EY 1 2X2ikXkX2i

a2 n1

Setting these equations equal to zero (the first-order condition for optimization) and letting Â, f2,..., fa and a2 denote the ML estimators, we obtain, after simple algebraic manipulations,

E^ = nfa + ÀE X2i + ••• + faJ^Xki e YiX2i = f 1 e X2i + f 2 e X2i + ••• + fk e X^X*

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Rules Of The Rich And Wealthy

Rules Of The Rich And Wealthy

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