A note on the social security systems with built-in pro-fertility measure
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1946 ◽
Vol 72
(1)
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pp. 79-118
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2020 ◽
Vol 6
(4)
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pp. 228-247
1981 ◽
Vol 10
(3)
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pp. 353-366
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2021 ◽
Vol 18
(1)
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pp. 32-62
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