Comparing regression methods under multicollinearity in SDG inequality analysis

Understanding the statistical interdependencies among Sustainable Development Goal (SDG) indicators poses significant methodological challenges, particularly in the presence of multicollinearity and limited cross-country observations. This study provides a comparative assessment of regression techniques for analysing income-related inequality (SDG indicator 10.1.1) in EU Member States, using selected indicators related to health (Goal 3), education (Goal 4) and economic conditions (Goal 8) as ex