Research

Our research focuses on various issues in public law, usually from an interdisciplinary or comparative perspective.

The topics in which we have a particular interest include, amongst others,

• Social law and policy
• Equality and discrimination
• Migration and refugee law
• International human rights protection
• Strategic public interest litigation
• Law and Cognitive Sciences
• Legal Transfers and Reception
• Regional Integration & Transformation of the Nation State

You can find more detailed descriptions of current and past projects here (external link, opens in a new window).

Lists of publications can be found on our staff members’ (external link, opens in a new window) personal pages.

If you would like to collaborate with us in any of these areas, please contact lehrstuhl.graser@ur.de

Please note the relevant guidance (external link, opens in a new window) specifically for PhD research projects.

"Equality-Oriented Policies: Exploring a New Approach to Comparative Research in the Field of Social Policy"

This project was launched in 2010. It was funded by the DFG and was initially based at the Hertie School of Governance (external link, opens in a new window), before moving to the University of Regensburg at the start of 2011. In addition to Alexander Graser (external link, opens in a new window), the following people were involved: in Regensburg, Claudia Hofmann (external link, opens in a new window) and Lina Schneider (external link, opens in a new window); in Berlin, Ana Carolina Alfinito Vieira, David Jackson and Joachim Rahmann. Several external project partners also contributed.
The project has given rise to a new series of the same name published by Nomos. The first volumes are due to be published in the first half of 2014. At the same time, a number of research projects at the Chair are linked to this, including the doctoral theses (or thesis proposals) by Larissa Borkowski (external link, opens in a new window), Christian Helmrich (external link, opens in a new window), Susanne Köpcke, Stefan Reiter (external link, opens in a new window), Lina Schneider (external link, opens in a new window) and Dan Tidten (external link, opens in a new window), as well as Claudia Hofmann’s postdoctoral (external link, opens in a new window) research project.

Further details can be found here (external link, opens in a new window).

“Between Security and Flexibility: Instruments for Regulating Termination and Transition of Employment”

in cooperation with the Randstad Foundation – Impulses for our working culture

This project began on 1 April 2011 and is supported by the Randstad Foundation. Alexander Graser (external link, opens in a new window) and Christine Kosanovic (external link, opens in a new window) are involved. The project is nearing completion. The e-book (external link, opens in a new window) has already been published.

A brief project description can be found here (external link, opens in a new window).

“Age-Discrimination Rules and Their Effect on Stereotyping”

This project initially aimed to empirically investigate the effect of anti-discrimination regulations on the decision-making behaviour of those to whom they apply, as part of an interdisciplinary collaboration with Brian Nosek and Nicole Lindner from the Department of Psychology at the University of Virginia. Over the course of the project, the scope has broadened, so that our project work now focuses more generally on examining the cognitive science foundations of anti-discrimination and other equality regulations. In addition to Alexander Graser, Ana Carolina Alfinito Vieira is also involved in this work.

The project was funded by MaxNetAging, an international research network of the Max Planck Society. Three publications resulting from the project are currently ‘under review’; two of these are available via SSRN: http://papers.ssrn.com/sol3/papers.cfm?abstract_id=2071447 (external link, opens in a new window) and http://papers.ssrn.com/sol3/papers.cfm?abstract_id=2209999 (external link, opens in a new window)

“The World Bank Group’s influence on equality-oriented policies in Latin America”

You can find out more about this project, which Lina Schneider is working on as part of her PhD thesis, here (external link, opens in a new window).

"Equality-Oriented Policy in the Czech Republic"

by Susanne Köpke.

"The State’s Duty to Protect Older People"

You can find out more about this project, which Susanne Moritz undertook as part of her doctoral thesis, here (external link, opens in a new window).

"The influence of international social standards at national level – an analysis using the example of the social security system in South Africa"

This doctoral thesis project by Claudia Hofmann (external link, opens in a new window) has been completed.

"Equality-Oriented Policies in Japan"

You can find out more about this project, which Dan Tidten undertook as part of his doctoral thesis, here (external link, opens in a new window).

PhD projects broaden the scope of our research and enrich the work of the department. We therefore welcome enquiries at any time!

