"Global Challenges and Regional Responses in a Transition Era"

Prof. Ivo Mossig and Hannes Lehmann of the INF team presented their technical paper, "Filling Data Gaps in the Measurement of Income Inequality: A Complete Dataset of National GINI Coefficients, 1995–2019," at the 65th Conference of the European Regional Science Association (ERSA). Held in Sofia, Bulgaria, from 25 to 28 August 2026, the conference brought together more than 600 participants from 55 countries under the theme "Global Challenges and Regional Responses in a Transition Era."

"I was very pleased with the positive feedback on our approach of using a machine-learning algorithm based on a Gradient Boosting Machine to predict missing data," says Hannes Lehmann. Ivo Mossig adds: "The presentation also provided an excellent opportunity to introduce the CRC 1342 and our central database, WeSIS, to the regional science community." The approach helps to close substantial gaps in the available data, particularly for countries in the Global South. It now enables researchers to compare income inequality across different countries over time on the basis of a consistent and comprehensive dataset.

The dataset is available in WeSIS: https://wesis.org/indicators/2588

The corresponding Technical Paper No. 24 is available here: https://doi.org/10.26092/elib/5604

Contact:
Prof. Dr. Ivo Mossig
CRC 1342: Global Dynamics of Social Policy
Mary-Somerville-Straße 7
28359 Bremen
Phone: +49-421-218 67410
E-Mail: mossig@uni-bremen.de

Interview, 19.08.2026

In this interview, Seyedeh Mina Tahaei introduces herself. Since the beginning of the third funding period in early 2026, she has been a member of the Information Management Project (INF). As a doctoral researcher, she is currently working on her dissertation on Research Data Management in the social sciences. In addition, she serves as Chair of the Equal Opportunities Committee (EOC) and, in this capacity, represents the committee on the CRC 1342 Board.

The interview was conducted by Dr. Maximilian Hohmann.

What is your role within the Collaborative Research Centre 1342 "Global Dynamics of Social Policy" and which project are you involved in?

I am currently a first-year doctoral researcher at the CRC 1342 and I am part of the INF project, working on the development of the WeSIS platform. My research focuses on data sharing and FAIR data principles in Research Data Management for the social sciences, as well as tools and methods to make collaboration, data sharing, and RDM among social scientists easier.

What is your academic background? At which universities and in which countries did you study?

I started my bachelor’s in Computer Engineering at Iran University of Science and Technology in my hometown, Tehran. At the time, my main goal was to become a game designer and developer, so I joined the Game Design lab. There, I was introduced to topics such as User Experience and User Research, particularly in video games, and that motivated me to learn more about Human-Computer Interaction and continue my education in Media Informatics for my master’s at the University of Bremen. The same interest in User Psychology and HCI branched into the field of xAI (Explainable AI) during my master’s, inspiring me to pursue a PhD in Computer Science at the CRC 1342.

Which voluntary roles have you taken on within CRC 1342, and what motivated you to take on these responsibilities?

I am part of the Equal Opportunities Committee at the CRC, and currently serve as the Chair. In that role, I represent the committee on the CRC’s executive board, organize our meetings, and ensure the equal opportunity funds are used by CRC researchers to further their academic progress and career goals, and that the EOC offers support to everyone, especially people who are not always represented in the research community. Many researchers manage responsibilities such as caring for someone while pursuing their research, as well as settling into a new country and navigating culture and language, which can be overwhelming. Therefore, I was motivated to take the role because I wanted to support fellow researchers in handling the organizational side of academic life and connect with the CRC as a whole.

What do you find particularly interesting or rewarding about working within CRC 1342?

I really like the intersectionality of the fields of research at the CRC 1342. As a computer scientist, I now collaborate with social scientists as part of my research project, and there are many ongoing projects in the CRC across different aspects of social policy and the social sciences, allowing me to expand my knowledge and experience and collaborate with researchers from different fields.

What are you currently working on, and what are you particularly excited about in your research at the moment?

In particular, at the moment I am working on the factors that motivate social scientists when it comes to sharing their research data with the community and which designs and methods, particularly in the field of recommender systems, would facilitate this motivation. What fascinates me most is how closely intertwined different disciplines such as social sciences and humanities and design and technology are, and how they shape and influence each other again and again. I am very excited to see what I am going to learn and find out during the course of my PhD project.

