Mainstream economists claim that economics is an objective and empirically tested science – contrary to the humanities and soft social sciences. According to this view, economics is beyond the influence of ideology. It represents the rational way of analysing economic welfare – not influenced by political consideration. Therefore, it is explicitly stated within the Treaty of Lisbon that the board of directors of the European Central Bank must not take any direct instructions from the European Council to secure objectivity in the European monetary policy. Unfortunately, economic theory is not neutral. It cannot be separated from the vision and the fundamental assumptions which lay behind the economic model employed when policies are decided upon. The so-called general equilibrium model is firmly relying on market theory and ordo-/neoliberal ideology.