what is a theoryin intergovernmental
The term intergovernmental organization (IGO) refers to an entity  created by treaty, involving two or more nations, to work in good  faith, on issues of common interest. In â¦ the absence of a treaty an  IGO does not exist in the legal sense.aking the world better, one answer at a time. IGR provides a broad array of services to the public and state local and tribal governments. It supports couties municipalities, citizens and business by providing support services in many different ways.