The institutional design of democratic regimes has attracted much attention from a legal and political perspective, because it affects the actual distribution of power among political actors and the effectiveness of
their decisions. Based on a classification of the democratic institutional design which focuses particularly on
the triangular interactions among Presidents (or Heads of State), Governments, and Parliaments (Ieraci 2003,
2021b), this research note similarly tackles the institutional design of twenty microstates. In the adopted
perspective, the institutional design of democracy consists of the institutional roles of authority, procedural
resources attached to them and arenas of confrontation among the roles. A measurement of the powers of
the authority roles in these microstates is provided, together with an evaluation of the institutional equilibria.
