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external validity, fertility, labor supply, experiments
External validity, fertiity, labor supply, experiments
external validity, fertilty, labor supply
Twins, Same-Sex, Instrumental Variables, Development, Economic History
labor supply, fertilty, mothers
value added, information intervention, preferences
Twins, instrumental variables, development, economic history, fertility, labor supply
Tracking, non-cognitive skills
This is a CEPR Discussion Paper. CEPR charges a fee of $8.00 for this paper.
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Abortion, crime, Risky behavior
This is a National Bureau of Economic Research Paper. NBER charges a fee of $5.00 for this paper.
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