You can find the requirements you must meet to undertake a PhD at the Faculty of Law here. Unfortunately, I cannot guarantee acceptance onto the PhD programme to everyone who meets these requirements. Otherwise, I would be unable to fulfil my commitment to supervising your work properly, if only for reasons of time.

I therefore have to make a selection. My criteria include, in particular, how compelling your research proposal is, how well it fits in with the Chair’s other research activities (click here (external link, opens in a new window) for further information), and your academic achievements to date.

Your enquiry should therefore be worded in such a way that I can form as clear a picture as possible of these aspects. In particular, you should provide me with detailed information regarding:

• your academic background to date, for example in the form of a tabular CV, and
• your research ideas, for example in a brief outline or as part of your cover letter.

You are welcome to send me these documents informally; the easiest way is by email to lehrstuhl.graser@ur.de. There is no need to include copies of certificates or other supporting documents for the information you provide.

With regard specifically to your ideas on potential research topics, you should already have given some initial thought to the (possibly alternative) research question(s) you would like to explore. However, a fully developed research proposal is not yet required at this stage. If supervision is a possibility in principle, I would only expect such a detailed proposal once we have met in person and discussed the topic in more detail.

Monographs

Communities without Borders? On the Decentralisation of Legal Affiliation to Political Communities; Habilitation thesis, Tübingen 2008; 387 pp. ( (external link, opens in a new window)excerpt (opens in a new window). (This PDF is not accessible)) (external link, opens in a new window)

Decentralised Welfare State in a Federal Single Market? – A constitutional and social law analysis using the example of the United States of America, doctoral thesis, Berlin 2001; 388 pp. (excerpt (opens in a new window). (This PDF is not accessible))

Collected Papers and Special Issues

The reflection and stabilisation period for potential victims of human trafficking and labour exploitation pursuant to Section 59(7) of the Residence Act – Legal opinion, co-authored with Dr Christoph Lindner, published by: Service Centre against Labour Exploitation, Forced Labour and Human Trafficking; Arbeit und Leben Berlin-Brandenburg DGB/VHS e.V., 2020 (full text (opens in a new window). (This PDF is not accessible)).

Journal of Foreign and International Labour and Social Law (ZIAS), Issue 1/2020, special issue marking the 60th birthday of Ulrich Becker, edited jointly with Eva Maria Hohnerlein and Hans-Joachim Reinhard.

Strategic Litigation – Concept and Practice, (edited jointly with Christian Helmrich), Baden-Baden 2019, 142 pp.

Reception, Volume 6 of Rechtskultur – Journal of European Legal History, edited jointly with Martin Löhnig, Regensburg 2017.

Proportionality and Human Rights in German, Armenian and Georgian Constitutional Adjudication, edited in collaboration with Giorgi Burjanadze, Mariam Evoyan, Hayk Malkhasyan and Vakhtang Natsvlishvili, Tbilisi, Georgia 2017, 117 pp. (Full (opens in a new window). (This PDF is not accessible) text)

Grandfathering or Freedom of Planning – Labour Market Regulation in the Tension between Security and Flexibility, edited jointly with Heinz-Otto Mezger, e-book 2013, 94 pp.; available at http://www.randstad-stiftung.de/publikationen/bestandsschutz-oder-planungsfreiheit (external link, opens in a new window).

Perspectives on the Integration of Children with Disabilities into Schools – Comparative and Interdisciplinary Considerations, edited jointly with Ulrich Becker, Baden-Baden 2004; 169 pp. (Excerpt (opens in a new window). (This PDF is not accessible))

Articles and similar works

Finalité Revisited: On the Dynamics of Supranational Integratedness. In: András Zs. Varga – Lilla Berkes (eds.) Federalism as the Future of the Diverse EU?, pp. 223–246.
Miskolc–Budapest, Central European Academic Publishing. (Full text (opens in a new window). (This PDF is not accessible))

The Dilemma of the Presumptuous Watchdog: Constitutional Identity in the Jurisprudence of the German Federal Constitutional Court. In: András Zs. Varga – Lilla Berkes (ed.)
Common Values and Constitutional Identities—Can Separate Gears Be Synchronised?, pp. 13–49. Miskolc–Budapest, Central European Academic Publishing (Full text (opens in a new window). (This PDF is not accessible))

Legal Transfer: From a practice-led theory towards a theory-led practice?; in: Journal of Foreign and International Labour and Social Law (ZIAS) 2022, Issue 1, Vol. 36, pp. 78–82 (full text (opens in a new window). (This PDF is not accessible)).

