The aim of the project is to test how the EU-SPI could be used to inform and improve policy making in relation to policies supported by cohesion policy. The project also aims to identify best practices of its use and to facilitate the exchange of knowledge and in the assessment of the EU-SPI in the broader context of the beyond GDP initiative and so to identify aspects to be improved and inform the EU-SPI developers by providing insights on how to improve the next editions of the index.