@article {NBERw14540,
	title = {Labor Supply Responses to Marginal Social Security Benefits: Evidence from Discontinuities},
	number = {14540},
	year = {2008},
	institution = {National Bureau of Economic Research},
	address = {Cambridge, MA},
	abstract = {A key question for Social Security reform is whether workers currently perceive the link on the margin between the Social Security taxes they pay and the Social Security benefits they will receive. We estimate the effects of the marginal Social Security benefits that accrue with additional earnings on three measures of labor supply: retirement, hours, and labor earnings. We develop a new approach to identifying these incentive effects by exploiting five provisions in the Social Security benefit rules that generate discontinuities in marginal benefits or non-linearities in marginal benefits that converge to discontinuities as uncertainty about the future is resolved. We find clear evidence that individuals approaching retirement (age 52 and older) respond to the Social Security tax-benefit link on the extensive margin of their labor supply decisions: we estimate that a 10 percent increase in the net-of-tax share reduces the two-year retirement hazard by a statistically significant 2.1 percentage points from a base rate of 15 percent. The evidence with regards to labor supply responses on the intensive margin is more mixed: we estimate that the elasticity of hours with respect to the net-of-tax share is 0.41 and statistically significant, but we do not find a statistically significant earnings elasticity.},
	keywords = {Labor, Labor Supply, Social Security},
	doi = {10.3386/w14540},
	author = {Jeffrey B Liebman and Erzo F. P. Luttmer and Seif, David G}
}
@inbook {5175,
	title = {Guaranteed Income:  SSI and the Well-Being of the Elderly Poor},
	booktitle = {The Distributional Aspects of Social Security and Social Security Reform},
	year = {2002},
	note = {RDA ProCite field 8 : eds.},
	publisher = {University of Chicago Press},
	organization = {University of Chicago Press},
	address = {Chicago},
	abstract = {It is a well known fact that over the past 40 years Social Security has made a major contribution to reducing the poverty levels of elderly persons. At the same time people are beginning to realize the decline in labor force participation of the near-elderly.  This paper examines these two topics, as well as, the elderly population that is not being provided sufficient Social Security compensation.  Within this context the authors discuss possible changes in Supplemental Security Income, the elimination of the asset test, increasing unearned income disregards, raising guarantees to the poverty line, using social security income, costs of changes, and the effects on poverty.},
	keywords = {Demographics, Methodology, Public Policy, Social Security},
	url = {https://www.nber.org/papers/w7574},
	author = {Kathleen McGarry},
	editor = {Feldstein, Martin and Jeffrey B Liebman}
}
