@article{borgerhoffmulder2011wealth,
  author = {Mulder, Monique Borgerhoff and Beheim, Bret A.},
  title = {Understanding the nature of wealth and its effects on human fitness},
  journal = {Philosophical Transactions of the Royal Society B: Biological Sciences},
  year = {2011},
  volume = {366},
  number = {1563},
  pages = {344--356},
  doi = {10.1098/rstb.2010.0231}
}