Contact:
Seyedeh Mina Tahaei
CRC 1342: Global Dynamics of Social Policy
Mary-Somerville-Straße 7
28359 Bremen
Phone: +49 421 218-57090
E-Mail: tahaei@uni-bremen.de

Tasks: Collaboration in the collection and preparation of datasets, collaboration in the project and literature research

We are looking for one student assistant (10 hours/week) to join the DFG-funded research project B13 "Welfare States and Protest: Understanding the Contentious Outcomes of Social Policy in Africa" of the CRC 1342 "Global Dynamics of Social Policy" (Prof. Dr. Sebastian Haunss, Prof. Dr. Sophia Hunger) starting October 1st or first possible date. The position is intended to last for one year. However, due to administrative reasons, the employment contract can initially be drawn up for only three months.

The project B13 aims to systematically analyze for one world region in the Global South (Africa) how the socioeconomic effectiveness and political integration of social policies affect the levels of contention around these policies, and how the inclusiveness and scope of benefits of social policies interact with other factors like perceived grievances, political and discursive opportunity structures, and resources available to protesters and governments. This addresses the absence of the welfare state in protest research and will provide reliable data on protests in Africa by applying state of the art LLMs and integrating multimodal information sources in the analysis.

 

The following tasks are waiting for you:

• Collaboration in the collection and preparation of datasets (including web scraping and preliminary data cleaning)
• Collaboration in the project „Welfare States and Protest: Understanding the Contentious Outcomes of Social Policy in Africa“ providing support for project-related management and administrative tasks.
• Literature research and assistance in the preparation of data documentation.

 

You'll be a good fit for us if you have the following profile:

• Studies in social/political sciences or economics or a closely related subject (BA or MA student)
• Experience with programming skills in R and/or Python
• Preliminary knowledge or strong interest of African social policy and protests studies
• Motivation, commitment, ability to work in a team and to work independently
• Willingness to learn advanced data management and NLP
• Very good knowledge of English
• French and/or Arabic is an asset but no exclusion restriction
• Experience with spatial data analysis is a plus

 

What we offer:

• First-hand experience with the empirical analysis of multimodal data, LLMs and reproducible research best practices
• Support to further develop proficiency in R and/or Python
• Flexible working hours that are compatible with your studies
• A diverse working environment with equal opportunities

 

The University of Bremen is committed to equal opportunities and diversity. If you are interested, please send your application with a certificate of enrolment, a short letter of motivation, CV, transcript of records and, if applicable, relevant certificates as a single PDF file to the following e-mail address:

buero.hunger@uni-bremen.de

We encourage interested candidates to apply as soon as possible, as applications will be considered on a rolling basis and the vacancy will close once filled.

We look forward to receiving your application!

Contact:
Prof. Dr. Sophia Hunger
CRC 1342: Global Dynamics of Social Policy
Mary-Somerville-Straße 5
28359 Bremen
Phone: +49 421 218-58579
E-Mail: sophia.hunger@uni-bremen.de

News about Global Dynamics of Social Policy

The Collaborative Research Center "Global Dynamics of Social Policy" is represented on Bluesky as well as on Mastodon and X. On these channels you will always find the latest news about the CRC 1342.

Furthermore, we also recommend the blog Social Policy Worldwide of the SOCIUM Research Center Inequality and Social Policy at the University of Bremen.

Contact:
Dr. Maximilian Hohmann
CRC 1342: Global Dynamics of Social Policy
Mary-Somerville-Straße 3
28359 Bremen
Phone: +49 421 218-57058
E-Mail: hohmann@uni-bremen.de

Oxford University Press

Prof. Dr. Herbert Obinger and Prof. Dr. Carina Schmitt, both Directors of Project A09 "Worlds of Welfare Across the Globe. Origins and Outcomes", are members of the editorial team of The Oxford Handbook of Social Policies in the Global South. The volume was published by Oxford University Press last week and is now available.

[The Oxford Handbook of Social Policies in the Global South]

Collectively, the contributions consider three main research questions: What are the main social policies and institutions in place in the Global South? What explains their current level of development and future dynamics? And what are the outstanding factors influencing social policies in the Global South?

