Anybody know how to quantify (measure) agency cost of equity?

fzxc613

RT.

Or, anybody know how to motivate this agency cost of equity = cost of equity?

 please refer me to the literature. I had a hard time to find this.

Thx a million!

fzxc613

I just got an idea when I walk to my office in the morning,

maybe I can use G-index as an proxy for agency cost of equity, although it is not equal to cost of equity