John von Neumann (Budapest, 1903-Washington D.C., 1957) was an exceptional polymath, who made fundamental contributions to mathematical logics, functional analysis, quantum mechanics, game theory, computer architecture and automata theory. In this brief paper, I shall review the game-theoretic...

In Hungary, initial pensions are indexed to average net wages, reported by official earnings statistics (ES), which does not cover the economy as whole. However, there is alternative statistical source on labour income, the national accounts (NA), intended to cover the total economy. The latter...