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Repository Structure

This repository contains the following directories:

  • \1980_Census_Data
    • Contains do-file and data sets that construct the main 1980 Census data set used for estimation in the paper.
  • \Inductions_Data
    • Contains do-file and data sets that construct the final inductions data set (inductions.dta), as well as datasets that contain variations of measures of induction risk (see do-file for risk measures).
  • \Enr_PDF_YYYY_YY
    • Original PDF versions of school enrollment data from 1960 to 1970.

1980 Census Data

This folder contains Stata do-files and data to construct the main 1980 Census estimating sample in Table 1 of the paper using raw Census data downloaded from IPUMS.org. It contains the following files:

  • census_1980.dta – raw 1980 Census 5% Sample from IPUMS. The sample is restricted to men aged 25 to 40.
  • census1980_clean.do – cleans census_1980.dta and merges cohort size, employment-population, and induction data to create one of the final 1980 Census data sets (census1980_cleaned.dta). The do-file also creates Table 1 before saving census1980_cleaned.dta. The following files are merged in to create the final data set:
    • blanchard_katz.dta – state-level unemployment insurance rates (epop and epopstate) sorted by bplg and year19
    • cohortsize_c60.dta – 1960 cohort size at the birthyear and statebirthyear level (lnsize and lnstatesize) sorted by bplg and birthyear.
    • inductions_short6m.dta – a short version of inductions.dta (containing only birthyear, bplg, staterisk, nationalrisk, nationalrisk_, and risk)

Induction Risk Data

This folder contains Stata do-files and data to create our birth state - birth year measures of Vietnam conflict induction risk:

  • inductionrisk_setup3.do – generates national-level and state-level induction risk by birth year and by six-month birth interval. Creates data sets with various definitions of induction risk.
    • This do-file uses the following data sets:
      • national_inductions.dta – national level inductions and cohort size by birth year for birth years 1935 to 1959. Note that inductions for 1955 onwards equal zero. Created from inductions.xls.
      • state_inductions.dta – state level inductions and enrollments by calendar year. Created from state_level_inductions_enrollments.xls (see below).
      • state_inductions_aw.dta – state level inductions and enrollments by six months of calendar year. Created from state_level_inductions_enrollments_aw.xlsx.
    • This do-file creates the following data sets:
      • inductions.dta – final data set created by inductionrisk_setup3.do.
      • inductions_short.dta – a short version of inductions.dta containing only birthyear, bplg, staterisk, nationalrisk, nationalrisk_, and risk. Note that risk is equivalent to the measure in C&L 2000. Our nationalrisk is created by aggregating up state level induction totals and enrollments and is not exactly equal to risk but is very close. See inductionrisk_setup3.do for constructions.
      • inductions_short6m.dta, inductions_short6mt.dta, inductions_short6ma.dta – versions with different definitions of induction risk.

The full set of raw data that we put together to construct the data sets on induction risk:

  • inductions.xls – national-level induction rates and cohort sizes from C&L (data from David Card) and SSS website.
  • state_level_enrollments.xls – state-level 10th and 11th grade enrollments from 1961-1969, and secondary totals for 1959-1960.
  • state_level_inductions.xls – state-level inductions from 1954-1972, raw and corrected. State level inductions processed and received in paper form from SSS in two batches. First batch reports annual induction numbers by state and year or six-month period. Second batch reports cumulative induction totals by state and year. Corrections made for obvious data entry mistakes. Edited observations are highlighted in “corrected” tab. “Inductions_final” tab contains calculated annual total inductions by state for 1955 to 1972.
  • state_level_inductions_enrollments.xls – final tabulations of state-level induction and enrollment counts. Combines data from state_level_inductions “Inductions_final” tab and state_level_enrollments. “Combined” tab contains state level annual induction and enrollment numbers where indYYYY is inductions from “Inductions_final” tab and enrYYYY is the following: Secondary enrollment/4 if YYYY=1959 or 1960 from state_level_enrollments, and 11th grade enrollment for YYYY=1961 to 1970. “Combined and Adjusted” tab shifts enrYYYY to enr(year 19=YYYY+2) for matching and division by year a cohort turned 19. “Combined and Adjusted” tab data form state_inductions.dta.

NOTE: There are also “AW” versions of the above, which carry the six-month level variation through instead of collapsing it.