Law Transfer: Concepts, Contexts and Interpretations – A Cartographic Attempt; in: Alpay Hekimler (ed.), Festschrift für Otto Kaufman – Otto Kaufmann için Armağan, Legal Yayınevi, Istanbul, 2021 ( (external link, opens in a new window)full text (opens in a new window). (This PDF is not accessible)).

Access to Justice: Not an Issue for German (Social) Legal Scholarship?; in: Journal of Foreign and International Labour and Social Law (ZIAS) 2020, pp. 13–30. ( (external link, opens in a new window)Full text (opens in a new window). (This PDF is not accessible)) (external link, opens in a new window)

Strategic Litigation – or: What Else Can Be Done with the Third Estate?; in: Rechtswissenschaft, September 2019, Issue 3, pp. 317–353. ( (external link, opens in a new window)Full text (opens in a new window). (This PDF is not accessible)) (external link, opens in a new window)

What Needs to Be Written about Strategic Litigation, pp. 9–19; in: Graser/Helmrich (eds.), Strategic Litigation – Concept and Practice, Baden-Baden 2019. ( (external link, opens in a new window)Full text (opens in a new window). (This PDF is not accessible)) (external link, opens in a new window)

Strategic Litigation: An Attempt at Understanding, pp. 37–41; in: Graser/Helmrich (eds.), Strategic Litigation – Concept and Practice, Baden-Baden 2019. ( (external link, opens in a new window)Full text (opens in a new window). (This PDF is not accessible)) (external link, opens in a new window)

The Supposed Shackles of Democracy: Why Climate Lawsuits Are a Promising Path (A response to Bernhard Wegener, ‘Urgenda – Saving the World by Court Order? Climate Lawsuits Test the Limits of Legal Protection); in Journal of Environmental Law 2019, pp. 271–278. ( (external link, opens in a new window)Full text (opens in a new window). (This PDF is not accessible)) (external link, opens in a new window)

Poverty Policy à la mode – On fears of losing boundaries and work incentives, eligibility for social care and dreams of automation; in: ZIAS 2018, pp. 126–135. ( (external link, opens in a new window)Full text (opens in a new window). (This PDF is not accessible)) (external link, opens in a new window)

The Court as a Stage for Protest, co-authored with Christian Helmrich; in: *Blick in die Wissenschaft* 38 (2018), pp. 43–47. (Full text (opens in a new window). (This PDF is not accessible))

Zombie with Potential – Notes on Comparative Law (not only) in Public Law; in: Rechtswissenschaft 2018, pp. 136–158. ( (external link, opens in a new window)Full text (opens in a new window). (This PDF is not accessible)) (external link, opens in a new window)

Managing Change, After All: Social Law (and Social Law Studies) in the Berlin Republic, pp. 297–326; in: Duve/Ruppert, Legal Studies in the Berlin Republic, Berlin 2018. ( (external link, opens in a new window)Full text (opens in a new window). (This PDF is not accessible)) (external link, opens in a new window)

Breaches of the State’s Duty to Protect People in Residential Care; in: Müller-Heidelberg et al. (eds.), Grundrechtereport 2018, Berlin 2018, pp. 55–58. ( (external link, opens in a new window)Full text (opens in a new window). (This PDF is not accessible)) (external link, opens in a new window)

Proportionality in German Public Law: Its Bases, Operation, and Function, pp. 8–16; in: Burjanadze/Graser/Evoyan/Malkhasyan/Natsvlishvili (eds.), Proportionality and Human Rights in German, Armenian and Georgian Constitutional Adjudication, Tbilisi, Georgia 2017. (Full text (opens in a new window). (This PDF is not accessible))

Comparative Law (and Legal Reception) as Cultural Studies: Introduction, co-authored with Martin Löhnig; in: the same authors (eds.), Rechtskultur – Journal of European Legal History, Regensburg 2017, pp. 1–3.

