A growing wealth of research in social science, especially in quantitative studies, has shown the extent to which ethno-racial discrimination is still pervasive in European societies. The persistence of ethno-racial discrimination, or even its aggravation, is puzzling since antidiscrimination policies have been implemented on the impetus of the European equality directives in 2000 and European societies have developed a strategy of colorblindness to curtail the expansion of racism. However, all ethnic groups are not targeted to the same level by ethno-racial discrimination, and the discriminatory consequences of stereotypes and prejudices may vary across countries. Discrimination itself is not a self-evident social phenomenon to observe and to account for and there is an ongoing methodological debate on the measurements and the consequence they have on the understanding and assessment of it. This panel brings together papers that discuss precisely the methods and what they tell about the evolution and substance of ethno-racial discrimination.