Visiting Researcher
The IAAEU (Institute for Labour Law and Industrial Relations in the European Union) at Trier University offers graduate students nearing the completion of their PhD and postdocs the opportunity to research for one to two months in residence at the IAAEU. Residing Scholars are invited to pursue their own research initiatives and develop new ideas.
With two professorships and 15 mostly legal and economic scientists, is the leading interdisciplinary organ in Germany for performing interdisciplinary research on (labour) law and (personnel) economic questions in one house. We are looking for young researchers that are interested in investigating questions concerning labour markets, personnel economics or the economic analysis of (labour) law during their stay in Trier. We offer a creative and dynamic field of research, an excellent infrastructure and the perfect environment to make decisive progress on a research project. We want to you to present your research plan and paper in our colloquium, where you will engage with our scientists to develop and bring new ideas together.
Electronic applications with a CV, a 1-2 page description of your research plans and contact information for 1-2 references are required.
Legal Guest Researchers
22.09.2025 - 30.06.2026 – Grillo, Guilherme
Universität Lissabon
01.09.2025 - 30.09.2025 – Prof. Pedro Madeira de Brito
Universität Lissabon
19.05.2025 - 21.05.2025 – Barbara Godlewska-Bujok
Doctor of Philosophy, University of Warsaw, Chair of Legal Problems of Administration and Management
12.05.2025 - 16.05.2025 – Vojtěch Jirásko
Palacký University in Olomouc Czech Republic
17.02.2025 - 21.02.2025 – Prof. Guilherme M. Dray
Universität Lissabon
17.02.2025 - 21.02.2025 – Prof. Pedro Madeira de Brito
Universität Lissabon
17.02.2025 - 21.02.2025 – Grillo, Guilherme
Universität Lissabon
10.12.2024 - 11.12.2024 – Stein, Jaqueline
Universität Halle
16.11.2024 - 30.11.2024 – Aiden Harker
Universität Halle
06.12.2023 - 06.12.2023 – Attila Kun
Károli Gáspár University, Ungarn
16.08.2023 - 17.08.2023 – Julian Schiller
Universität Trier
10.10.2022 - 21.10.2022 – Stein Evju
University of Oslo
01.01.2021 - 31.12.2022 – Guilherme Grillo
University of Lisbon, Portugal
01.04.2020 - 30.09.2020 – Prof. Dr. Stefan Treichel
Hochschule Emden-Leer, Germany
25.11.2019 - 08.12.2019 – Weidong Zhang
Leiden University, Netherlands
01.09.2019 - 31.12.2019 – Dr. Bettina Kiss
University of Budapest, Hungary
14.07.2019 - 27.07.2019 – Dr. Kuba Szmit
University of Gdańsk, Poland
01.07.2019 - 01.12.2019 – Hande Heper
Galatasaray University Social Sciences Institute, Turkey
27.05.2019 - 29.05.2019 – Dr. Miriam Kullmann
Vienna University of Economics and Business, Austria
14.05.2019 - 23.05.2019 – Annamaria Westregård
Lund University, Sweden
13.05.2019 - 24.05.2019 – Dr. Anri Botes
North West University, South Africa
30.04.2019 - 27.07.2019 – Özden Şahin
Kültür University Istanbul, Turkey
18.06.2018 - 31.12.2018 – Dr. Piotr Grzebyk
Head of the Polish Research Centre for Law and Economy of China; Faculty of Law and Administration University of Warsaw, Polen
18.06.2018 - 22.06.2018 – Gábor Mélypataki
University of Miskolc, Hungary
04.06.2018 - 16.07.2018 – Dr. Orhan Ersun Civan
Ankara University Faculty of Law, Turkey
12.02.2018 - 15.02.2018 – Adrienn Lukacs
University of Szeged, Hungary
31.05.2017 - 31.08.2017 – Serena Dell’Agli
University of Bologna, Italy
05.03.2017 - 10.03.2017 – Gabriella Mészáros
University of Szeged, Faculty of Law, Hungary
01.03.2017 - 30.04.2017 – Dr. Elisabeth Brameshuber
Chair of Professor Marhold, University of Vienna, Austria
28.11.2016 - 01.12.2016 – Shaun Bradshaw
University of East Anglia, England
07.06.2016 - 09.06.2016 – Dr. Atilla Kun
Károli Gáspár University of the Reformed Church in Hungary, Hungary
01.03.2016 - 30.04.2016 – Cinzia Carta
Bologna University, Italy
01.03.2016 - 30.03.2016 – Dr. Daiva Petrylaite
Vilnius University, Lithuania
09.12.2015 - 11.12.2015 – Dr. Eva Konta & Prof. Dr. Attila Kun
Budapest University, Hungary
07.12.2015 - 11.12.2015 – Prof. Dr. Tomas Davulis
Vilnius University, Lithuania
