This article examines mother-in-law avoidance, theorizing it is "a device for distinguishing the son-in-law/mother-in-law relationship from the husband-wife relationship in societies where these relationships tend to be similar as far as their economic aspect is concerned” (71). The conditions that may give rise to economic interaction between son-in-law and mother-in-law, such as matrilocal residence, are also discussed.

This study re-examines the hypothesis of Sapir (1916) regarding the relationship between levirate and sororate and kinship terminology. The author critiques Murdock’s (1947) work on this topic and performs his own analysis for four hypotheses. Results suggest that “the levirate and sororate are significantly correlated to the occurrence of bifurcate merging terminology and step-bifurcate collateral terminology” (352). Exceptions to this finding are also discussed.