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Institute
- Lehrstuhl für Öffentliches Recht, insbesondere deutsches und europäisches Verwaltungsrecht (Univ.-Prof. Dr. Ulrich Stelkens) (16)
- Lehrstuhl für Volkswirtschaftslehre, insbesondere Wirtschafts- und Verkehrspolitik (Univ.-Prof. Dr. Dr. h.c. Andreas Knorr) (14)
- Lehrstuhl für Politikwissenschaft (Univ.-Prof. Dr. Stephan Grohs) (6)
- Lehrstuhl für Öffentliches Recht, insbesondere Europarecht und Völkerrecht (Univ.-Prof. Dr. Wolfgang Weiß) (6)
- Lehrstuhl für Öffentliches Recht, Staatslehre und Rechtsvergleichung (Univ.-Prof. Dr. Dr. h.c. Karl-Peter Sommermann) (5)
- Lehrstuhl für Hochschul- und Wissenschaftsmanagement (Univ.-Prof. Dr. Michael Hölscher) (3)
- Lehrstuhl für öffentliches Recht, insbesondere allgemeines und besonderes Verwaltungsrecht (Univ.-Prof. Dr. Jan Ziekow) (2)
- Lehrstuhl für Sozialrecht und Verwaltungswissenschaft (Univ.-Prof. Dr. Constanze Janda) (1)
- Lehrstuhl für vergleichende Verwaltungswissenschaft und Policy-Analyse (Univ.-Prof. Dr. Michael Bauer) (1)
Economic Effects of Brexit
(2017)
Administrative and Security Challenges of Germany's Refugee Crisis: an Explorative Assessment
(2017)
Globally, there are challenges and threats that cannot be targeted by a single actor, even if it may be a national state, legitimized and willing to act. Hence, new collaboration regimes were created: international organizations, but also – formal or informal – cooperations with the private sector. Our paper discusses organization forms of these cooperations or ‘global public private partnerships’ (GPPP) theoretically and outlines framework conditions for the use of these global partnerships. Additionally, the health sector will be tackled exemplarily to delineate in how far GPPP are largely depending on the nature of the good provided.
Higher education in both Germany and the UK has undergone numerous changes in the last two decades. It seems worthwhile to examine how varying forms of HE governance and pan-European influences have played out upon these two national systems. Of note in particular are Bologna, European Standards and Guidelines in Quality Assurance, and various accreditation regulations. In this article we postulate to what extent these two systems may or may not be able to move forward in the imminent future. Is German higher education, for example, becoming more autonomous if it can display its own systems of quality control are working well (system-accreditation)? Has British higher education relinquished autonomy, as both research and teaching domains are subject to external review (REF/TEF)? What can we learn about the transformational impact any of these mechanisms are having? This chapter adresses these issues and asks which benefits or disadvantages are to be gained by different systems in article.
Technologies for the IoT have reached a high level of maturity, and a largescale deployment will soon be possible. For the IoT to become an economic success, easy access to all kinds of real-world information must be enabled. Assuming that not all services will be available for free, an IoT infrastructure should support access control, accounting, and billing. We analyze available access control and payment schemes for their potential as payment schemes in the IoT. In addition to security and privacy, we discuss suitability for direct client to sensor communication and efficiency.
We show shortcomings of existing protocols that need to be addressed by future research.
The importance of frequent backups is uncontroversial. Their creation is simpler than ever today thanks to widespread availability of cheap cloud storage. Common backup solutions, however, tend to be either insecure, inflexible or inefficient in typical backup scenarios.
In this paper, we present triviback, a lightweight and almost trivial, yet powerful solution for outsourcing backups to untrusted cloud storage. Based on recent research results on secure data deduplication, triviback combines strong confidentiality, authenticity and availability guarantees with flexibility and efficiency in terms of low storage and communication costs: Triviback supports efficient preservation of many backup states with storage costs comparable to state-of-the-art version control systems-while supporting full storage reclamation on deletion of arbitrary backup states.
We discuss its security, publish an implementation and perform an extensive evaluation of storage and communication costs.
We present sec-cs, a hash-table-like data structure for contents on untrusted storage that is provably secure and storage-efficient. We achieve authenticity and confidentiality with zero storage overhead using deterministic authenticated encryption. State-of-the-art data deduplication approaches prevent redundant storage of shared parts of different contents irrespective of whether relationships between contents are known a priori.
Instead of just adapting existing approaches, we introduce novel (multi-level) chunking strategies, ML-SC and ML-CDC, which are significantly more storage-efficient than existing approaches in presence of high redundancy.
We prove sec-cs's security, publish an implementation, and present evaluation results indicating suitability for, e.g., future backup systems that should preserve many versions of files on little available storage.
