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. Author manuscript; available in PMC: 2015 Sep 3.
Published in final edited form as: Am Econ Rev. 2015 Feb;105(2):477–503. doi: 10.1257/aer.20120642

Table 5.

Relationship between County Level Socio-Economic Outcomes and Railroad Concentration in the Deep South

Literacy Rate School Attendance among
Children Aged 6–12
School Attendance among
Children Aged 13–18
Year Black White Black White Black White

1910 0.056***
(0.019)
0.051***
(0.012)
0.060*
(0.031)
0.033
(0.023)
0.073**
(0.033)
−0.003
(0.029)
1920 0.039*
(0.021)
0.022**
(0.010)
0.048
(0.032)
0.053***
(0.018)
0.067**
(0.034)
0.001
(0.026)
1930 0.036*
(0.019)
0.012
(0.008)
0.002
(0.030)
0.034**
(0.016)
0.049
(0.034)
0.017
(0.025)

Source: Authors’ calculations: dependent variables are calculated using the U.S. Census IPUMS and railroad concentration is calculated using Duke SSA/Medicare data as described in footnote 14. These are county-level regressions for the Deep South (including all counties for which data elements are available; n = 368 to n = 418), and include State fixed effects. Standard errors are in parentheses

***

significance at the 0.01 level

**

significance at the 0.05 level; and

*

significance at the 0.10 level.