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usa_tradegdp.Rd
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usa_tradegdp.Rd
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% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/rd-usa_tradegdp.R
\docType{data}
\name{usa_tradegdp}
\alias{usa_tradegdp}
\title{U.S. Trade and GDP, 1790-2018}
\format{
A data frame with 229 observations on the following 5 variables.
\describe{
\item{\code{year}}{the year}
\item{\code{gdpb}}{U.S. GDP (nominal, in billions)}
\item{\code{pop}}{Population of the U.S. (in thousands)}
\item{\code{impo}}{The value of U.S. imports (in billions)}
\item{\code{expo}}{The value of U.S. exports (in billions)}
}
}
\usage{
usa_tradegdp
}
\description{
A yearly data set on U.S. trade and GDP from 1790 to 2018. Data also include
a population variable to facilitate per capita adjustments, if the user
sees it useful.
}
\details{
Data come from various sources (see, especially:
\url{https://econdataus.com/tradeall.html}). Post-1989 data come from the
U.S. Census Bureau. 2018 GDP comes from the IMF. 2018 population estimate
comes from the U.S. Census Bureau.
}
\keyword{datasets}