Fischer reviews the two-volume work Blackness in Latin America and the Caribbean: social dynamics and cultural transformations, by Norman E. Whitten Jr. and Arlene Torres>
The African heritage hypothesis posits that the substantial African ancestry of Puerto Ricans explains why this group is less segregated from African-Americans than non-Hispanic whites. This pattern is unlike that of other Hispanic groups, who have been found to be highly segregated from African-Americans but modestly segregated from whites. The research presented here shows that Dominicans, another Hispanic group with substantial African ancestry, are also less segregated from African-Americans than whites. Dominicans, therefore, also appear to be conforming to the African heritage thesis by residing in neighborhoods with greater proximity to African-Americans than whites.