Good day everyone, I am currently working on the focus - Working Capital Management and Performance of Consumer Goods Firms in Nigeria.
I have culled data from financial statements of consumer goods firms and I have estimated necessary analysis such as pooled OLS, fixed effect (time and period specific), random effect, f-test and hausman test with the help of scholars this platform. I am currently stucked as i dont have code or procedure to conduct the following post estimation tests - Wald Test, Pesaran Test, Woodridge Test and other necessary post estimation tests to aid a robust analysis for my thesis. I would appreciate any aid and contribution please.

My variables are ROA (dependent variable) while ACC (Average Collection Period), CCC (Cash Conversion Cycle) & APP (Average Payment Period) are my control variables of working capital.

Thanks in advance.

Best Regards.