R/documentation.R

#' Angrist and Krueger (1991) Census data
#'
#' Sample of males born in the US in 1930-39 from 5 percent sample of the 1980
#' US Census
#' @format A data frame with 329,509 observations on 10 variables:
#'
#' \describe{
#'
#' \item{age}{Age, measured at quarterly precision}
#'
#' \item{education}{Years of education}
#'
#' \item{lwage}{Log of weekly wage}
#'
#' \item{married}{Indicator for being married}
#'
#' \item{qob}{Quarter of birth}
#'
#' \item{sob}{State of birth}
#'
#' \item{black}{Indicator for being black}
#'
#' \item{smsa}{SMSA indicator}
#'
#' \item{yob}{Year of birth}
#'
#' \item{division}{Census division}
#'
#' }
#' @source Josh Angrist's website,
#'     \url{http://economics.mit.edu/faculty/angrist/data1/data/angkru1991}
#' @references{
#'
#' \cite{Angrist, Joshua D., and Alan B. Krueger. 1991. “Does Compulsory
#' School Attendance Affect Schooling and Earnings?” The Quarterly Journal
#' of Economics 106 (4): 979–1014. \doi{10.2307/2937954}.}
#'
#' }
"ak80"
kolesarm/ManyIV documentation built on March 13, 2021, 6:31 a.m.