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Does your social security number change when you turn 18? 

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The pattern of intergenerational transfers itself, however, is shown to change with the social security tax rate.
Racial minorities, women, the poor and the elderly tend to dislike a drastic change in the current Social Security system, and Social Security reform ought to pay attention to their concerns.
In both cases, pay-as-you-go social security enhances welfare if the growth rate is larger than the interest rate at the laissez-faire.
If anything, Social Security does the opposite.
Population ageing implies that the large pay-as-you-go social security programmes implemented in many OECD economies will run into severe financial problems.
However, our analysis does not reveal any massive shift of Federal workers into Social-Security-covered employment in order to benefit from the "tilt" in the Social Security formula.
Journal ArticleDOI
27 Apr 1994-JAMA
11 Citations
Misclassification of vital status could be introduced by the reliance on the Social Security number.
This paper shows that the optimal relation between social security benefits and retiree age depends on balancing the advantage of providing an otherwise unavailable actuarially fair annuity against the lower rate of return earned in a pay-as-you-go social security system.

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