candidate ...
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Dutch East Indies tax system was supposed to elevate the colony, but turned out to be token politics 20 May 2021
In the late 19th century, the Dutch government introduced a tax system in the Dutch East Indies, with the intention of transforming the colony into a ...
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Irma Mosquera Valderrama speaks at at the European Parliament 07 December 2020
The European Parliament’s newly created Subcommittee on Tax Matters held a public hearing on the EU’s work on harmful tax practices on 1 December 2020.
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How independent are tax academics? 29 October 2020
Many academics who specialise in tax law also work for commercial tax consultancies. It would very much seem as though the combination of different ro...
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Jan van de Streek appointed Professor of Tax Law in Leiden 02 October 2020
Jan van de Streek is a tax scholar who conducts research into the taxation of multinationals. His appointment will commence on 1 January 2021.