CFAI SS5 FSA Reading 21 Q 12

Hoped somebody could explain this to me, I just don’t see why it is so… In question 12 it asks what the effect on Zimt’s net income in 2009 will be. The answer is that net income is independent of the accounting method used for the investment in Oxbow. I don’t get it, I thought that if Zimt is deemed to have control of Oxbow you would include all of Oxbow’s revenue + expenses in Zimt’s statements, thereby increasing NI? Thanks

Hang on, think my tired old brain has figured it out - Net income is affected but the actual figure is the same under each method (the same for equity) sigh

don’t forget minority interest/non-controlling interest deduction to net income for the minority owner.