@article{Sparks_21_2,
author = {Sparks, Corey},
title={{An application of the variable-r method to subpopulation growth rates in a 19th century agricultural population}},
journal = {Demographic Research},
volume = {21},
number = {2},
pages = {23--64},
doi = {10.4054/DemRes.2009.21.2},
year = {2009},
abstract = {This paper presents an analysis of the differential growth rates of the farming and non-farming segments of a rural Scottish community during the 19th and early 20th centuries using the variable-r method allowing for net migration. Using this method, I find that the farming population of Orkney, Scotland, showed less variability in their reproduction and growth rates than the non-farming population during a period of net population decline. I conclude by suggesting that the variable-r method can be used in general cases where the relative growth of subpopulations or subpopulation reproduction is of interest.},
URL = {https://www.demographic-research.org/volumes/vol21/2/},
eprint = {https://www.demographic-research.org/volumes/vol21/2/21-2.pdf}
}