Comparative political analysis

Formulate your answers eloquently and pay careful attention to structure and wording Consider your examples carefully and provide those that are both fitting and original; explain them thoroughly. You are expected to reference some key authors but avoid direct quotes or merely summarising core readings in your answers. Word limit: 500 words per question. All questions carry equal weight. Which factors make multi-national federations more stable? Illustrate with at least one stable and one unstable case (of a federation or a past federation)