Crisis and polity formation in the European Union.

Ernst Haas initially formulated neofunctionalism as a theory of incremental regional polity formation, treating crises as anomalies. Subsequent revisions of the theory incorporated crises as recurring phenomena. This paper introduces a novel conceptualisation and analysis of recent European Union crises, framing them as effects of and challenges to its regulatory polity.

Pandemic bordering: domestic politicisation, European coordination, and national border closures in the COVID-19 crisis.

When the member states imposed unilateral restrictions on the cross-border movement of persons and goods in their initial response to the COVID-19 pandemic, the EU appeared to relapse into the 'politics trap' of earlier integration crises. However, our analysis of entry restrictions for persons in France, Germany, Italy, the Netherlands, and Poland from the end of 2019 to the summer of 2022 shows no systematic relationship between domestic politicisation and national border closures. Rather, border closures followed the course of the pandemic as well as EU recommendations.

The Brexit puzzle: polity attack and external rebordering.

Brexit constitutes a puzzle for integration theory. Functionalist analyses have not only failed to predict the UK's exit but have also underestimated the disintegrative dynamics of the withdrawal negotiations. By contrast, postfunctionalism accounts for the disintegrative Brexit process but struggles to explain the unity and defence of supranational integration among the EU-27.