1. How is the mortality gap affecting Social Security progressivity? Author(s): Rutledge, Matthew S., author Publication: Chestnut Hill, MA : Center for Retirement Research at Boston College, September 2018 Subject(s): Life ExpectancySocial Security -- economicsAfrican AmericansEuropean Continental Ancestry GroupIncomeMortalitySocial ClassSocioeconomic FactorsHumansUnited States