26.10.2015 - 30.10.2015 – Prof. Dr. Tamas Prugberger, Dr. Judit Barta & Dr. Timea Barzo
Miskolc University
26.10.2015 - 28.10.2015 – Dr. Tamas Gyulavari
Catholic Peter Pazmany University Budapest
14.05.2015 - 18.07.2015 – Katalin Bagdi
Miskolc University
01.10.2014 - 30.11.2014 – Anette Grønnerød-Hemmingby
University Oslo
01.09.2014 - 30.09.2014 – Dilek Dulay Yangin
Izmir University of Economics, Turkey
14.07.2014 - 24.07.2014 – Csilla Finta, Erika Csilla Varga, Adrienn Laczi & Balazs Rossu
University Szeged
20.05.2014 - 29.05.2014 – Prof. Dr. Támas Prugberger & Dr. Judit Barta
University Miskolc
20.01.2014 - 24.01.2014 – Prof. Dr. György Kiss
University Pécs
07.12.2013 - 31.01.2014 – Dr. Nora Jakab & Prof. Támas Prugberger
University Miskolc
25.11.2013 - 29.11.2013 – Camila Sailer Rafanhim de Borba
UniBrasil Curitiba
12.11.2013 - 15.11.2013 – Dr. Johann Mulder
University Oslo
09.11.2013 - 21.11.2013 – Dr. Attila Kun
Budapest University, Hungary
01.09.2013 - 07.09.2013 – Prof. Dr. Támas Prugberger
University Miskolc
01.08.2013 - 30.09.2013 – Sabrina Grivet Fetà
University degli Studi di Modena
03.06.2013 - 05.06.2013 – Christin Mett
University Jena
24.03.2013 - 31.03.2013 – Rita Kovács
University Szeged
04.03.2013 - 28.03.2013 – Mario Wertz
Daimler AG
19.02.2013 - 31.03.2013 – Keiko Ogata
University of New York at Buffalo, USA
Economic Guest Researchers
2026 - Brenda Adiwijaya
From January to the end of March, 2026, Brenda Adiwijaya is visiting the IAAEU. Brenda is a third-year doctoral student at the Department of Economics at the University of Insubria in Italy. In her dissertation, Brenda analyses the relationship between historical norms and modern-day decision on daycare use. During her stay at the IAAEU she will use German data to investigate the relationship between a women’s decision to join the labour force and childcare availability. We welcome Brenda Adiwijay to the IAAEU and hope that she will enjoy a productive and rewarding stay.
2025 - Martín Besfamille
From December 9 to 21, 2025, Professor Martín Besfamille visited the IAAEU. He is an Associate Professor at the Institute of Economics of the Pontifical Catholic University of Chile in Santiago and a Research Fellow at CESifo. His research focuses on fiscal federalism and decentralization, the circumvention of legal restrictions, and tax evasion.
During Martín Besfamille's stay at the IAAEU, he and Laszlo Goerke continued working on a joint project that they had started a few years earlier during a visit to CESifo in Munich. They continued the investigation during Martín Besfamille's last stay in Trier a year ago and on the occasion of two visits by Laszlo Goerke to Santiago de Chile. The joint project aims to analyze the impact of the interaction between tax and antitrust authorities in oligopolistic markets.
During Martín Besfamille's stay at the IAAEU, he and Laszlo Goerke continued working on a joint project that they had started a few years earlier during a visit to CESifo in Munich. They continued the investigation during Martín Besfamille's last stay in Trier a year ago and on the occasion of two visits by Laszlo Goerke to Santiago de Chile. The joint project aims to analyze the impact of the interaction between tax and antitrust authorities in oligopolistic markets.
2024 - Martín Besfamille
Dr. Martín Besfamille visited the IAAEU from December 12 to 21, 2024. He is an Associate Professor at the Instituto de Economía in Pontificia Universidad Católica de Chile and a research fellow at CESifo. Dr. Besfamille's main areas of research are fiscal federalism and decentralisation, the avoidance of legal restrictions and tax evasion. During his stay at the IAAEU, Martín Besfamille and Laszlo Goerke worked on a joint project they commenced some years ago when visiting CESifo in Munich and continued during a visit by Laszlo Goerke in Santiago de Chile early in 2024. The starting point is the insight that many government agencies pursue particular objectives but ignore the impact on the market interventions by other agencies. The joint project aims to analyse the relationship between the behaviour of two such agencies in the context of an oligopolistic model à la Cournot.
