| 1 Introduction | Brack and GĂźrkan | Overview of the main European integration theories | Overview of crises in a historical perspective | Crisis: a situation which cannot he resolved with existing rules or tools and which will lead to a change in the dynamics of integration or the shape of the system of governance in the EU. |
| 2 | Lord | Legitimacy | Legitimacy crisis | Legitimacy crises occur where a political order is unable to satisfy all necessary conditions for the justification of its powers simultaneously. |
| 3 | Brack, Coman, and Crespy | Sovereignty | Economic crisis, migration crisis, rule of law crisis | Conflicting claims to sovereignty: these claims occur across four dimensions (national, supranational, parliamentary, and popular). |
| 4 | Hutter and Schäfer | Cleavage politics and European integration | Eurozone crisis, migration crisis | A critical moment of politicization: crisis situations (like the financial, Eurozone, and migration crisis) may lead to publicly visible contestation about the right course of action (as indicated by higher levels of politicization), and this, in turn, may intensify (or alter) the long-term restructuring of domestic conflict. In this scenario, crises are potential triggers for conflict and cleavage restructuring. |
| 5 | Hodson | New Intergovernmentalism | Economic/financial and migration crises | Political disequilibrium: it arises because of the disconnect between the pro-integration consensus among policymakers and some sections of European society over the direction of the EU. |
| 6 | Lefkofridi and Schmitter | Neo-functionalism | Economic/financial crisis, Brexit, migration crisis | Crisis: a situation which cannot be resolved without a significant change in the rules of the game. Crisis is an integral part of the integration process. |
| 7 | Rauh | Neo-functionalism, liberal intergovernmentalism, post-functionalism | An overview of recent crises, including economic/financial crisis, migration crisis, and Brexit | Public politicization: high public attention to EU affairs, polarizing opinions in the citizenry, and active mobilization of European issues in domestic political competition |
| 8 | Saurugger | Liberal intergovernmentalism, neo-functionalism, classical constructivism, sociological approaches | Economic/financial crisis | Crisis: a phase of disorder in the seemingly ânormalâ development of a system, which induces a sense of urgency |
| 9 | Manners | Critical Social Theory (CST) | Neoliberal economic, demographic social, climatic ecological, proxy conflict, and ethno-nationalist political crises of the twenty-first century | Planetary organic crisis as the broader context encompassing European communion |
| 10 | GĂźrkan and Tomini | (De-)Europeanization | Autocracy crisis | De-Europeanization: declining commitment to the EUâs founding values, in particular to democracy and the rule of law; and their contestation in some Member states and in the EUâs neighbourhood |
| 11 | Wunderlich and Gänzle | New regionalism | Disintegration in a comparative perspective and economic/ financial crisis | Critical juncture: a period of political and institutional challenge during which an agency is decisive in setting an institution on a new developmental pathway |
| 12 | Leruth | Differentiated integration | Maastricht Treaty referendum; the Swedish opt-out of the Eurozone, Greece, and Iceland after the economic/financial crises; Brexit | Integrational stagnation or differentiated disintegration |
| 13 Conclusion | Brack and GĂźrkan | An overview of European integration theories addressed in the book | COVID-19 crisis | The crisis is defined as a point in time (endogenous or indigenous shocks) and as a process (the impact of these shocks on the integration process). |