I am simply trying to prove that giving cash assistance to a company effects their related financial items in a good way.
I calculated the related item's mean for all companies, it's non negative and mostly positive for companies receiving cash assistance.
But when I fit a regression model (using R's
lm()) with all variables that I have (amount of cash assistance, company age, all variable I think they're related etc.) cash assistance variables mostly havem negative coefficient.
I tried different combinations of variables, applying logarithmic transformation, sigmoid transformation and the others. Since I don't know too many statistics, I wanted to ask you this weak looking (maybe nonsense) question.
Thanks in advance.