Mateev was born in the family of a railway official. He graduated from the
Sofia Theological Seminary in 1939 and the
Sofia University in 1943 from the Faculty of Law. Since 1939 he has been a member of the
Workers' Youth League and became a participant in the underground communist movement. After the
September 1944 coup d'état, Mateev began working as a journalist and soon entered the government of Bulgaria. He was chairman of the State Planning Commission in 1952, a minister in 1963–1966, a member of the State Council of the People's Republic in 1974–1981 . From 1953 to 1959 he served as chairman of the Central Statistical Bureau, from 1962 to 1966 he was a member of the Central Committee of the
Bulgarian Communist Party. From 1964 to 1972 he was chairman of the Presidium of the Higher Attestation Commission under the Ministerial Council. From 1972 to 1981 Mateev Chairman of the council for the reproduction of material resources under the State Council. From 1968 to 1971 he was Chairman of the
United Nations Economic Commission for Europe. In 1950, Mateev received the title of professor, and in 1967 an academician of the
Bulgarian Academy of Sciences. He became an academician of the
Academy of Sciences of the Soviet Union in 1976, after the collapse of the USSR he retained this post already in the
Russian Academy of Sciences. He was elected as a deputy to the 4th and 7th People's Assemblies of Bulgaria. Mateev died on 4 June 1994, after a long illness. In his honor, an auditorium in the
University of National and World Economy bears his name. == Works ==