The need for these political institutions are
(i) To take decisions Countries need political institutions to take decisions regarding the welfare of the people. Institutions formulate various policies and welfare schemes.
(ii) To implement the decisions The decisions which have been taken care pf are to be implemented. So, countries need institutions to implement the decisions.
(iii) Institutions make it impossible for a rational decision to be made very quickly. Yet they also make it equally impossible for a bad decision to hurry through.
(iv) Meetings, commissions and routines include political institutions. It also leads to complications and delays.