The article states:  “Zangana hasn’t received his salary for the past two months, making it even harder for him to pay the bills, including the rent for his small house in the city of Erbil. Iraqi Kurdistan gained fame in the past decade as a booming region, relatively peaceful, with fast-paced development made possible by oil wealth. Since IS’ invasion in Iraq, however, the economy has slowed and lots of expats have returned to their home countries, making it hard for locals such as Zangana to gain an extra income.”

41% corruption index and the inability to administer a region also affect the ability of a                  “functioning government” to manage its territory.

http://www.al-monitor.com/pulse/originals/2015/08/kurdistan-peshmerga-fight-lack-money.html