Villanueva was born on October 6, 1946, in Bocaue, Bulacan, to parents Joaquin Villanueva and Maria Cruz. Joaquin Villanueva was a former Olympic sprinter who represented the Philippines in the Far Eastern Games for four consecutive years in 1920s.
Education In 1969, Villanueva graduated with a degree in commerce, majoring in economics, from the Philippine College of Commerce (PCC), since renamed the
Polytechnic University of the Philippines. He was immersed in both student and labor movements in the 1970s, joining the progressive segments of society which opposed Marcos' dictatorship. Villanueva also took up law at the
University of the Philippines College of Law but was already into so much activism that he never had time to take the
bar examination. During Martial law, he fought local landgrabbers in Bulacan and ended up being jailed twice for his political beliefs and participation in various mass actions. He worked as a full-time faculty member in the Economics and Finance Department of PCC until 1972. He then worked as the export manager of Maran Export Industries in 1973 and from 1976 to 1977, he was the general manager of the Agape Trading Co. He returned to PCC, now renamed, in 1978 as a part-time professor. == Religious ministry ==