Prof Satoshi Araki has published an article "Education, Skills, and Intergenerational Inequality in Status Attainment: Causal Mediation Analysis and Typology of 23 OECD Countries" in the British Journal of Sociology (https://doi.org/10.1111/1468-4446.70139). In this paper, Prof Araki examines the structure of intergenerational transmission of socioeconomic status across 23 countries, with a newly proposed framework - the OESD quadrangle - that incorporates social origin (family background), education, skills, and destination (status attainment). Using data from the OECD Survey of Adult Skills (PIAAC) and applying causal mediation analysis, the study shows (1) education significantly mediates the association between social origin and destination in all countries; (2) adult skills also play a mediating role, net of education; and (3) the magnitude of skills varies cross-nationally, accounting for 4% (Sweden) to 25% (USA) of the total origin effect estimates. This suggests that fostering cognitive skills among the disadvantaged may help mitigate intergenerational inequality, although its impact differs across societies. By linking these cross-national patterns to key sociological concepts such as meritocracy and credentialism, Prof Araki proposes a typology of societies from a comparative perspective.