Social security, social welfare and the aging population.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D003710:Demography; D004467:Economics; D004493:Education; D005376:Financial Management; D005380:Financing, Government; D005843:Geography; D008962:Models, Theoretical; D011153:Population; D011154:Population Characteristics; D012106:Research; D012111:Residence Characteristics; D012943:Social Security; D012946:Social Welfare
Adult; Age Factors; Aged; Community; Demographic Factors; Economic Development; Economic Factors; Education; Financial Activities; Financing, Government; Geographic Factors; Models, Theoretical; Population; Population Characteristics; Research Methodology; Residence Characteristics; Social Security; Social Welfare; Spatial Distribution; Theoretical Studies; Youth