In addition,both Bodie and Ross are right about this concept " OCF ". In fact , Bodie does not definite the so-called "OCF" obviously.The only thing is FCFF for Bodie . As to Ross, OCF is an accurate definition coming up in chapter 2 of the 9th edition when introducing this equation CF(A)=CF(B)+CF(S) and no wrong at all .Those who misunderstand Ross or OCF are the ones who do not recognize the essence of this specific concept .GOOD NIGHT.