Original: From 1987 to 1995, he was Leader of the People's Alliance; during this time, he served as Minister of Finance from 1988 to 1991 and as a Member of Althing for Reykjanes from 1991 to 1996.
Simplified: He was a professor at the University of Iceland for political science, served as a Member of the Althing, and was the Minister of Finance (1988 1991).