@article{publication-422,
	author={Gottardi, Piero and K{\"u}bler, Felix},
	doi={10.1016/j.jet.2010.10.014},
	issn={0022-0531},
	journal={Journal of Economic Theory},
	number=3,
	pages={1078-1106},
	publisher={Elsevier},
	title={Social security and risk sharing},
	volume=146,
	year=2011,
}