@article {4399,
	title = {Can we Trust Social Capital?},
	journal = {Journal of Economic Literature},
	volume = {40},
	year = {2002},
	pages = {139{\textendash}154},
	url = {https://www.aeaweb.org/articles?id=10.1257/0022051027001},
	author = {Sobel, Joel}
}
