https://journals.sagepub.com/doi/pdf/10.1177/1536867X1601600213
Stata Journal, Vol. 16, Number 2, pp. 482–490
Houngbedji, Kenneth. 2016. "Abadie's semiparametric difference-in differences estimator",
Data is currently available as supplemental material for the article:
Review of Economic Studies 72: 1–19.
Source: Abadie, A. 2005. Semiparametric difference-in-differences estimators.
Impact of unionization on log-wages of female workers between 1996 and 1997 in the US
An additional variable, -seq-, is added as an ID code to sort the data and data is compressed
The original dataset is available at http://www.hks.harvard.edu/fs/aabadie/cpsu97.raw
The data is an excerpt of the current population survey (CPS). It consists of female workers observed in 1996 who were resurveyed in 1997. The workers were not unionized in 1996.