With Home Automation Systems steadily gaining popularity and affordability, the threat of attacks on these installations is increasing.
Previous research has shown that passive adversaries can obtain considerable amounts of information about the users' habits and about how they interact with their system. Although encryption and other measures to ensure condentiality in communication are becoming a standard, traffic analysis remains an unsolved problem. In this paper, we take a look at different research areas and show that existing solutions cannot be easily applied to this scenario. However, we establish a model for traffic analysis in Home Automation Systems which leverages existing research on Private Information Retrieval. Using this model, both attacks and countermeasures can be analysed and their effectiveness can be measured to yield comparable results. We also take a look at legal aspects, highlighting problem areas and recent developments in the interaction between technology such as Home Automation and legislature.
Reputation systems are useful to assess the trustworthiness of potential transaction partners, but also a potential threat to privacy since rating profiles reveal users’ preferences. Anonymous reputation systems resolve this issue, but make it difficult to assess the trustworthiness of a rating. We introduce a privacy-preserving reputation system that enables anonymous ratings while making sure that only authorized users can issue ratings. In addition, ratings can be endorsed by other users. A user who has received a pre-defined number of endorsements can prove this fact, and be rewarded e.g. by receiving a “Premium member” status. The system is based on advanced cryptographic primitives such as Chaum-Pedersen blind signatures, verifiable secret sharing and oblivious transfer.
Der Vortrag auf der ICON Konferenz 2017 in Glasgow untersuchte wie vor dem EuGH verweise auf Vertrauensschutz benutzt wurden, um Weitergabe von Dokumenten anch Verordnung 1049/2001 zu bewilligen oder zu verweigern.
The function and role of legal expert at ministry level of European states is very different. The following considerations focus on two major states of central European administration style, France and Germany.
Vortrag gehalten auf der CES Konferenz 2017 in Glasgow zum e-government in der europäischen Zollunion.
Inuit and Subjects in EU law
(2017)
Vortrag auf der ICON Konferenz 2017 in Kopenhagen zur Konstruktion des EU Rechtssubjekts anhand der Inuit Rechtsprechung des EuGH
UK report
(2017)
UK report in XL Table ronde organised by Aix-en-provence Centre de recherches administratives on 3rd-4th November 2017 on Citizens-administration: 40 years of evolution (summary available here: https://europeancommonwealth.org/2017/11/21/account-citizens-administration-40-years-of-administrative-reforms-aix-en-provence/). Paper to be submitted in April 2018 – for publication in Annuaire européen d’administration publique.
I-CONN Conference, 5th July, Copenhagen, Panel coordinated by C. Colombo and M. Eliantonio (“The Changing nature of the public administration; what role of judicial review?”). Paper from this presentation to be published with S Van Garsse under the title ‘Revisiting judicial review in the face of the changing nature of public administration – A case study drawn from European infrastructure projects’, submitted to European Public Law (special issue) (guest editors: Dr C Colombo and Dr M Eliantonio) (second stage of proof-reading).
Transparency in France
(2017)
European Conference Public Administration (EGPA), Milan, 30th August-1st September, panel on Law and Administration (organised by D Drago, B Marseille and P Kovac). Paper from this presentation to be published with E Slautsky, ‘Freedom of Information in France’, in D Drago, B Marseille and P Kovac (eds), The Laws of Transparency in Action: A European Perspective (Palgrave) (ca. 17,000 words, submitted), a significantly longer version of this paper is available on ResearchGate and SSRN (ca. 22,000 words). The SSRN paper was included in the Top Ten List for “PSN: Public Administration (Institutions)” on 04.10.2017 and in the Top Ten List for “International Administrative Law eJournal” on 19.10.2017.
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Workshop organised in Rome by Professor G. della Cananea (Common core principles of administrative law, 1st December). Summary available here: https://europeancommonwealth.org/2018/01/08/account-workshop-fin-de-siecle-administrative-law-judicial-standards-for-public-authorities-1890-1910/. Paper will be submitted later in 2018 for publication in an edited volume.
Searching for Order. Exploring the use of delegated and implementing acts in the EU customs code
(2017)
Artikel über Unterschiede in der gesetzgeberischen Ermächtigung der Kommission unter Art. 290 AEUV gegenüber Art. 291 AEUV anhand des EU Zollkode. Der Artikel findet empirische Unterschiede insofern als Art. 290 AEUV für die Ermächtigung der Festsetzung von 'Bedingungen' verwendet wird, und Art. 291 AEUV für die Ermächtigung zur Festsetzung von Verfahrensregeln.
