This monograph is the first study of the acquisition of Swahili as a first language. It focuses on the acquisition of inflectional affixes, with a particular emphasis on subject agreement and tense. Other inflectional affixes are also investigated, including object agreement and mood. The study surveys the adult dialect in question, Nairobi Swahili, discussing social, phonological, morphological and syntactic properties. Data, analyses and copious examples are presented of the naturalistic speech of four Swahili speaking children. The data are tested against six influential theories of child language, and the results show that processing and metrical theories of telegraphic speech fail to account for the observed patterns, while grammatical theories of child language fair significantly better. The data and analyses presented in this book are indispensable for linguists and psychologists interested in the acquisition of inflectional material and other cross-linguistic properties of child language.

Extending the tradition of this series, which has become a standard reference work in language acquisition, this volume contains chapters on seven more languages, including a section on ergative languages. Languages in this volume include: Georgian; Greenlandic; K'iche Mayan; Warlpiri; Mandarin; Scandinavian and Sesotho.

This groundbreaking work, with its unique anthropological approach, sheds new light on a central conundrum surrounding AIDS in Africa. Robert J. Thornton explores why HIV prevalence fell during the 1990s in Uganda despite that country's having one of Africa's highest fertility rates, while during the same period HIV prevalence rose in South Africa, the country with Africa's lowest fertility rate. Thornton finds that culturally and socially determined differences in the structure of sexual networks—rather than changes in individual behavior—were responsible for these radical differences in HIV prevalence. Incorporating such factors as property, mobility, social status, and political authority into our understanding of AIDS transmission, Thornton's analysis also suggests new avenues for fighting the disease worldwide.