He is loved for, among other things, saying that: "Blacks are the worst-performing ethnic group on SAT's. Blacks earn less than whites. They are still just not doing well, period.'' And he also is willing to discuss openly the matter of genetic inferiority of blacks: "''Blacks and whites are both to blame. As soon as you say something like, 'Well, could the black-white test-score gap be genetics?' everybody gets tensed up. But why shouldn't that be on the table?'' " He also makes it easier for white colleagues to be racist: "Fryer well appreciates that he can raise questions that most white scholars wouldn't dare. His collaborators, most of whom are white, appreciate this, too. ''Absolutely, there's an insulation effect,'' says the Harvard economist Edward L. Glaeser. ''There's no question that working with Roland is somewhat liberating.'' " He also believes that black students would do better if they associate less with other blacks.