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Our book is out now:

Proportionality in Action. Comparative and Empirical Perspectives on the Judicial Practice, Andrej Lang, Talya Steiner & Mota Kremnitzer (eds.)

Proportionality in Action presents an empirical and comparative exploration of the proportionality doctrine, based on detailed accounts of the application of the framework by apex courts in six jurisdictions: Germany, Canada, South Africa, Israel, Poland and India. The analysis of each country is written and contextualized by a constitutional scholar from the relevant jurisdiction. Each country analysis draws upon a large sample of case law and employs a mixed methodological approach: an expansive coding scheme allows for quantitative analysis providing comparable and quantifiable measurements, which is enriched by qualitative analysis that engages with the substance of the decisions and captures nuance, contextualizing the data and providing it with meaning. The book concludes with a comparative chapter that synthesizes some of the most interesting findings. Focusing on deviations of the practice of proportionality from theory, we conclude our argument in support of an integrated approach to the application of proportionality.

In this blog post we briefly introduce the book, especially the underlying methodological approach.

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Dezember 11th, 2025

Dec 10, 2025 – Presentation at the ILA Committee on Alternative Dispute Resolution in International Law

Many thanks to co-chairs  Serena Forlati and Amy Porges, as well as co-rapporteurs Yuliya Chernykh and Chiara Tondini, for inviting me to present my current […]

Oktober 22nd, 2025

October 22, 2025 – EUI Visitors’ Seminar

During my stay at EUI in Florence, on 22 October 2025 I gave a presentation at EUI Visitors’ Seminar on […]

Oktober 21st, 2025

October 21, 2025 – Presentation at the EUI International Law Working Group on „Reflections on ICJ’s climate change advisory opinion“

As part of my two-month research stay at the European University Institute, I gave a lecture on 21 October 2025 […]

Oktober 14th, 2025

October 14, 2025 – Presentation at the EUI on „The role and limits of fourth branch institutions in preserving and promoting democracy“

On 14 October 2025, as part of my two-month research stay at the European University Institute in Florence, I gave […]

September 27th, 2025

September 27, 2025 – Presentation at the inaugural ELU-S conference in Prague

From 25 to 27 September 2025, the inaugural conference of the European Law Unbound Society (ELU-S) took place in Prague […]

September 26th, 2025

Sep 25, 2025 – Presentation at the Ljubljana Sanctions Conference

On September 25 and 26, 2025, the Ljubljana Sanctions Conference took place at the University of Ljubljana – organized by […]

September 1st, 2025

1 September 2025 – Research stay at the European University Institute in Florence

Today marks the start of my two-month research stay at the Law Department of the European University Institute (EUI) in […]

September 1st, 2025

September 1, 2025 – Appointment as professor of public law, especially public economic law, at Chemnitz University of Technology

I was appointed as new professor at Chemnitz University of Technology (TUC) on September 1, 2025, and have now received […]

August 25th, 2025

New blog post on the ICJ’s Advisory Opinion on Climate Change

Following the advisory opinion on Obligations of States in respect of Climate Change of the International Court of Justice (ICJ), […]

Juni 28th, 2025

28 June 2025 – Presentation at the Humboldt-Princeton Workshop on “Separation of Powers and Judicial Independence” in Berlin

On 27 and 28 June 2025, I participated in an international workshop on “Separation of Powers and Judicial Independence” at […]