There is long-standing debate on how population growth affects national economies. A new report from Population Matters examines the history of this debate and synthesizes current research on the topic. The authors, led by Harvard economist David Bloom, conclude that population age structure, more than size or growth per se, affects economic development, and that reducing high fertility can create opportunities for economic growth if the right kinds of educational, health, and labor-market policies are in place. The report also examines specific regions of the world and how their differing policy environments have affected the relationship between population change and economic development.

The Politics of Numbers is the first major study of the social and political forces behind the nation's statistics. In more than a dozen essays, its editors and authors look at the controversies and choices embodied in key decisions about how we count—in measuring the state of the economy, for example, or enumerating ethnic groups. They also examine the implications of an expanding system of official data collection, of new computer technology, and of the shift of information resources into the private sector. A Volume in the Russell Sage Foundation Census Series

MtDNA.

From tax and household registers, law codes, and other primary sources, as well as recent Japanese sources, William Wayne Farris has developed the first systematic, scientific analysis of early Japanese population, including the role of disease in economic development. This work provides a comprehensive study of land clearance, agricultural technology, and rural settlement. The function and nature of ritsuryō institutions are reinterpreted within the revised demographic and economic setting. Farris’s text is illustrated with maps, population pyramids for five localities, and photographs and translations of portions of tax and household registers, which throw further light on the demography and economy of Japan in the seventh, eighth, and ninth centuries.