Quick Q on Econ Profit and RI always, economic, reference, capital

Maddin

Is Residual Income the same thing as Economic Profit?
I’ve always thought Econ Profit as EVA but in Schweser book 3 page 274 the first sentence it says:
“Residual Income (RI), or economic profit, is the net income of a firm less a chrrge that measurs stockholders’ opportuity cost of capital. ”
and… no other reference about economic profit. (I dont have the CFAI book with me atm but will check on it when I do have it).