In 1964 graduated from Polotsk agricultural technical school, in 1974 ended BSINE of B.B. of Kuibyshev, in 1988 graduated from the Higher party school at KPB Central Committee, in 1997 ended postgraduate study at BELRI of economic problems of agro-industrial complex.
Stepan Polonik worked as the economist of state farm, the chief accountant of collective farm, the chief of planned finance department in Smolevichsky district executive committee, the head of department agro-industrial complex of the Minsk area, the vice-chairman of the regional agrarian industry of the Minsk region.
He was appointed the deputy minister of economy the Republic of Belarus, the chief of economic management of the Office of Council of ministers the Republic of Belarus.
In 2000 he headed Research Institute of Economics of the Ministry of Economics the Republic of Belarus.
Doctor of Economics (2004).
The author of 95 published works.
