John Charles "Jack" Caldwell AO (8 December 1928 – 12 March 2016) was an Australian demographer.
In 1991 the Health Transition Review was published from the Australian National University until 1997 with Caldwell as its editor.
An international conference, The Continuing Demographic Transition John C Caldwell Seminar was held in his honour at the Australian National University.
[3] According to the Encyclopedia of Population, Caldwell's work on demographic and health transition is "cited almost de rigueur by those in these fields".
He is particularly noted for his "wealth flows" theory, which relates demographic transition to changes in intergenerational transfers within the family.