The contents of these folders are used to reproduce "Figure 1 - Computational Performance" in the paper.

eviews: (Eviews v10)
    - benchmark-eviews.prg: Simulation script
    - elapsed-eviews.txt: Simulation results
matlab: (Matlab v2019b)
    - ADF.m, PSY.m: Original files that calculate the GSADF test statistic
    - benchmark_matlab.m: Simulation script
    - elapsed-matlab.txt: Simulation results
stata: (STATA v14)
    - s{100:1000}.csv : Individual simulation results for different sample size
    - elapsed-stata.txt: Simulation results
    - benchmark-stata.do: Simulation script
    - time.ado: Subroutine that caclulate time elapsed
R: (R v4.0.2)
    - benchmark-r.R: Simulation script
    - elapsed-r.txt: Aggregated results that contain the median times
