Goiter and Confounding Factors

Goiter and Confounding Factors Marine’s 1917-19 experiment was the first to inform the US public that iodine supplementation could prevent and treat goiter; hence there is little reason to suspect a direct role of iodine in res- idential selection or selection into iodine-rich diets. Supporting this claim, Figure B1 shows that goiter incidence was concentrated… Continue reading Goiter and Confounding Factors

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Labor Supply and Income discussion

Labor Supply and Income In all of the regressions discussed in this section, our coefficients of interest are the after-by-goiter rate interaction and the during-by-goiter rate interaction: these represent the effect of salt iodization on our outcomes of interest. Although the following tables only report these two coefficients, all specifications also include state of birth… Continue reading Labor Supply and Income discussion

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Effects of Salt Iodization on Labor

Effects of Salt Iodization on Labor and Income Outcomes, By Gender (1) (2) (3) (4) Panel A: Females After x Goiter Rate 0.0108*** 0.0121*** 0.0144*** 0.149*** (0.00360) (0.00395) (0.00525) (0.0505) During x Goiter Rate 0.00519 0.00579 0.0206*** 0.0192 (0.00372) (0.00405) (0.00466) (0.0398) Observations 1236420 1236420 606704 1108650 Mean of Dep. Var. 0.429 0.448 0.659 5.586… Continue reading Effects of Salt Iodization on Labor

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Assignment on Gender Heterogeneity

Gender Heterogeneity We next ask whether this cognitive shock impacted labor market outcomes differently for men and women. Table 4 reports the results of two separate regressions: one for women (Panel A) and one for men (Panel B), along with the difference in our main coefficients across the two specifications (Panel C). Stark gender differences… Continue reading Assignment on Gender Heterogeneity

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