which variable is an insignificant variable why is it strange that a variable is insignificant over a whole sample period what is meant by the term fixed effect why are some variables insignificant when variable is significant for both sub periods which variables are insignificant in a finance sample why is an fe variable insignificant what is the significance of each variable in the fe model what variable is insignificant for both subperiods of a sample? what are the variables that indicate a fixed effect which variables are not significant for both sample periods? why are some variables insignificant for each sub period of the regression? which variable is most likely to be insignificant for both sub periods and for all sub periods? why are some variables not significant for the whole sample period which variable is significant for both sub periods which variables show significant fe results which variables show an insignificant trend in a whole sample? what variables show up only in the whole sample of the regression? how is the fe regression based on country which variables show an insignificant effect in both sub periods of a sample