Fertility rates vary considerably across and within societies, and over
time. Over the last three decades, social demographers have made
remarkable progress in documenting these axes of variation, but
theoretical models to explain family change and variation have lagged
behind. At the same time, our sister disciplines-from cultural
anthropology to social psychology to cognitive science and beyond-have
made dramatic strides in understanding how social action works, and how
bodies, brains, cultural contexts, and structural conditions are
coordinated in that process. Understanding Family Change and Variation:
Toward a Theory of Conjunctural Action argues that social demography
must be reintegrated into the core of theory and research about the
processes and mechanisms of social action, and proposes a framework
through which that reintegration can occur. This framework posits that
material and schematic structures profoundly shape the occurrence,
frequency, and context of the vital events that constitute the object of
social demography. Fertility and family behaviors are best understood as
a function not just of individual traits, but of the structured contexts
in which behavior occurs. This approach upends many assumptions in
social demography, encouraging demographers to embrace the endogeneity
of social life and to move beyond fruitless debates of structure versus
culture, of agency versus structure, or of biology versus society.