Molecular Genetics and Economics.

T he question of how traits and behaviors pass from one generation to the next has been the subject of intense interest throughout the history of science. Simple parent–child correlations are open to multiple interpretations, as parents transmit both environment and genome to their children. Until recently, genotyping—or the direct measurement of variation in an individual’s DNA sequence through biological assays—was exorbitantly expensive; distinguishing the roles of genetics and environment was the realm of behavioral genetics, in which Molecular Genetics and Economics