The volume provides a comprehensive overview of the current state of research on social policies at the global, regional, and national levels. The contributions were written with the explicit aim of offering an informed, accessible, and thorough introduction to social policies in the Global South. As such, the handbook serves as an ideal starting point for both specialists and non-specialists seeking to familiarize themselves with key themes, regions, and countries in the field of social policy in the Global South.

Contact:
Prof. Dr. Herbert Obinger
CRC 1342: Global Dynamics of Social Policy
Mary-Somerville-Straße 5
28359 Bremen
Phone: +49 421 218-58567
E-Mail: herbert.obinger@uni-bremen.de

Prof. Dr. Carina Schmitt
University of Bamberg
Feldkirchenstraße 21
96045 Bamberg
Phone: 0951-863 2734
E-Mail: carina.schmitt@uni-bamberg.de

Open Access

A recent article by Prof. Dr. Torben Klarl has been published in Economica, a leading international journal of economics published by the Department of Economics at the London School of Economics and Political Science (LSE). Since the beginning of the third funding phase of CRC 1342, he has contributed to Project A10, "Causal Impacts of Pension Reforms on Socioeconomic and Political Outcomes". The article has been published on an Open Access basis and is freely available to readers worldwide.

[https://onlinelibrary.wiley.com/doi/10.1111/ecca.70060]

Abstract:

This paper investigates the impact of creativity on technological advancement, long-term economic development, and social welfare, where creativity is determined endogenously through interactions within social networks. The analysis shows that an economy remains stagnant, exhibiting neither networking nor long-term growth, when the size of the creative class falls below a positive threshold. Once this threshold is exceeded, active networking between creative and non-creative individuals emerges, fostering sustained technological progress and income growth. The model is calibrated and used to simulate the transition from stagnation to sustained growth. The results indicate meaningful welfare gains from such a transition, driven by the cumulative effects of technological progress facilitated by networking.

Economica is an international journal covering research in all branches of economics published on behalf of the London School of Economics and Political Science Economics Department (LSE). It welcomes high-quality contributions from all parts of the international research community which are of interest to general readers. It is a leading economics journal, appearing high in the published citation rankings.

Torben Klarl is Professor of Macroeconomics at the University of Bremen. His research interests include artificial intelligence, climate change, political economy, development economics, and economic growth.

Contact:
Prof. Dr. Torben Klarl
CRC 1342: Global Dynamics of Social Policy, Faculty of Business Studies and Economics
Max-von-Laue-Straße 1
28359 Bremen
Phone: +49 421 218-66560
E-Mail: tklarl@uni-bremen.de

18 June 2026, Fundación Ramón Areces, Madrid

Dr. Aysegül Kayaoglu from the project A06 "Work-family Policies: Socioeconomic Outcomes and Policy Learning", presented the paper "Which Childcare Raises Maternal Employment? Public, Private and the Rationed Margin in Türkiye" at the 3rd Workshop on the Economics of Health and Human Capital, held at the Fundación Ramón Areces in Madrid on 18 June 2026.

Drawing on monthly employment histories of women combined with province-level data on childcare facilities, the paper examines how the design of childcare policy — not merely its availability — shapes maternal employment in Türkiye. It distinguishes between public and private provision and pays particular attention to the rationed margin, where demand for subsidised places exceeds supply, to identify which forms of childcare actually move mothers into work.

The workshop builds on earlier editions hosted in Madrid in 2024 and in Castellón de la Plana in 2025. Jointly organised by Universidad Autónoma de Madrid (UAM) and Universitat Jaume I (UJI), it brings together state-of-the-art econometric, data science and causal inference methods applied to questions in the economics of health and human capital. The single-day programme features ten papers, each allocated 30 minutes for presentation and open discussion, with participation capped at around twenty researchers. This year's keynote lecture was delivered by Gabriella Conti (University College London). 

