The Galveston Plan and Social Security: a comparative analysis of two systems.
Wilson
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D000367:Age Factors; D006233:Persons with Disabilities / Q000706:statistics & numerical data; D005191:Family Characteristics; D006801:Humans; D007182:Income / Q000706:statistics & numerical data*; D017533:Marital Status / Q000706:statistics & numerical data; D012179:Retirement / Q000191:economics*; D012943:Social Security / Q000458:organization & administration*; D013660:Taxes / Q000706:statistics & numerical data*; D013781:Texas; D014481:United States