American fertility and industrial restructuring: a possible link.

Despite the fact that economic and demographic factors conventionally are considered to be integrally related, researchers have overlooked recent changes in the structure of the American economy that may have affected fertility in the US. This article seeks to raise questions and explores the possibility that recent processes of industrial restructuring have created new employment patterns and socioeconomic conditions which have influenced American fertility positively. Specifically, conditions of underemployment and unemployment, generated by the service and manufacturing sectors, may be conducive to increased fertility.

City-size distributions and the world urban system in the twentieth century.

"In this paper we trace and interpret changes in the geographical pattern and city-size distribution of the world's largest cities in the twentieth century. Since 1900 the geographical distribution of these cities has become increasingly dispersed; their city-size distribution by rank was nearly linear in 1900 and 1940, and convex in 1980. We interpret the convex distribution which emerged following World War 2 as reflecting an economically integrated but politically and demographically partitioned global urban system.