1. Presence of the evil eye belief, coded on an ordinal scale from incontrovertibly absent (1) to incontrovertibly present (8). The binary measure was derived by lumping categories (1)-(4) and (5)-(8) into two: absent and present;Original source: Roberts,1976
2. dual stratification into a hereditary aristocracy and a lower class of ordinary commoners or freemen (4); complex stratification into social classes correlated in large measure with extensive differentiation of occupational statuses (5). Class stratification dummy is equal to 0 for the first category and 1 otherwise;Original source,1967