Data Sources
The RIL is constructed using data from the European Values Study (EVS) (2008 and 2017 waves), aggregated at the NUTS-2 regional level.
Measurement Approach
Unlike traditional approaches based on standard deviation, the RIL uses a measure of ordinal dispersion (1 − l²), which is more appropriate for Likert-scale survey data.
This method captures how far observed responses are from maximum dispersion, providing a normalized measure between 0 and 1.
Construction of the Index
Horizontal Dimension (14 variables)
Measures tolerance for behaviors such as:
Tax evasion, bribery, and rule-breaking
Personal and moral choices (e.g., divorce, abortion, lifestyle behaviors)
Vertical Dimension (4 variables)
Measures attitudes toward governance systems, including:
Strong leadership without democratic constraints
Technocratic governance
Military rule
Democratic systems
Each dimension is computed as the average dispersion across relevant survey items, and the overall index is derived from their mean.
Coverage
European regions at the NUTS-2 level
Includes both Western and Eastern Europe
Some regions rely on 2008 data due to availability constraints
Validation
The RIL has been validated through:
Comparison with existing national indices
Correlation analysis with cultural and socio-economic variables
Empirical applications in public health behavior
Results show that the RIL captures a distinct cultural dimension, not reducible to social capital, economic development, or political polarization.