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The institution of consanguineous marriage-a marriage contracted between close biological relatives-has been a basic building block of many societies in different parts of the world. This paper argues that the practice of consanguinity is closely related to the practice of dowry, and that both arise in response to an agency problem between the families of a bride and a groom. When marriage contracts are incomplete, dowries transfer control rights to the party with the highest incentives to invest in a marriage. When these transactions are costly however, consanguinity can be a more appropriate response since it directly reduces the agency cost. The paper's model predicts that dowry transfers are less likely to be observed in consanguineous unions. It also emphasizes the effect of credit constraints on the relative prevalence of dowry payment and consanguinity. An empirical analysis using data from Bangladesh delivers robust results consistent with the predictions of the model.
The institution of consanguineous marriage - a marriage contracted between close biological relatives - has been a basic building block of many societies in different parts of the world. This paper argues that the practice of consanguinity is closely related to the practice of dowry, and that both arise in response to an agency problem between the families of a bride and a groom. When marriage contracts are incomplete, dowries transfer control rights to the party with the highest incentives to invest in a marriage. When these transactions are costly however, consanguinity can be a more appropriate response since it directly reduces the agency cost. The paper's model predicts that dowry transfers are less likely to be observed in consanguineous unions. It also emphasizes the effect of credit constraints on the relative prevalence of dowry payment and consanguinity. An empirical analysis using data from Bangladesh delivers robust results consistent with the predictions of the model.
An essential guide to this major contemporary issue, Consanguinity in Context is a uniquely comprehensive account of intra-familial marriage. Detailed information on past and present religious, social and legal practices and prohibitions is presented as a backdrop to the preferences and beliefs of the 1100+ million people in consanguineous unions. Chapters on population genetics, and the role of consanguinity in reproductive behaviour and genetic variation, set the scene for critical analyses of the influence of consanguinity on health in the early years of life. The discussion on consanguinity and disorders of adulthood is the first review of its kind and is particularly relevant given the ageing of the global population. Incest is treated as a separate issue, with historical and present-day examples examined. The final three chapters deal in detail with practical issues, including genetic testing, education and counselling, national and international legislation and imperatives, and the future of consanguineous marriage worldwide.
Like many gentlemen of his time, Charles Darwin married his first cousin. In fact, marriages between close relatives were commonplace in nineteenth-century England, and Adam Kuper argues that they played a crucial role in the rise of the bourgeoisie. Incest and Influence shows us just how the political networks of the eighteenth-century aristocracy were succeeded by hundreds of in-married bourgeois clans—in finance and industry, in local and national politics, in the church, and in intellectual life. In a richly detailed narrative, Kuper deploys his expertise as an anthropologist to analyze kin marriages among the Darwins and Wedgwoods, in Quaker and Jewish banking families, and in the Clapham Sect and their descendants over four generations, ending with a revealing account of the Bloomsbury Group, the most eccentric product of English bourgeois endogamy. These marriage strategies were the staple of novels, and contemporaries were obsessed with them. But there were concerns. Ideas about incest were in flux as theological doctrines were challenged. For forty years Victorian parliaments debated whether a man could marry his deceased wife’s sister. Cousin marriage troubled scientists, including Charles Darwin and his cousin Francis Galton, provoking revolutionary ideas about breeding and heredity. This groundbreaking study brings out the connection between private lives, public fortunes, and the history of imperial Britain.
This volume takes its subtitle from the theme of the ASHB meeting for 1994 ?Genes, Ethnicity and Ageing?. The first paper is the annual conference lecture as delivered by the Honourable Fred Chaney, formerly Minister for Aboriginal Affairs in the Federal Government of Australia. It considers some of the difficulties in delivering government services to indigenous peoples. Jim Chisholm puts an evolutionary perspective on some aspects of human behaviour, life history and Darwinian approaches to medicine. Carol Bower reviews the value of the Western Australian Birth Defects Registry and the contributions of registries to improved health care. Alexandra Brewis and Gokarna Regmi document determinants of fertility in a Pacific Island population. There are two papers from a special symposium on Ageing and the Aged held within the meeting: George Broe and Helen Creasey consider some of the social issues associated with an ageing society, and Alan Hipkiss and colleagues take a biochemist's look at possibilities for extending the human life cycle.There are two additional papers. One by Alan Bittles documents consanguinity in the Middle East. The second, by Tsunehiko Hanihara and Hajime Ishida describes the results of their studies of Australian Aboriginals and neighbouring populations.?Understanding Ageing?, by Robin Holliday, Cambridge University Press is reviewed by Anne Mitchell.
In 1951, the geneticist Luigi Luca Cavalli-Sforza was teaching in Parma when a student--a priest named Antonio Moroni--told him about rich church records of demography and marriages between relatives. After convincing the Church to open its records, Cavalli-Sforza, Moroni, and Gianna Zei embarked on a landmark study that would last fifty years and cover all of Italy. This book assembles and analyzes the team's research for the first time. Using blood testing as well as church records, the team investigated the frequency of consanguineous marriages and its use for estimating inbreeding and studying the relations between inbreeding and drift. They tested the importance of random genetic drift by studying population structure through demography of the last three centuries, using it to predict the spatial variation of frequencies of genetic markers. The authors find that drift-related genetic variation, including its stabilization by migration, is best predicted by computer simulation. They also analyze the usefulness and limits of the concept of deme for defining Mendelian populations. The genetic effect of consanguineous marriage on recessive genetic diseases and for the detection of dominance in metric characters are also studied. Ultimately bringing together the many strands of their massive project, Cavalli-Sforza, Moroni, and Zei are able to map genetic drift in all of Italy's approximately 8,000 communes and to demonstrate the relationship between each locality's drift and various ecological and demographic factors. In terms of both methods and findings, their accomplishment is tremendously important for understanding human social structure and the genetic effects of drift and inbreeding.
This book discusses the concepts of migration, race, and ethnicity and demonstrates how these can be applied in scientific research, policy making, health service planning, and health promotion. Extensive examples are used to demonstrate the application of the theory.
The challenges for young people making the transition to adulthood are greater today than ever before. Globalization, with its power to reach across national boundaries and into the smallest communities, carries with it the transformative power of new markets and new technology. At the same time, globalization brings with it new ideas and lifestyles that can conflict with traditional norms and values. And while the economic benefits are potentially enormous, the actual course of globalization has not been without its critics who charge that, to date, the gains have been very unevenly distributed, generating a new set of problems associated with rising inequality and social polarization. Regardless of how the globalization debate is resolved, it is clear that as broad global forces transform the world in which the next generation will live and work, the choices that today's young people make or others make on their behalf will facilitate or constrain their success as adults. Traditional expectations regarding future employment prospects and life experiences are no longer valid. Growing Up Global examines how the transition to adulthood is changing in developing countries, and what the implications of these changes might be for those responsible for designing youth policies and programs, in particular, those affecting adolescent reproductive health. The report sets forth a framework that identifies criteria for successful transitions in the context of contemporary global changes for five key adult roles: adult worker, citizen and community participant, spouse, parent, and household manager.