ggplot2, magrittr, tidyr, dplyr, stringr, combinat, lfe,
pbapply, parallel
ggplot2, magrittr, tidyr, dplyr, stringr, combinat, fixest,
pbapply, parallel
ggplot2, magrittr, tidyr, dplyr, stringr, combinat, fixest,
pbapply, parallel, lmtest, sandwich