Dietrich Vollrath, in a Sgt. Joe Friday throwback, has put up something unusual for the day: a quiet, just-the-research-ma’am post exploring the theorized impact of diversity on economic performance.  He provides examples of major studies, summarizes the findings, and points out some ways in which those findings, because of research design, might be suspect.  In … Continue reading Playing Smallball on Diversity: Dietrich Vollrath on Fractionalization