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Table 2 shows the effect of the WWII GI Bill on high school completion for the pooled sample of white and black men. The first column shows the estimates from the preferred time window of five years before and five years after the discontinuity point of 1928. Columns 2 and 3 use narrower time windows, and columns 4, 5, and 6 use wider time windows. The time windows are chosen by consecutively adding two more years to the control group. The dependent variable is a dummy variable capturing whether the individual completed high school.

Table 2. 
Effect of the GI Bill on High School Completion for Men
1923—19321923—19281923—19301923—19341923—19361923—1938
Time Windows(1)(2)(3)(4)(5)(6)
Dependent Variable: Dummy Variable = 1 for completing high school 
WWII 0.134*** 0.179*** 0.141*** 0.126*** 0.109*** 0.0677*** 
 (0.0227) (0.0279) (0.0235) (0.0220) (0.0198) (0.0170) 
Korea 0.209*** 0.296*** 0.228*** 0.214*** 0.211*** 0.164*** 
 (0.0254) (0.0448) (0.0309) (0.0247) (0.0223) (0.0188) 
N 288,810 177,149 233,986 341,677 394,946 449,729 
R2 0.074 0.068 0.071 0.075 0.077 0.079 
1923—19321923—19281923—19301923—19341923—19361923—1938
Time Windows(1)(2)(3)(4)(5)(6)
Dependent Variable: Dummy Variable = 1 for completing high school 
WWII 0.134*** 0.179*** 0.141*** 0.126*** 0.109*** 0.0677*** 
 (0.0227) (0.0279) (0.0235) (0.0220) (0.0198) (0.0170) 
Korea 0.209*** 0.296*** 0.228*** 0.214*** 0.211*** 0.164*** 
 (0.0254) (0.0448) (0.0309) (0.0247) (0.0223) (0.0188) 
N 288,810 177,149 233,986 341,677 394,946 449,729 
R2 0.074 0.068 0.071 0.075 0.077 0.079 

Notes: The table shows the effect of the WWII GI Bill on the probability of high school completion for males. The independent variable of interest is the fraction of men who participated in WWII. The dependent variable is a dummy = 1 if the person completed high school. The first column with a symmetrical ten-year window around the discontinuity point (end of 1927) gives the preferred estimates. The sample consists of black and white men born in the United States between 1923 and 1938. WWII is the fraction of men who participated in WWII in a birth year-quarter by state of birth cell. Similarly, Korea is the fraction of men who participated in the Korean War or at “any other time” but did not serve in WWII, in a birth year-quarter by state of birth cell. Standard errors are corrected for heteroskedasticity and are clustered at the level of birth year-quarter by state of birth. Controls include trend which is defined as (birth year − 1929 + [quarter of birth/4]), trend squared, “Korea” interacted with trend variables, state of birth dummies, and their interactions with trend variables.

***Significant at the 1% level.

Source: 1970 Integrated Public Use Microdata Series (see Ruggles et al. 2010).

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