2023 - Cinzia Rienzo
Dr Cinzia Rienzo is a Senior Lecturer in Economics at the University of Brighton, UK and a Fellow at the Global Labor Organization (GLO). Her main research relates to applied micro-econometrics, focussing on labour topics, education, migration, subjective wellbeing and development issues. During her stay at the IAAEU from 27th to 30th June 2023, she conducts research related to the role of unions on immigrants’ wages, co-operating closely with Laszlo Goerke. She is also working on the impact of nuclear explosions on health and labour market outcomes of women in Kazakhstan, as well as investigating long-term effects of childhood exposure to violence on school-to-work transitions in developing countries.
2022 - Eva Markowsky
Eva Markowsky is a doctoral student in the final phase of her dissertation at the Department of Social Economics at the University of Hamburg. She is teaching and conducting research on topics related to labour, migration and gender economics under the supervision of Prof. Dr. Miriam Beblo. During her stay at the IAAEU from June 20th to July 1st 2022, she is going to present a meta-analysis on the influence of cultural norms and values on women's labour market participation in the economic's colloquium. This is also her topic of research during her stay in Trier. She is also currently working on the influence of language skills on the labour market success of migrants in Germany, as well as on the global connection between gender quotas in parliament and individual attitudes towards gender justice.
2022 - Anthony Lepinteur
Dr. Anthony Lepinteur is a Research Scientist at the Department of Behavioural and Cognitive Sciences at the University of Luxembourg and was active at the Institute from April to June. His main research interest lies in labour economics, public economics, genomics and the economics of subjective states. He recently published a number of articles on the effects of greater job insecurity on workers’ behaviours and outcomes. During his research stay at the IAAEU, he gave a talk in the economic colloquium on "Health Inequalities and the Labour Market: Causal Evidence from a Gene-Environment Setup."
2021 - Marco Gasperini
Marco Gasperini is currently pursuing his master degree in Economics at Bocconi University. He worked as a guest research assistant at the IAAEU from June 21 to September 10. During this period, besides his duties as RA, he autonomously conducted and presented in the Brownbag-Seminar a study concerning "The Effect of Residing in Segregated Areas on Individual Employment Status in Acute Moments of Crisis".
2020 - Michael Oberfichtner
Dr. Michael Oberfichtner is a researcher at the Institute for Employment Research. From January 6-8, 2020, he was a guest researcher at the IAAEU and gave a lecture in the Colloquium on Economics on "Just Windfall Gains? The Effects of a Home Care Subsidy on Child Care Choices and Maternal Employment".
Guest Researchers of the Library
2026 - Ernestyna Pachała-Szymczyk
In September, we were delighted to welcome Ernestyna Pachała-Szymczyk from the University of Warsaw as a visiting researcher at the IAAEU. During her research visit, she made use of the library’s collection for her work on the normative distribution of risk in the case of economically dependent self-employment. Her research focused on a comparative legal analysis and assessment of the regulations in selected European countries. We were delighted to support her academic research by making our library’s resources available to her.
2026 - Richard Hajdučik
From August 31st to September 8th 2026, Richard Hajdučik (Charles University, Prague) visited the IAAEU Library. During his research visit, he made use of the library’s collection for his academic work on illegal employment and unauthorised recruitment, as well as on employees’ holiday entitlements. We are delighted that our library was able to support his research.
2026 - Lars Breitmeier
We are delighted to have welcomed Lars Breitmeier (Leibniz University of Hanover, Chair of Civil Law, Employment Law and Civil Procedure) as a visiting researcher at the IAAEU Library. As part of his research, he made use of the library’s collection, in particular for comparative legal studies on collective bargaining law and European labour law. We are pleased that our library was able to support his academic work.
2026 - Participants in the GeTrab Meeting
As part of the GeTrab meeting on June 22 and 23, 2026, the participants visited the IAAEU library.
Prof. Dr. Daniel Ulber personally gave the international guests a tour of the library and introduced them to its unique collection. The visitors were impressed by the collection’s specialization and the diversity of its international literature. The library visit provided a valuable insight into the IAAEU’s academic infrastructure and generated great interest.
Prof. Dr. Daniel Ulber personally gave the international guests a tour of the library and introduced them to its unique collection. The visitors were impressed by the collection’s specialization and the diversity of its international literature. The library visit provided a valuable insight into the IAAEU’s academic infrastructure and generated great interest.
2026 - József Hajdú
Prof. Dr József Hajdú (University of Szeged, Hungary) has maintained close academic ties with the IAAEU for 27 years. This long-standing collaboration began during the tenure of Prof. Dr Rolf Birk and has continued uninterrupted over the years.
