Table 5.

Effects of Junk Food Availability on BMI and Obesity in Fifth Grade

	Log BMI			Obese
	(1)	(2)	(3)	(4)	(5)	(6)
A. OLS Estimates
Junk food availability	0.011*	0.007	0.001	0.019*	0.009	−0.001
	[0.005]	[0.005]	[0.003]	[0.009]	[0.010]	[0.007]
B. IV Estimates
Junk food availability	0.083	0.010	0.003	0.104	0.014	0.003
	[0.064]	[0.029]	[0.020]	[0.114]	[0.060]	[0.046]
C. Reduced Form Estimates
Combined school attendance	0.009	0.002	0.001	0.012	0.003	0.001
	[0.006]	[0.006]	[0.004]	[0.011]	[0.012]	[0.009]
Covariates
Demographics	Y	Y	Y	Y	Y	Y
State & urbanicity dummies	N	Y	Y	N	Y	Y
Baseline BMI	N	N	Y	N	N	Y

Notes: N=9,380. Robust standard errors clustered at school level are shown in brackets. Other covariates in the model include male, age (months), male*age, race/ethnicity, kindergarten BMI, mother’s education, income, private school dummy, categories for percent minority in school and school enrollment, and state and urbanicity dummies. First stage results are shown in Table 2.

⁺significant at 10%;

^*significant at 5%;

^**significant at 1%.