Is there a social security tax wedge?
A Beveridgean pension scheme invariably reduces the marginal return to labour, and will thus discourage labour. A Bismarckian scheme can do so only if it is not actuarially fair, or in the presence of credit rationing. In any case, the same pension contribution will discourage labour less if the scheme is Bismarckian than if it is Beveridgean. A Bismarckian scheme may even encourage labour.
Alessandro Cigno
eng
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http://hdl.handle.net/10419/25817
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