Hi everyone,

I am using the following specification:
Code:
 reghdfe     y_hat female_cw i.age  if random==0, absorb(kontor_handel#i.year) vce(cluster sign)
but when Stata shows me the table, there are no standard errors and hence no p-values.

Could someone please explain to me why is that?
kontor_handel#i.year is office by year fixed effects.