Child Mortality and Fertility: Issues in the Demographic Transition of a Migrant Population

Yorman Ben-Porath, Population and Economic Change in Developing Countries (University of Chicago Press, 1980), chap. 3, https://www.nber.org/books-and-chapters/population-and-economic-change-developing-countries/child-mortality-and-fertility-issues-demographic-transition-migrant-population.