I'm in urgent need of help and would seriously appreciate your time! I am conducting a regression of a few independent variables against the dependent variable (Firm Value) with company-specific fixed effects. However, one of my independent variables is collinear with the fixed effects. This independent variable (that exhibits the collinearity) has either a value of 0 or 1 depending on whether the company has a sunset clause on its dual class shares (i.e. dual class shares must retire after a certain period of time). I cannot remove this independent variable because that's the whole point of my study. Is there any way to resolve this?

p.s. completely new to stata here