@article {1462809,
	title = {Work time and market integration in the original affluent society},
	journal = {PNAS},
	year = {2019},
	pages = {1-6},
	url = {https://www.pnas.org/content/early/2019/10/08/1906196116},
	author = {Bhui, R and Chudek, M and Henrich, J}
}
