@article{Moffitt2003,
author = {Moffitt, R.},
title= {Causal analysis in population research: an economist’s perspective},
year = {2003},
doi = {10.1111/j.1728-4457.2003.00448.x},
journal = {Population and Development Review},
volume = {29},
number = {3},
pages = {448--458},
}