Hertie School Research Repository
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Modelling Non-Linear Consensus Dynamics on Hypergraphs
No full textThe basic interaction unit of many dynamical systems involves more than two nodes. In such situations where networks are not an appropriate modelling framework, it has recently become increasingly popular to turn to higher-order models, including hypergraphs. In this paper, we explore the non-linear dynamics of consensus on hypergraphs, allowing for interactions within hyperedges of any cardinality. After discussing the different ways in which non-linearities can be incorporated in the dynamical model, building on different sociological theories, we explore its mathematical properties and perform simulations to investigate them numerically. After focussing on synthetic hypergraphs, namely on block hypergraphs, we investigate the dynamics on real-world structures, and explore in detail the role of involvement and stubbornness on polarisation
One year of geopolitical Commission - Time to get real
No full textTwelve months ago, Ursula von der Leyen announced that her Commission would be a geopolitical one. This promise was a response to the
crisis of multilateralism, the growing competition between the US and China, the fallout of Brexit, and the broad range of brewing and frozen conflicts in the EU’s neighbourhood. One year later, a geopolitically assertive EU is needed more than ever. The pandemic has underlined the vulnerability of Europe’s supply chains
and intensified the political rift between the US and China. The further the two superpowers move towards economic decoupling, the clearer it becomes how exposed Europe is to this rivalry. Meanwhile, the crises in the eastern Mediterranean, Mali, and Belarus have reminded Europeans of their geopolitical responsibilities
The EU‘s migration and asylum policy - Still under construction
No full textAfter a long delay, the European Commission on Wednesday last week presented its proposals for the reform of the Common European Asylum
System. Originally announced for April, the reform plans have become all the more urgent in the light of the fire at the Moria refugee camp. Commission Vice- President Schinas has described the proposals as a
house with three floors: agreements with countries of origin, a more rigorous border and return policy, and a solidarity mechanism among
member states. But the cement between the national building blocks remains brittle. The Commission‘s plans also do little to prevent miserable camps like the one on Lesbos from springing up on its front lawn in the long term
Time to come home - If the ESM is to stay relevant, it should be reinvented inside the EU
No full textWhen restarting work on reforming the European Stability Mechanism (ESM),
the Eurogroup should heed the lessons of the pandemic: The ESM has become politically unviable while there is apparently a lot more flexibility within the EU treaties than previously thought. Therefore, this policy brief argues that the old reform plans should be put to one side and the ESM should be reinvented inside the EU legal order if it is to remain relevant. Such a reinvention would create a coherent crisis management framework that would be politically sustainable in the long run
Differentiated Integration and Accountability in the European Union – An Analytical Framework
No full textDifferentiation has become an established feature of European integration in the past decades, and a variety of forms of differentiated
governance have been established either within the EU Treaties, by the EU Treaties or outside the EU legal framework. At the same time, differentiated integration poses particular questions about how to organise accountability in an EU in which different groups of member states participate in very different forms of integration. Bringing together the accountability and differentiation literature, the paper develops an analytical framework allowing for an indicator-based assessment of
accountability mechanisms. By proposing an analytical framework with concrete indicators for the assessment of accountability in various
differentiated integration formats, this paper closes a gap in the literature and opens new paths for the comparative analysis of accountability across various shades of European integration
Clear, fair and fast? Border procedures in the Pact on Asylum and Migration
No full textThe processing of asylum applications on the EU external borders is central to the Commission’s new Pact on Asylum and Migration. According to the Commission, the proposal is to deliver “clear, fair and faster” border procedures. We argue in this policy paper that attaining all three objectives is unrealistic. While the Pact prioritises clarity and speed, it risks impeding fundamental rights and therefore lacks in fairness. To address this imbalance, the paper makes three recommendations to policy-makers: focus on who should be exempted from border procedures, match faster procedures with accountability, and make fairness the procedure’s prime parameter.Die Ende September von der Kommission vorgestellten Pläne für eine Asylprüfung an den EU-Außengrenzen sollen laut Kommissarin Johansson für „eindeutige, faire und schnellere“ Verfahren sorgen. Während der Vorschlag den Zugang zum europäischen Asylsystem grundsätzlich neu sortiert, scheint ein gleichzeitiges Erreichen aller drei genannten Ziele unrealistisch. Zwar wird das Verfahren an der Grenze beschleunigt und dessen Anwendung vereinfacht, doch dies gefährdet die Einhaltung von Grundrechten und somit die Fairness des Verfahrens
Nonprofit management: Introduction and overview
No full textOver the past three decades or so, the nonprofit, voluntary, or third sector has undergone a major transformation from a small cottage industry to a major economic force in virtually every part of the developed world as well as elsewhere around the globe. Nonprofit organizations are now major providers of public services working in close cooperation with governments at all levels and increasingly find themselves in competition with commercial firms across various social marketplaces. This transformation has come with ever-increasing demands for enhancing the organizational capacities and professionalizing the management of nonprofit institutions. The Routledge Companion to Nonprofit Management is the first internationally focused effort to capture the full breadth of current nonprofit management research and knowledge that has arisen in response to these developments.
With newly commissioned contributions from an international set of scholars at the forefront of nonprofit management research, this volume provides a thorough overview of the most current management thinking in this field. It contextualizes nonprofit management globally, provides an extensive introduction to key management functions, core revenue sources and the emerging social enterprise space, and raises a number of emerging topics and issues that will shape nonprofit management in future decades. As graduate programs continue to evolve to serve the training needs in the field, The Routledge Companion to Nonprofit Management is an essential reference and resource for graduate students, researchers, and practitioners interested in a deeper understanding of the operation of the nonprofit sector
Migrant Fertility in Germany and the Eastern Enlargement of the EU
No full textThis paper uses data from the Migrant Samples of the German Socio-Economic Panel to study the fertility behaviour of women who migrated to Germany between 1990 and 2015. Special emphasis is placed on the large groups of migrants who have moved to Germany from Central and Eastern European (CEE) countries since the 1990s. We find that CEE migrants had higher first birth, but much lower second birth rates than migrants from other European countries. Different from the pattern of African and Middle Eastern migrants, we do not find a spike in first birth rates after migration. We also examined differences within the group of migrants from CEE-countries. In particular, we examined whether Ethnic German migrants differed from migrants who moved as third country national or those who moved after their country became EU-members with the right to free movement of labor. We find that CEE-migrants who moved when their country was a member state of the European Union display strongly reduced first birth rates