The European Union adopts rules governing the protection of minors against harmful media content in the form of soft law. Using the example of media law and the theory of competition between legal orders, I try to shed light on the possible reasons for the regulatory choice of soft law. In the present paper, I propose that one important reason for the preponderance of soft law in a given policy area is the legislator’s ambition to bridge strongly converging policy fields with areas where diversity between Member States persists due to their varying cultural traditions and moral convictions.
Linguistic diversity is complicated. It involves two main elements: a headcount of “languages”, plus variation and variability within and between them. In this article we show how language policy in Europe claims to protect diversity but falls short on these two measures. Our legal analysis examines the institutional politics of the European Union, details of accession, and institutionalisation of multilingualism. We describe the manifestation of a multilevel language hierarchy: working languages are topmost, then official languages, then non-official languages. This largely privileges national languages, principally English. Meanwhile allochthonous (‘immigrant’) languages are discounted, despite outnumbering autochthonous (‘indigenous’) languages. Our legal analysis therefore suggests an early stumble for linguistic diversity: even limited to a headcount of “languages”, most are neglected. Next, our sociolinguistic analysis examines the Council of Europe’s approach to protecting minority languages. We show how diversity can decline even among protected languages, using two case studies: Cornish, a young revival; and Welsh, an older, more established revival. The Cornish revival could only proceed after agreement on singular standardisation. Meanwhile the internal diversity of Welsh as declined significantly, fuelled by the normative reproduction of its standard form in education, and by sharpened social pressures against local dialects. Moreover, by comparing the EU and the Council of Europe, we aim for an overarching argument about “European language policy”. We conclude that linguistic diversity is neglected, through exclusion of most of the languages spoken in Europe, and pressures on language-internal diversity within protected languages. Linguistic diversity is something richer and more complex than the limited goals of existing policies; it transcends language boundaries, and may be damaged by planned intervention.
Masterkurs "General Principles of Administrative Law" an der Ivane Javakhishvili Tbilisi State University (TSU). Im Rahmen des gemeinsamen Masterprogramms der Ivane Javakhishvili Tbilisi State University (Tiflis, Georgien) und der Universität Speyer hat Univ.-Prof. Dr. Ulrich Stelkens in Tiflis erneut die Veranstaltung "General Principles of Administrative Law" angeboten.
Vom 22. bis 23. Juni 2017 fand an der Vrije Universiteit Amsterdam im Rahmen des Forschungsnetzwerks Public Contracts in Legal Globalization ein Workshop zum Thema „The impact of competitive tendering and its regulation on the formation and execution of public contracts and concessions” statt. Im Rahmen der Veranstaltung referierte Univ.-Prof. Dr. Ulrich Stelkens, der Mitglied des Steering Committees dieses Netzwerks ist, über den Ist-Stand in Deutschland.
Governments and energy operators are frequently confronted with opposition to the construction of new energy infrastructure and a lack of public support. This is also true for the planning of new high-voltage overhead transmission lines. In this context, a question of interest for policy makers and energy operators is how residents react when they realize that they may be affected by future transmission lines in close proximity to their homes. This study provides evidence of how local residents respond to the announcement of transmission line corridor route alternatives (TLCRAs). By means of a natural experiment, it estimates the causal effects of spatial proximity to proposed TLCRAs during the planning phase of an energy project. The results reveal that proximity significantly enhanced residents’ risk perceptions with respect to landscape deterioration, property/house value reduction, and damages to human health. We also found that increasing proximity decreased residents’ support for grid expansion and increased the likelihood of performing information seeking behavior and becoming a member of a local citizens’ initiative. Finally, our findings suggest that the relationship between spatial proximity and the dependent variables are appropriately modeled by a distance decay function, showing that effects attenuate with increasing distance from the infrastructure site.
The characteristics of creative educational interventions and the way they are implemented in the field often make their evaluation a challenging task. This article uses an exemplary intervention from a large-scale consumer education program on climate protection to present the design, method, and results of a two-step evaluation procedure which allows evaluators to cope with such a situation. Step 1 aims to answer the question of whether or not an intervention actually has the intended effects. Step 2 then assesses the factors that contribute to those effects. Thus, such a two-step evaluation yields information, not only on which interventions are effective and should therefore be maintained, but also on how they should be designed to achieve maximum effects.
Although the Council of Europe has been working in the area of administrative law for decades, the body of pan-European general principles of good administration developed by this organisation remains mostly uncharted. This paper attempts to help fill this academic gap by examining the scope and content of the pan-European principles of administrative law stemming from the Council of Europe, with a special emphasis on the principle of good administration. In doing so, the sources of administrative law of the Council of Europe are considered together with the mechanisms by which they penetrate and permeate domestic legal systems. This paper concludes that the work done by the Council of Europe in the administrative field has contributed to a process of harmonisation in its Member States’ domestic law, but that the exact scope thereof has yet to be uncovered and requires further research.