(i) Prudential reason: Power sharing helps to reduce the possibility of conflict between social groups. For example in India, Hindi has not been imposed on the southern states. 

(ii) Moral reason: Power sharing is the very soul of democracy. People have right to be consulted on how they are to be governed. In India, reservation of seats for SCs and STs in state assemblies and parliament is an example of moral reason.

Different Forms of Power Sharing in Modern Democracies: These are : (i) Power sharing as existed in different organs of government, (ii) Power sharing seen at different levels of government, (iii) Power sharing seen at different social groups, (iv) The so-called power sharing among different political parties, pressure groups and movements viz.

I. Power Sharing in Governance:

(i) Legislature 

(ii) Executive 

(iii) Judiciary

II. Power sharing among governments at different levels:

 (a) Centre (b) State (c) Local self

III. Power-sharing among different social groups: Linguistic and Religious groups, e.g., Community Government in Belgium.

IV. Power sharing among political parties, pressure groups and movements:

(a) Political Parties 

(b) Pressure Groups 

(c) Movements