These are state-year-level data for national trade from the Correlates of War project.
Format
A data frame with 14410 observations on the following four variables.
ccode
the Correlates of War state system code
year
the year
imports
total imports of the state in current million USD
exports
total exports of the state in current million USD
References
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.