Frontmatter -- Contents -- Preface -- 1. Introduction: Of Ruling Classes and Underclasses: Th e Laws of Social Mobility -- PART I. Social Mobility by Time and Place -- 2. Sweden: Mobility Achieved? -- 3. The United States: Land of Opportunity -- 4. Medieval England: Mobility in the Feudal Age --...

This paper explains how surname distributions can be used as a way to measure rates of social mobility in contemporary and historical societies. This allows for estimates of social mobility rates for any population for which we know just two facts: the distribution of surnames overall, and the...