The State’s Duty to Protect Persons in Residential Care – An Interim Assessment; in: Spiecker gen. Döhmann / Wallrabenstein (eds.), Quality of Care in a Mix of Care Settings, Frankfurt am Main 2017, pp. 11–46. (Full text (opens in a new window). (This PDF is not accessible))

Pension from age 63: Is the exemption rule for recognising the last two years of unemployment benefit receipt constitutional?, co-authored with Christian Helmrich and Christoph Lindner, in: Soziale Sicherheit 2017, pp. 415–433.
A more detailed version has been published under the title ‘Pensions for those with particularly long insurance records and the crediting of periods during which income replacement benefits from employment promotion schemes were received prior to the start of pension payments’ as Working Paper No. 13/2017 of the Hugo Sinzheimer Institute, 44 pp. (Full text (opens in a new window). (This PDF is not accessible))

‘Taming the Biased Black Box? On the Potential Role of Behavioural Realism in Anti-Discrimination Policy’, co-authored with Ana Carolina Alfinito Vieira, Oxford Journal of Legal Studies 35 (2015), pp. 121–152, available on SSRN: https://papers.ssrn.com/sol3/papers.cfm?abstract_id=2209999. (external link, opens in a new window)

The Case Against the Case Against Affirmative Action, co-authored with Ana Carolina Alfinito Vieira, in: Dupper/Sankaran (eds.), Affirmative Action – A View From the Global South, Stellenbosch University Press 2014, pp. 63–87. (Full (opens in a new window). (This PDF is not accessible) text)

Age-based hiring discrimination as a function of equity norms and self-perceived objectivity, co-authored with Nicole Lindner and Brian Nosek, published January 2014, PLoS ONE 9(1): e84752. DOI: 10.1371/journal.pone.0084752
An earlier version is available on SSRN: http://ssrn.com/abstract=2071447 (external link, opens in a new window).

Research into the reception of law as an inverted comparative law study, in: Bodiroga-Vukobrat/Sander/Rodin (eds.), Globalisation and Legal Culture, Berlin, 2013, pp. 21–35. (Full text (opens in a new window). (This PDF is not accessible))

An Opportunity to Re-evaluate Protection against Dismissal, in: Graser/Mezger (eds.), Grandfathering or Freedom of Planning – Labour Market Regulation in the Tension between Security and Flexibility, ebook 2013; available at http://www.randstad-stiftung.de/publikationen/bestandsschutz-oder-planungsfreiheit (external link, opens in a new window), pp. 4–8.

Once again: On the Europeanisation of social policy; in Rödl/Bast (eds.), The Welfare State and Social Democracy in the European Union, Europarecht, Supplement 1/2013, pp. 15–30. (Full text (opens in a new window). (This PDF is not accessible))

Equality-Oriented Policies: A New Concept in Public Policy?, available at SSRN: 
http://ssrn.com/abstract=2220289 (external link, opens in a new window).
An earlier version was published as: ‘Políticas Orientadas para a Igualdade: Um Novo Conceito em Política Pública?’, in: Revista Brasileira de Direitos Fundamentais e Justiça, 4/2009, pp. 13–37. (Full text (opens in a new window). (This PDF is not accessible))

Legal Issues Relating to Civil Service, co-authored with Dan Tidten, in: Die Öffentliche Verwaltung (DÖV) 2010, pp. 878–885. (Full text (opens in a new window). (This PDF is not accessible))

The Family within the Framework of Solidarity-Based Communities – An Approach to Sociologically-Oriented Comparative Law; in: Becker (ed.), Legal Dogmatics and Comparative Law in Social Law, Baden-Baden 2010, pp. 373–391. (Full text (opens in a new window). (This PDF is not accessible))

Legislation for People with Disabilities in Europe and Asia – General Report, in: von Maydell/Pitschas/Pörtner/Schulte (eds.), Policy and Law for People with Disabilities in Europe and Asia – In the Context of Demographic Change; Cultural Prerequisites and Explanatory Hypotheses, Baden-Baden 2009, pp. 487–502. (Full text (opens in a new window). (This PDF is not accessible))

‘Approaching the Social Union?’ in: Eriksen/Joerges/Rödl (eds.), Law, Democracy, and Solidarity in a Post-National Union, Abingdon 2008, pp. 132–151. (Full text (opens in a new window). (This PDF is not accessible))

