These are state-year-level data for national trade from the Correlates of War project.
A data frame with 14410 observations on the following four variables.
the Correlates of War state system code
total imports of the state in current million USD
total exports of the state in current million USD
data-raw directory on the project's Github shows how the data were processed.
Barbieri, Katherine and Omar M.G. Keshk. 2016. Correlates of War Project Trade Data Set Codebook, Version 4.0. Online: https://correlatesofwar.org
Barbieri, Katherine, Omar M.G. Keshk, and Brian Pollins. 2009. "TRADING DATA: Evaluating Our Assumptions and Coding Rules." Conflict Management and Peace Science, 26(5): 471-491.
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