Mathieu Halsema
Senior Associate - Attorney at Law
Mathieu J.H. Halsema, Ph.D, advises clients, such as industry-wide funds and employers, on employment law matters and proceedings regarding the scope of application of industry-wide regulations, such as collective labour agreements and collective pension regulations, on which he wrote a thesis at Erasmus University in Rotterdam, entitled 'A Categorical & Diagnostic System for Scopes of Industry (Collective Labour Agreement and Pension) Regulations in the Netherlands'.
Rotterdam
Dutch, English, German
Mathieu specialises in advice and legal proceedings regarding the scope of application of industry-wide regulations. His thesis, written at Erasmus University in Rotterdam, contains a legally substantiated, mathematical model that can be used to assess and determine the scope of industry (collective labour agreement and pension) regulations applicable to an employer (or an employer's business) in an unambiguous manner; in a manner that is consistent, reproducible and contributes to legal certainty. By applying this calculation model, the financial and other risks involved with the correct interpretation of the scope rules can be significantly limited. Furthermore, he is registered as an expert in the National Register of Judicial Experts ('LRGD') in the field of the scope of industry-wide regulations.
As an attorney for over 30 years, Mathieu has a broad and extensive experience in legal proceedings regarding both (international) commercial law and employment law; he has been involved in a number of important legal proceedings that have led to landmark rulings by the Supreme Court, such as in 2023 (HR 2 June 2023, ECLI:NL:HR:2023:847, NJB 2023/1480, Stinissen), 2018 (HR 21 December 2018, ECLI:NL:HR:2018:2363, NJ 2019/29, Unis), 2011 (HR 27 May 2011, ECLI:NL:HR:2011:BQ0010, NJ 2011/258, BAM) and 2011 (HR 15 April 2011, ECLI:NL:HR:2011:BP6601, NJ 2011/181, Van der Tas). Mathieu is a regular speaker at seminars and conferences.
Model for assessing the scope of industry-wide regulations
Mathieu holds a PhD from the Erasmus University Rotterdam; his thesis, entitled “A Categorical & Diagnostic System for Scopes of Industry (Collective Labour Agreement and Pension) Regulations in the Netherlands” is available for consultation here. A summary of the thesis can be found in Chapter 5, both in Dutch (pages 729 to 780) and in English (pages 781 to 828).
See what Erasmus University Rotterdam has to say about Mathieu here.
Contributions
Memberships
National Register of Judicial Experts in the field of the scope of industry-wide regulations (LRGD) 2024
Dutch Association of Employment Law Attorneys (2002)
Dutch Bar Association (NOVA) 1992
Qualifications
Ph.D, Industry (Collective Labour Agreement and Pension) Regulations, Erasmus University Rotterdam, 2025
Post doc Civil Cassation Law, Leiden University, 2014
Post doc Employment Law, Grotius Academy, 2002 (with honours)
Post doc International Trade Law, Erasmus Academy, 1998
Dutch Law, University of Utrecht, 1991
Mathieu Halsema
Senior Associate - Attorney at Law
Rotterdam
Dutch, English, German
<p>Mathieu J.H. Halsema, Ph.D, advises clients, such as industry-wide funds and employers, on employment law matters and proceedings regarding the scope of application of industry-wide regulations, such as collective labour agreements and collective pension regulations, on which he wrote a thesis at Erasmus University in Rotterdam, entitled 'A Categorical & Diagnostic System for Scopes of Industry (Collective Labour Agreement and Pension) Regulations in the Netherlands'.</p>
Mathieu specialises in advice and legal proceedings regarding the scope of application of industry-wide regulations. His thesis, written at Erasmus University in Rotterdam, contains a legally substantiated, mathematical model that can be used to assess and determine the scope of industry (collective labour agreement and pension) regulations applicable to an employer (or an employer's business) in an unambiguous manner; in a manner that is consistent, reproducible and contributes to legal certainty. By applying this calculation model, the financial and other risks involved with the correct interpretation of the scope rules can be significantly limited. Furthermore, he is registered as an expert in the National Register of Judicial Experts ('LRGD') in the field of the scope of industry-wide regulations.
As an attorney for over 30 years, Mathieu has a broad and extensive experience in legal proceedings regarding both (international) commercial law and employment law; he has been involved in a number of important legal proceedings that have led to landmark rulings by the Supreme Court, such as in 2023 (HR 2 June 2023, ECLI:NL:HR:2023:847, NJB 2023/1480, Stinissen), 2018 (HR 21 December 2018, ECLI:NL:HR:2018:2363, NJ 2019/29, Unis), 2011 (HR 27 May 2011, ECLI:NL:HR:2011:BQ0010, NJ 2011/258, BAM) and 2011 (HR 15 April 2011, ECLI:NL:HR:2011:BP6601, NJ 2011/181, Van der Tas). Mathieu is a regular speaker at seminars and conferences.
Model for assessing the scope of industry-wide regulations
Mathieu holds a PhD from the Erasmus University Rotterdam; his thesis, entitled “A Categorical & Diagnostic System for Scopes of Industry (Collective Labour Agreement and Pension) Regulations in the Netherlands” is available for consultation here. A summary of the thesis can be found in Chapter 5, both in Dutch (pages 729 to 780) and in English (pages 781 to 828).
See what Erasmus University Rotterdam has to say about Mathieu here.