From 05.05 to 07.05.2026, Prof. Dr Hajdú was once again a guest at the Institute. During his stay, he made use of the IAAEU library for his research work.
We would like to thank Prof. Dr Hajdú for his long-standing association with us and the valuable academic exchange.
From 05.05 to 07.05.2026, Prof. Dr Hajdú was once again a guest at the Institute. During his stay, he made use of the IAAEU library for his research work.
We would like to thank Prof. Dr Hajdú for his long-standing association with us and the valuable academic exchange.
2025-2026 - Guilherme Grillo
Since the end of September 2025, Guilherme Levien Grillo has been a visiting researcher at the IAAEU. He is conducting research for one year in the IAAEU library on various models of collective labour law, comparing collective bargaining autonomy in Germany and Brazil. This research project constitutes the main focus of his doctoral dissertation, which is supervised by Professor Daniel Ulber.
For his research, Mr Grillo makes particular use of the IAAEU’s international research library, whose extensive collection on national and international labour law, labour economics, and human resource management provides a central foundation for his work.
For his research, Mr Grillo makes particular use of the IAAEU’s international research library, whose extensive collection on national and international labour law, labour economics, and human resource management provides a central foundation for his work.
2025 - Barbara Godlewska-Bujok
From 19 to 21 May 2025 Dr Barbara Godlewska-Bujok visited the IAAEU library. She is a doctor of law and an assistant professor at the Department of Business Law at the Faculty of Management, the University of Warsaw. Her research interests include the creation of labour law and its axiology, labour law in action, sustainable development and women’s work.
2025 - Vojtěch Jirásko
From 12 to 16 may 2025, we were delighted to welcome JUDr. Vojtěch Jirásko to our library. He is assistant and internal student of the doctoral study programme Theoretical Legal Sciences, specialization Private Law at Palacký University in Olomouc (Czech Republic). He is also a practising attorney.
Currently he is working on his dissertation focusing on compensation for pecuniary and non-pecuniary damage in employment law, with a particular emphasis on employee liability. In addition to the above, his previous research has focused on employment law issues relating to agency employment, employment in churches, and working via digital labour platforms.
He said: "I would like to express my gratitude for the opportunity to use the IAAEU library and its study rooms. The extensive collection of books and e-resources is impressive, and the library’s specialization in labour law provides significant support to scholars and researchers in this field. Being able to collaborate and visit the library has been invaluable, offering me new cross-border perspectives and ideas, some of which could certainly benefit the Czech academic community in comparative research. I look forward to future meetings."
Currently he is working on his dissertation focusing on compensation for pecuniary and non-pecuniary damage in employment law, with a particular emphasis on employee liability. In addition to the above, his previous research has focused on employment law issues relating to agency employment, employment in churches, and working via digital labour platforms.
He said: "I would like to express my gratitude for the opportunity to use the IAAEU library and its study rooms. The extensive collection of books and e-resources is impressive, and the library’s specialization in labour law provides significant support to scholars and researchers in this field. Being able to collaborate and visit the library has been invaluable, offering me new cross-border perspectives and ideas, some of which could certainly benefit the Czech academic community in comparative research. I look forward to future meetings."
2025 - Research group of the Universidade de Lisboa
In February 2025, the IAAEU library had the pleasure of welcoming three visiting academics from the Universidade de Lisboa. Prof. Pedro Madeira de Brito, Prof. Guilherme Machado Dray, and Guilherme Grillo used the IAAEU library to advance their research projects. During their stay, they were accompanied and supported by a dedicated group of students. It was a special honor for the IAAEU to continue this international friendship. Hopefully, their time with us was a valuable enrichment for their scientific work, it certainly was for us!
2024 - Aidan Harker
In November, we had the pleasure of welcoming Aidan Harker as a guest at our institute. Mr. Harker is a doctoral candidate at the Martin Luther University Halle-Wittenberg and is supervised by Prof. Dr. Daniel Ulber.
In his dissertation, Mr. Harker deals with the dogmatic foundations and effects of time-related regulations in employment law. At the IAAEU, he researched the regulation of working time in EU labor law, in particular the links between working time law and the social dimension of the internal market. The extensive stock of literature in the institution's library enabled him to gain new insights.
In his dissertation, Mr. Harker deals with the dogmatic foundations and effects of time-related regulations in employment law. At the IAAEU, he researched the regulation of working time in EU labor law, in particular the links between working time law and the social dimension of the internal market. The extensive stock of literature in the institution's library enabled him to gain new insights.
Contact
Prof. Dr. Laszlo Goerke
0651/201 - 4740