Taking Inclusion Seriously? – An Outside Perspective on the Khosa Decision of the Constitutional Court of South Africa, in: Becker/Olivier (eds.), Access to Social Security for Non-Citizens and Informal Sector Workers, Stellenbosch 2008, pp. 163–176. (Full (opens in a new window). (This PDF is not accessible) text)

Unbounded Solidarity? in: Legal History 2004, pp. 29–34. (Full text (opens in a new window). (This PDF is not accessible))

Integration from a Legal Perspective; in: Becker/Graser (eds.), Perspectives on the School Integration of Children with Disabilities – Comparative and Interdisciplinary Considerations, Baden-Baden 2004, pp. 63–92. (Full text (opens in a new window). (This PDF is not accessible))

Social Law without the State? in: Héritier/Scharpf/Stolleis (eds.), European and International Regulation After the Nation State – Different Scopes and Multiple Levels, Baden-Baden 2004, pp. 163–184. (Full text (opens in a new window). (This PDF is not accessible))

On the Fragmentation of Minimum Income Protection – A Hypothesis on the Relationship between the Scope of Application of a Social Law Framework and its Substantive Protective Content, in: Journal of Foreign and International Labour and Social Law (ZIAS) 2003, pp. 319–331. (Full (opens in a new window). (This PDF is not accessible) text)

‘Demo-cracy?’ – Fears of inconsistency in German constitutional law, in: Leviathan 31, pp. 345–361. 
An expanded version of this text has been published in Stolleis/Streeck (eds.), Current Issues in Political and Legal Governance in the Context of Globalisation, Baden-Baden 2007, pp. 77–96. (Full text (opens in a new window). (This PDF is not accessible))

A bulwark in a borderless world? – The problem of social-law affiliation, illustrated by the example of the Bavarian State Child-Rearing Allowance Act, in: Quarterly Journal for Social Law (VSSR) 2003, pp. 77–96. (Full text (opens in a new window). (This PDF is not accessible))

Protection against Dismissal and Social Law, in: Journal of Legal Policy (ZRP) 2003, pp. 119–121. (Full text (opens in a new window). (This PDF is not accessible))

From the Hammock onto the Trampoline – Workfare Policies in the US and their Reception in Germany, in: German Law Journal 4 (2003), pp. 201–221. (Full text (opens in a new window). (This PDF is not accessible))

The Status Quo and Prospects for the Law and Policy Concerning People with Disabilities – Country Report on the USA, in: von Maydell/Pitschas/Schulte (eds.), Disability in Asia and Europe: A Comparative Analysis of Policy and Law – Including a Contribution on the USA, Baden-Baden 2003, pp. 233–253. (Full text (opens in a new window). (This PDF is not accessible))

Protection against dismissal under social law – a building block for a more nuanced employment policy?, Zeitschrift für Rechtspolitik 2002, pp. 391–393. (Full text (opens in a new window). (This PDF is not accessible))

Social Policy in an Expanding EU, in: Journal of German and International Politics 2002, pp. 334–342. (Full text (opens in a new window). (This PDF is not accessible))

Discretionary Constitutional Judicial Power, in: DER STAAT 2001, pp. 603–621. (Full text (opens in a new window). (This PDF is not accessible))

‘Towards a Multilevel System of Social Security in Europe?’ in: Pieters (ed.), Confidence and Changes: Managing Social Protection in the New Millennium, European Institute for Social Security Yearbook 2000, The Hague 2001, pp. 215–235. 

Reprinted in: de Albuquerque Mello/Lobo Torres (eds.), Arquivos de Direitos Humanos 5 (Rio de Janeiro 2003), pp. 1–26. (Full text (opens in a new window). (This PDF is not accessible))

The National Welfare State in the Context of European Competition between Locations, in: Smekal/Starbatty (eds.), Old and New Economy: Towards an Innovative Symbiosis? Publications of the Hanns Martin Schleyer Foundation, Vol. 58, Cologne 2001, pp. 127–133.

