@article {5730, title = {The Characteristics of Social Security Beneficiaries Who Claim Benefits at the Early Entitlement Age}, year = {2008}, institution = {AARP Public Policy Institute}, keywords = {Retirement Planning and Satisfaction, Social Security}, url = {http://assets.aarp.org/rgcenter/econ/2008_19_beneficiaries.pdf}, author = {Xiaoyan Li and Michael D Hurd and Loughran, David} }