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Table 3 BMI coefficients in log hours of work for single respondents: OLS, IV, and FE estimates

From: Marriage markets as explanation for why heavier people work more hours

  White White Black Black Hispanic Hispanic
Single women
 Panel A: OLS estimates
  BMI 0.00451** (2.463) 0.00581*** (3.246) 0.00668*** (4.365) 0.00682*** (4.496) −0.00120 (−0.359) −0.000336 (−0.105)
 Panel B: IV estimates
  BMI 0.0104* (1.835) 0.0138** (2.416) 0.00308 (0.458) 0.00452 (0.690) 0.00936 (0.919) 0.0101 (1.050)
  First-stage F-stat 107.2 101.9 45.8 45.6 32.7 32.6
 Panel C: sibling FE estimates
  BMI −0.00215 (−0.782) −0.00172 (−0.628) 0.00504* (1.809) 0.00439 (1.591) 0.00507 (0.913) 0.00523 (0.948)
  Control for wage No Yes No Yes No Yes
  Observations 6469 6469 4671 4671 2020 2020
Single men
 Panel D: OLS estimates
  BMI 0.00345* (1.927) 0.00306* (1.777) 0.00603** (2.331) 0.00450* (1.723) 0.00173 (0.746) 0.00201 (0.935)
 Panel E: IV estimates
  BMI 0.0186** (2.540) 0.0185** (2.558) 0.00225 (0.293) 0.00170 (0.227) 0.00151 (0.164) 0.00283 (0.329)
  First-stage F-stat 63.8 63.6 85.5 84.9 42.0 41.9
 Panel F: sibling FE estimates
  BMI 0.000333 (0.118) −0.000174 (−0.0634) 0.00564 (1.572) 0.00385 (1.095) −0.00155 (−0.467) −0.00156 (−0.481)
  Control for wage No Yes No Yes No Yes
  Observations 8648 8648 4777 4777 2997 2997
  1. Note 1: Control variables include work experience (quadratic), educational categories, dummies for whether the respondent believes in traditional gender roles, whether the respondent has any children, if the youngest child is below six, yearly age dummies, region of residence dummies, and year dummies. Note 2: For OLS and IV regressions, t-stats reported are based on standard errors clustered at the individual level. For the sibling FE model, the t-stats reported are based on standard errors clustered at the family level. *** p < 0.01, ** p < 0.05, and * p < 0.10