“…In terms of the latter, an interdisciplinary community of political scientists, sociologists, and legal scholars have—for over two decades now—examined European countries by developing complex, multi‐dimensional indices capable of differentiating across types of policies, target groups, and instruments, to mention a few (Goodman, ; Jeffers, Honohan, & Bauböck, ; Koopmans, Michalowski, & Waibel, ; Koopmans, Statham, Giugni, & Passy, ; Waldrauch & Hofinger, ). Recently, Europeanists have engaged in extensive debates over conceptualization, specificity, and measurement leading to a set of rigorous standards for differentiating and operationalizing indices (Goodman, ; Helbling, ).…”