Kohler, Hans-Peter; Rodgers, Joseph L.; Christensen, Kaare - In: Population and Development Review 25 (1999) 2, pp. 253-288
This article investigates the fertility of Danish twins born during the periods 1870-1910 and 1953-64 in order to pursue two central questions for understanding human reproduction: Do genetic dispositions influence fertility and fertility-related behavior? Does the relevance of the "nature...