Erzsébet Bukodi is an Associate Professor in Quantitative Social Policy and Professorial Fellow of Nuffield College. She is also a Senior Research Fellow at the Institute for New Economic Thinking, The Oxford Martin School. John H. Goldthorpe is an Emeritus Fellow of Nuffield College Oxford, a Fellow of the British Academy, a Member of the Royal Swedish Academy of Sciences, and an Honorary Fellow of the Royal Statistical Society. He has written extensively on social class and social mobility since the 1960s.