Dr. habil.oec. (demogr.) Pēteris Zvidriņš is a Professor of University of Latvia, full member of the Latvian Academy of Sciences (1992), Member of the European Academy of Sciences and Arts (2006), Member of the International Union for Scientific Studies of Population (1979) and the European Association for Population Studies (1987). In 1996, was awarded the prize of Kārlis Balodis, and in 2004, the prize of Marģers Skujenieks, Latvian Academy of Sciences. He is the author of about 400 scientific works.