Tõnu Puu is a Swedish economist of Estonian descent. Puu worked as acting full professor of Economics at Uppsala University 1963-1970, where he received his Ph.D. and was appointed ordinary Professor of Economics by Royal patent at Umeå University in 1971. After emeritation in 2001, he works as senior professor at the Centre for Regional Science (CERUM). In 2014 he was awarded the Doctor Jubilaris of Uppsala University. Puu has published over 20 books and 120 scholarly articles in economics, philosophy and mathematics. Topics studied include portfolio selection, investment and production, philosophy of science (in collaboration with Sir Karl Popper), spatial economics, economics of the arts, nonlinear dynamic processes, oligopoly and business cycles.Puu was Founder and Director 1987-2001 of the Nordic Baroque Music Festival and received in that capacity the Prize for extraordinary promotion of culture, awarded by the county government. Other musical interests are playing theviola da gamba, and being a "luthier", making his own instruments.