Contact:
Dr. Aysegul Kayaoglu
MZES
A5, 6
68159 Mannheim
E-Mail: ayseguel.kayaoglu@uni-mannheim.de

Information and Exchange Meeting on 24.06.2026

Ahead of the start of the new BIGSSS cohort in September 2026, the Graduate School welcomed the new Doctoral Researchers who recently joined the CRC 1342. In addition to Professor Patrick Sachweh, Dean of the Bremen International Graduate School of Social Sciences, Dr. Regina Arant, Director of Studies, and Managing Director Dr. Christian Peters provided an overview of upcoming milestones, academic requirements, and the support services available through the Graduate School. Representing CRC 1342, the event was attended by its spokesperson Professor Sarah Berens and its Managing Director Dr. Irina Wiegand.

The Bremen International Graduate School of Social Sciences is one of Germany’s leading institutions for doctoral training in the social sciences. Its interdisciplinary programme is built around the core disciplines of political science, sociology, and psychology and is jointly operated by the University of Bremen and Constructor University. For Doctoral Researchers within the Collaborative Research Centre "Global Dynamics of Social Policy", participation in the Graduate School’s structured doctoral training programme forms an integral part of their academic qualification and professional development.

Contact:
Dr. Irina Wiegand
CRC 1342: Global Dynamics of Social Policy
Mary-Somerville-Straße 5
28359 Bremen
Phone: +49 421 218-58508
E-Mail: irina.wiegand@uni-bremen.de

Jour Fixe with Prof. Lengwiler on 17.06.2026

On 17 June 2026, Prof. Martin Lengwiler from the University of Basel delivered the final guest lecture of the current summer semester as part of the CRC 1342 Jour Fixe series. The Swiss historian presented results of his research on the diffusion of commercial insurance in East and West Africa. He was invited by Prof. Delia González de Reufels, Project Director of Project B15 and Dean of Faculty 08: Social Sciences at the University of Bremen.

Abstract:

This paper presents the results of a historical research project examining the diffusion of commercial insurance in non-Western countries. It focuses on sub-Saharan Africa, particularly East and West African countries, from the late colonial period to the early decades of independence (1940s–1980s). During the colonial era, insurance was primarily available to Western communities and local elites. After independence, the development of insurance markets depended on political and socio-economic conditions. In socialist countries such as Tanzania and Ghana, the insurance industry was nationalised and campaigns were launched for its 'Africanisation', but these countries still depended on Western expertise and reinsurance. In Western-oriented countries such as Kenya and Nigeria, markets were driven by competition between African and European companies. The growth of commercial insurance markets, especially life insurance, was also limited by the social welfare programmes of independent African governments. This paper discusses the factors that have shaped the development of African insurance markets and highlights the role of regional and international organisations (e.g. UNCTAD).

Martin Lengwiler is Full Professor of Modern European History at the University of Basel. He received his Habilitation degree at the University of Zurich in 2004 and has since held several visiting and substitute professorships, including at the Ecole des Hautes Etudes en Sciences Sociales (2009) and at the University of Basel (2006-2009). He was a Fellow at the Historical Research Institute, University of California, Irvine in 2001. He is also an associate member of the Science Policy Project Group at the Social Science Research Center Berlin (WZB). In 2009, he was appointed to an assistant professorship with tenure track (Modern European History) at the University of Basel. In 2012, the position was converted into a full professorship.

Contact:
Prof. Dr. Delia González de Reufels
CRC 1342: Global Dynamics of Social Policy, Institut für Geschichtswissenschaft / FB 08
Universitäts-Boulevard 13
28359 Bremen
Phone: +49 421 218-67200
E-Mail: dgr@uni-bremen.de

13 June 2026, University of Bremen

Together with the Research Institute Social Cohesion (RISC), the Collaborative Research Centre Global Dynamics of Social Policy participated in the University of Bremen's Open Campus on Saturday, 13 June 2026, with its own information booth. At more than 40 exhibition stands, numerous visitors explored opportunities and gained insights into studying, research, internships, and working at the university. The Open Campus was held under the motto "Open Worlds – Share Knowledge."

Further information: OPEN CAMPUS 2026 - Universität Bremen

Contact:
Dr. Maximilian Hohmann
CRC 1342: Global Dynamics of Social Policy
Mary-Somerville-Straße 3
28359 Bremen
Phone: +49 421 218-57058
E-Mail: hohmann@uni-bremen.de