What is the purpose of the additionality principle in cohesion policy?

The additionality principle in cohesion policy is primarily concerned with ensuring that EU funding supplements and does not substitute existing national or regional investments. This principle is crucial because it aims to maximize the effectiveness of the financial support provided by the EU while encouraging member states to maintain or elevate their own investment efforts. By adhering to this principle, cohesion policy seeks to foster genuine development and growth in regions by making sure that the financial support is used to catalyze new investments rather than replace or diminish local or national funding efforts. This mechanism is essential for promoting sustainable development and ensuring that EU funds are leveraged to create additional economic activities and benefits rather than merely filling gaps left by decreased local funding.