What determines the extent of sharing of power between the Union and the State Government?

In any federation, the Constitution determines the extent of sharing of power between the Union and the State Governments. For e.g. in Brazil, The Constitution of the Federative Republic of Brazil determines the extent of power-sharing between its 27 federative units including the federal district. In India, the Seventh Schedule of the Indian Constitution delimits the subjects of each level of governmental jurisdiction, dividing them into three lists, namely, The Union List outlining the jurisdiction for the Union Government. The State List, outlining the jurisdiction for the State Government and the Concurrent List, outlining subjects on which both the State and the Union have jurisdiction to make laws.


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