The Song China and Abbasid Caliphate share similar political models. They both have central forms of government, and did not have tightly controlled administrations by its limited set of rulers. The Song China placed more emphasis on civil administration and accepted various candidates from different backgrounds. Similarly, the Abbasid Caliphate formed a government comprising of Arabs, Persians, Egyptians, Mesopotamians, and others.
The Abbasid Caliphate spent less time conquering other lands, and more on administering what they had. Their economy prosper through trade, and they shared more with their people. Although the Song China also de-emphasized military interventions, they were not as good financially because of too much bureaucracy