Why do local and regional political systems exist?

My answer: Local and regional political systems exist because smaller political units enables governing to be more efficient.

#effective

*effective

Yup!!!!!#efficient

Wrong!

Owie

My improvised answer: Local and regional political systems exist because smaller political units enables governing and the representation of local people to be more efficient as well as far more effectively than a central government.

It's probably not more efficient, but local and regional political systems represent the people in the locale more effectively than a central government.