1) Business term 2) Centralization 3) Consolidation 4) Integration 1) Centralization 
The process of political power and/or decision-making being acquired by fewer people; the opposite of democratisation.
Centralisation, or centralization (see spelling differences), is the process by which the activities of an organisation, particularly those regarding planning and decision-making, become concentrated within a particular location and/or group or keeping all of the important decisionmaking powers within head office or the centre of the organisation....