Social security in theory and practice (II) facts and political theories - Mulligan, Casey B.; Sala-i-Martin, Xavier (Cambridge National Bureau of Economic Research, 1999)
Keywords: Social security -- Econometric models; Retirement -- Econometric models; Aged -- Economic conditions -- Econometric models; Pensions -- Econometric models; Aged -- Political activity -- Econometric models; Old age pensions -- Econometric models