Leftovers from the soup kitchen – Roland Koch’s recipes from Wisconsin; in: Blätter für deutsche und internationale Politik, 10/2001, pp. 1250–1258. (Full text (opens in a new window). (This PDF is not accessible))

Private Partners in Social Insurance – Report on Germany, in: Vansteenkiste/Devetzi/Goyens (eds.), Private Partners in Social Insurance, Leuven 2001, pp. 79–91. (Full text (opens in a new window). (This PDF is not accessible))

Statutory Old-Age Pensions and Prospects for Their Reform in the USA, in: Reinhard (ed.), Demographic Change and Old-Age Pensions: A Comparison of Pension Policy in Nine European Countries and the USA, Baden-Baden 2001, pp. 263–285. (Full (opens in a new window). (This PDF is not accessible) text)

Towards a Social Union – How ‘social’ is European social law? in: Journal of Foreign and International Labour and Social Law 2000, pp. 336–351. (Full text (opens in a new window). (This PDF is not accessible))

The US ‘job miracle’ – the framework of labour and social law, in: International Economic Law 2000, pp. 603–613. (Full text (opens in a new window). (This PDF is not accessible))

Do Hard Cases Make Bad Law? On the US Supreme Court’s decision in Saenz v. Roe, in: Journal of Foreign Public Law and International Law 2000, pp. 367–393. (Full text) (opens in a new window). (This PDF is not accessible)

Magic Money – Riester’s American Dream?, in: Boecken/Hänlein/Kruse/Steinmeyer (eds.), Public and Private Protection against Social Risks, Colloquium on the occasion of Bernd Baron von Maydell’s 65th birthday, Baden-Baden 2000, pp. 161–174. (Full text (opens in a new window). (This PDF is not accessible))

‘Experience rating’ in unemployment insurance – The US’s unique approach to protecting existing employment relationships, in: Journal of Foreign and International Labour and Social Law 1999, pp. 48–84. (Full text (opens in a new window). (This PDF is not accessible))

On the State of the Debate on Discrimination against Nationals – Some Critical Remarks and a Proposal for Procedural Treatment, in: Public Administration 1998, pp. 1004–1012. (Full text (opens in a new window). (This PDF is not accessible))

A turning point in the field of discrimination against nationals? – On the ECJ’s judgment in the Lancry case, in: European Law 1998, pp. 571–579. (Full text (opens in a new window). (This PDF is not accessible))

Commentaries and handbook entries

Commentary on Articles 20, 21 and 23 of the Charter of Fundamental Rights of the European Union in: Schwarze/Becker/Hatje/Schoo (eds.), EU Commentary, 4th edition forthcoming, Baden-Baden 2019 (from the 3rd edition onwards in collaboration with Stefan Reiter). (Full text of the 3rd edition (opens in a new window). (This PDF is not accessible))

Policy advice from a legal perspective in: Handbook of Policy Advice, edited jointly with Svenja Falk, Manuela Glaab, Andrea Römmele, Henrik Schober and Martin Thunert, Wiesbaden 2019, 39 pp. ( (external link, opens in a new window)excerpt (opens in a new window). (This PDF is not accessible)) (external link, opens in a new window)

Social Policy and Multilevel Governance, co-authored with Stein Kuhnle, in: Enderlein/Wälti/Zürn (eds.), Handbook of Multilevel Governance, Cheltenham 2010, pp. 399–410. (Full text (opens in a new window). (This PDF is not accessible))

Other publications

Applying legal knowledge for social good – Interview with A. Graser and C. Lindner in: NJW 15/2023, pp. 12–13 (full text (opens in a new window). (This PDF is not accessible)).

Public Law methodology, mock exam ‘A bit of old news?’ in: JURA 2020, Vol. 42, No. 3, pp. 282–29, co-authored with Maximilian Link and Matthias Meier.

Climate action in court: Is it allowed? Is it possible? Should it be done? 
Frankfurter Allgemeine Zeitung, ‘Einspruch’ column, 16 January 2020, (full text (external link, opens in a new window)).

