Hi,
I am using firm fixed-effect in my main regressions and the results are significant. When I run the test without firm fixed-effect, the results become insignificant. Does this undermine my results of the main test? I am required to present both results. So, how can I justify such difference please?
My study is on the effect of CEO tenure on audit quality. I am using panel data between 2012-2018.
Thank you very much.