Since the unification of Germany in 1990, the former communist eastern part of the country has experienced substantial levels of population decline and outmigration. These trends are largely attributable to East-West differences in economic development (May 2007). In this article, we explore the...

Population aging is an inevitable global demographic process. Most of the literature on the consequences of demographic change focuses on the economic and societal challenges that we will face as people live longer and have fewer children. In this paper, we (a) describe key trends and...

OBJECTIVE<br> I develop and explain a new method for interpolating detailed fertility schedules from age-group data. The method allows estimation of fertility rates over a fine grid of ages, from either standard or non-standard age groups. Users can calculate detailed schedules directly from the...

Background: Epigenetic inheritance is a potentially important determinant of health in several mammals. For humans, the existing evidence is weak. We investigate whether disease exposure triggers functional epigenetic inheritance among humans by analyzing siblings who were conceived under...

The transformation of traditional childbearing patterns of early family formation to later family formation characterized recent fertility trends in Russia. These were intrinsically interwoven with fundamental changes in all aspects of life of young people in the 1990s and the 2000s. The past...

This essay represents an attempt at a re-examination of the Western scientific evidence for the existence of the divergent “Eastern European family pattern.” This evidence is challenged by almost entirely unknown contributions of Eastern European scholars, revealing the stark incompatibility...

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Humans, and many other species, suffer senescence: mortality increases and fertility declines with adult age. Some species, however, enjoy sustenance: mortality and fertility remain constant. Here we develop simple but general evolutionary-demographic models to explain the conditions that favor...

In 1940, almost two years into World War II, the book, “Agrarverfassung und Bevölkerung in Litauen und Weißrussland”(Agrarian constitution and population in Lithuania and Belarus), was published. The habilitation thesis of the young German historian Werner Conze, the book was an extensive...

The demographic transition is a universal phenomenon. All regions of the world experience a change from high levels of mortality and fertility to low levels. The onset and pace of the demographic transition vary between regions and countries because of differences in timing of events and...