On the brink of ‘Ruxit’? After two decades of Russian membership of the Council of Europe, international law experts take stock; review of Mälksoo/Benedek (eds.), Russia and the European Court of Human Rights, Cambridge 2018, in: *Frankfurter Allgemeine Zeitung*, 7 May 2019, p. 6. (Full text (opens in a new window). (This PDF is not accessible))

Review of Helen Duffy, *Strategic Human Rights Litigation – Understanding and Maximising Impact*, Oxford 2018, in: *Archiv des Völkerrechts* 2019, pp. 117–120. ( (external link, opens in a new window)Full text (opens in a new window). (This PDF is not accessible)) (external link, opens in a new window)

‘Constitutional complaints regarding care’, co-authored with Christoph Lindner, documented in: Helmrich (ed.), Constitutional Complaints against the Care Crisis: Documentation and Interdisciplinary Analyses, Baden-Baden 2017, pp. 17–105. (Full (opens in a new window). (This PDF is not accessible) text)

Foreword to Stefan Reiter, Between Attribution of Responsibility and Unequal Treatment – Prerequisites and Limits of the State’s Recourse to Private Individuals for Private Gain, Baden-Baden 2017, pp. 5 ff. (Full text (opens in a new window). (This PDF is not accessible))

Foreword to Larissa Borkowski, Castro’s Legacy – On the Practice of Equality-Oriented Policy in Cuban Socialism, Baden-Baden 2017, pp. 5 ff. (Full text (opens in a new window). (This PDF is not accessible))

Foreword to Christian Helmrich, ‘A Minimum Wage to Secure a Livable Income?’ – Legal and Social Science Perspectives, Baden-Baden 2015, pp. 7 ff. (full text (opens in a new window). (This PDF is not accessible))

Institutional Pilot Regions: A Catalyst for Structural Reforms?, co-authored with Jürgen Jerger (project leader), Manuela Troschke, Markus Lemberger and Johannes Müller, Working Paper Series of the Economics Section of the Institute for East and South-East European Studies, No. 326, February 2013; 87 pp., available at http://www.dokumente.ios-regensburg.de/publikationen/wp/wp_ios_326.pdf (external link, opens in a new window).

The global economic and financial crisis and its consequences for social policy – Germany in a comparative perspective, in: Maltepe University Faculty of Law Journal, published in 2011, 10 manuscript pages, copy not available.

Age-based hiring discrimination as a function of equity norms and self-perceived objectivity, co-authored with N. M. Lindner and B. A. Nosek, poster presented at the Annual Meeting of the Society of Personality and Social Psychology, Tampa, FL, USA, 2009.

Discussion report on Part III ‘Tax and Social Law in the Context of Cross-Border Issues’; co-authored with Cornelia Richter, in: Becker/Schön (eds.), The Tax and Welfare State in the Context of European Systemic Competition, Tübingen 2005; pp. 285–288.

‘Protection against dismissal is overrated’, an interview conducted by Christian Mayer, in: Max Planck Research 3/2004, pp. 54–57.
Under the title ‘Dismissal Protection is overrated’, the interview also appeared in the English edition of ‘MaxPlanckResearch’ in the same issue.

America as a Model, in: Financial Times Deutschland, 10 July 2002, p. 26.

Ely, Hirschman and the Half-Division Rule regarding Article 14 of the Basic Law – Constitutional Protection of Fundamental Rights in an Open State, in: A Europe of Citizens? – After the Introduction of the Euro and Before EU Enlargement, Hanns-Martin-Schleyer Foundation, Cologne 2002, pp. 74 ff.

Review of: Axel Ruoff, ‘The Flexibilisation of Collective Agreements – Collective and Statutory Opening Clauses with Particular Reference to Operational Emergencies’, in: Betriebsberater (BB) 2000, Issue 22, p. IX.

Review of: Jürgen Kruse, ‘The US Health Insurance System – Causes of its Crisis and Attempts at Reform’, in: Neue Zeitschrift für Sozialrecht (NZS) 2000, p. 26.

Time for New Solutions? – Some Theses on Discrimination Against Nationals, in: Europe as a Union of Law – A Necessary Interim Assessment in the Process of Deepening and Enlargement; Hanns-Martin-Schleyer Foundation, Cologne 1999, p. 88 ff.

Opportunities for regional welfare state autonomy in the federal market system – Food for thought from US law for the national and European debate, in: Change is Possible: Locations and Working Environments between Globalisation and a Maze of Regulations, Hanns-Martin-Schleyer Foundation, Cologne 1998, pp. 86 ff.