Accumulation of pension rights under the progressive solidarity part of social pension contributions: its impact on the pension system equilibrium and leveling-up of income disparities

The article presents results of the imitation calculations of the total value and distribution of social pension contributions under the progressive solidarity part of social pension contributions and cancellation of the upper limit of earnings subject to social taxation. The obtained results prove that these patterns provide increase in the social pension revenues, rise in the size of pensions and earnings replacement rate together with equilibrium and stability of the pension system. For each version of the insurance contribution scale and the division of contributions into solidarity and individual parts there is calculated the potential total amount of insurance contributions, the projected value of pension expenditures and pensions for 10% income groups, as well as income differences.