Wubei Zhi (Vol. 86)

...proper management by the authorities, they could also be eliminated. Since the border provisions are vast and the princely clan in Fenzhou is numerous, they do not fear the laws of the state and have become a burden to the locality. All supplies beyond the annual tax depend on the salt tax of Hedong. The people of the three Jin territories are exhausted. The border soldiers are currently clamoring for food and the commanders' orders are ignored. Although Pingyang is considered wealthy and prosperous, in reality, it is only Pu, Jiang, Linfen, Taiping, Xiangyang, Quwo, and Yicheng that show a degree of relative prosperity.