Hi Statalist,
I have conducted a difference-in-difference using ROA on firms undertaking a SEO matched with control firms using propensity score matching. A simple parametric t-test has been used to test for significance in ROA (and other different operating performance meaures). I am considering to use multiple statistical tests (in particular non-parametric tests due to assumption-problems with t-test) on my analysis and have read about the Wilcoxon rank test.
My questions is; does it make sense to implement Wilcoxon rank test with panel data using difference-in-difference? I'm not sure how it can measure the dependent variable in panel data. Or can I implement the test to the propensity score matching to test for difference in the treated and untreated group?
In addition to that, I search for recommendations to implement it in STATA.
Hope anyone can help me. Thanks in advance.
Best regards,
Kasper Nygaard
Related Posts with Non-parametric tests in difference-in-difference (rank-test)
syntax: add a minus before a list of variablesDear Stata users, I want to make a convenient wrapper using gsort command. My question is how to ad…
AsdocHi, I am using asdoc to produce some mean difference tests (ttest). How can I change the names of t…
How to convert a scalar value into a large matrixSay I have a value of 2 How can I convert this into say a [50,1] matrix such that it is the same si…
How can I install meta analysis package in my stata 17?Dear, professor, I want to install a meta-analysis package on my Stata 17. It shows like that. Runni…
Outreg2 and other issues with xtprobitHi all, I have a few questions regarding my code below: 1- Using Code: xtset dep time gives me th…
Subscribe to:
Post Comments (Atom)
0 Response to Non-parametric tests in difference-in-difference (rank-test)
Post a Comment