The existing models for the formation of governmental coalitions as far as Belgium is concerned do not score high in predictability. A more complex model, covering three fields, seven vectors and one strong actor among a limited number of decision-makers, fits much better. A prerequisite for a coalition is a majority within the elitist parties in parliament. Favoring coalition formation are the decision-making capabilities of the cabinet, the elitarian consensus on the basic values prominent in and for the Belgian society, the programmatic similarities and affinities of the political parties and their capacity to manipulate issues. Hampering coalition formation are the development of partisan options, the polarization of issues, and the internal dissensions within the political parties. This model stresses the combined action of strong structures and actors, paramount in Belgian society.