| AECR | Alliance of European Conservatives and Reformists |
| AEI | Alliance for European Integration |
| ALDE | Alliance of Liberals and Democrats for Europe |
| BEL | Bulgarian European Left |
| BYuT | Bloc of Yulia Tymoshenko |
| CDM | Christian Democratic Movement of Georgia |
| CDPP | Christian-Democratic People’s Party of Moldova |
| CEE | Central and Eastern Europe |
| CIS | Commonwealth of Independent States |
| DCFTA | Deep and Comprehensive Free Trade Agreement |
| DPM | Democratic Party of Moldova |
| EaP | Eastern Partnership |
| ECPM | European Conservative Political Movement |
| EDS | European Democrat Students |
| EL | European Left |
| EL FEM | Women of the Party of the European Left |
| ENDYL | European Network of Democratic Young Left |
| ENP | European Neighborhood Policy |
| EP | European Parliament |
| EPP | European People’s Party |
| EU | European Union |
| FES | Friedrich-Ebert-Stiftung |
| FNS | Friedrich-Naumann-Stiftung |
| IFLRY | International Federation of Liberal Youth |
| IRI | International Republican Institute |
| HZDS | People’s Party—Movement for a Democratic Slovakia |
| KAS | Konrad-Adenauer-Stiftung |
| LDPM | Liberal Democratic Party of Moldova |
| LDYM | Liberal Democratic Youth of Moldova |
| LYMEC | European Liberal Youth |
| NDI | National Democratic Institute for International Affairs |
| NIMD | Netherlands Institute for Multiparty Democracy |
| OSCE | Organisation for Security and Cooperation in Europe |
| PCRM | Party of Communists of the Republic of Moldova |
| PES | Party of European Socialists |
| QCA | Qualitative Comparative Analysis |
| UNM | United National Movement |
| VVD | Volkspartij voor Vrijheid en Democratie (People’s Party for Freedom and Democracy |
| YEPP | Youth of the European People’s Party |
