"This includes Arab-Kurdish relations, particularly as they relate to disputed internal boundaries, revenue-sharing, legislation related to hydrocarbons, the federal framework and the constitutional review process."

VOA: standard.2010.08.04

The federal-state revenue sharing via the credit was the way things worked for decades.

FORBES: States Face $3 Billion Estate Tax Windfall If We Fall Off Fiscal Cliff

Taking an average of the revenue-sharing formulae used in other big federal countries, it would receive 32%, points out Luis Secco, an economic consultant.

ECONOMIST: The big fight over fiscal reform