Because it is government controlled mainly, and at each level (state, district, municipal) there are way too many squabbling parties that would need to agree.

Because it is government controlled mainly, and at each level (state, district, municipal) there are way too many squabbling parties that would need to agree. I recently listened to a great EconTalk (http://www.econtalk.org/archives/2015/03/david_zetland_o.html http://www.econtalk.org/archives/2015/03/david_zetland_o.htm...) on the subject.