1. Professor, Dept. of Labor and Social Security Law, Taras Shevchenko National Univ. of Kyiv, Dragomanova St., 1G, Kyiv 02068, Ukraine (corresponding author).
2. Judge, Supreme Court, Dragomanova St., 1G, Kyiv 02068, Ukraine.
3. Associate Professor, Dept. of Management, Kharkiv Institute Finance of the Kyiv National Univ. of Trade and Economics, Volodymyrska St., 60, Kyiv 02068, Ukraine.
4. Vice-rector for Scientific Work, Research Institute of Social Security, Politics, Law, Finance and Business, Heroyiv Nebesnoyi Sotni St., 2, Kyiv 02068, Ukraine.
5. Assistant, Dept. of Labor and Social Security Law, Taras Shevchenko National Univ. of Kyiv, Vladimirskaya St., 60, Kyiv 01030, Ukraine.