[6] His father, Gottfried Ashaley Nikoi was a civil servant while his mother, Agnes Betty Oboshie Quao was a teacher and a textiles trader.
[6] He proceeded to Harvard University as a Fellow from 1953 to 1955 for his master's degree in Public Administration and a doctorate in Political Economy and Government.
[6] Amon Nikoi's Ph.D. dissertation was titled, "Indirect rule and government in Gold Coast Colony 1844-1954; a study in the history, ecology and politics of administration in a changing society.
[5][6] The Ghanaian government selected and confirmed him as the new governor and chairman of the board of directors of the Bank of Ghana in March 1973 until his forced retirement in June 1977 by the military government, National Redemption Council (NRC) led by Army General Ignatius Kutu Acheampong.
[5][6][9] When constitutional rule returned in 1979, the Third Republican government of the Hilla Limann-led People's National Party (PNP) made him Minister of Finance and Economic Planning and later, a presidential advisor.
[5][6] His funeral service was held at the Accra Ridge Church where he was a congregant and his remains were buried at the La Public Cemetery.