Abstract
This work aims to investigate, in the light of recent developments in the process of European integration, the impact of the European (macro)economic constitution on internal decision-making processes concerning the adoption of public finance choices. Once we have described our legal framework on protecting of the financial interests of the community and their close relationship with the EU financial constraints, the work highlights how the supranational protection of financial stability contributes together with them (as a function of the limit and incentive for voluntary cooperation between Member States) to the pursuit by the governing powers of the objectives of the Treaties according to the peculiar socio-economic model outlined in them. So, the European (macro)economic constitution plays a role as a disciplinary factor in internal political and administrative processes in accordance with the effective sovereignty of citizens.