The RCI has always shown a remarkable gap between capital/metropolitan regions and the rest of the country.
The question is: are these gaps between the capital and the rest of the country increasing or can we find an indication of catching-up?

The Regional Competitiveness Index (RCI) allows regions to monitor and assess their development over time and compare with other regions

Cohesion policy is the EU’s main investment policy, providing funding equivalent to 8.5% of government capital investment in the EU, a figure which rises to 41% for the EU 13 and to over 50% for a number of countries.

This figure compares the allocations of Cohesion Policy per Member State (available on this open data platform) to public investment (Gross fixed capital formation by general government). This is usually referred as total public investment.

Eurostat series:
Title: Government revenue, expenditure and main aggregates
Code: gov_10a_main
See also metadata https://ec.europa.eu/eurostat/cache/metadata/en/gov_10a_main_esms.htm for details concerning national accounting conventions.

Cohesion policy is the EU’s main investment policy, providing funding equivalent to 8.5% of government capital investment in the EU, a figure which rises to 41% for the EU 13 and to over 50% for a number of countries.

This figure compares the allocations of Cohesion Policy per Member State to public investment (Gross fixed capital formation by general government).
The source for the allocations is the cohesion open data platform and for public investment it is Eurostat and ECFIN AMECO.

Based on analysis in the recent 8th Cohesion Report, this page allows you to explore interactive maps and charts on past and future regional demographic trends.

The Regional Competitiveness Index (RCI) has been measuring the major factors of competitiveness over the past ten years for all the NUTS-2 level regions across the European Union. The Index measures with more than 70 comparable indicators the ability of a region to offer an attractive and sustainable environment for firms and residents to live and work.

COVID-19 has had varied direct impacts in different EU regions. Explore a selection of interactive maps and charts presenting the regional pattern of excess deaths in 2020-2021.

Revealed: the historic pattern of EU investments in your country and region (NUTS-2)

Net migration in EU regions between 2001 and 2011

This is the April 2018 (archived) version of the master "Historic EU payments regionalised and modelled" dataset.
The most recent updated version is found here: https://cohesiondata.ec.europa.eu/EU-Level/Historic-EU-payments-regionalised-and-modelled/tc55-7ysv