= the sample moments by h() = 2₁h (w;, 0) - quadratic form Q₁ (0) becomes Qn(0) = h(0)'w,h(0) [T₁1 (0) ₁₂ (0) ] W₁h²(0)+w₂h²₂ (0) = = W1 0 0 W2 1 h₁ (0) h₂(0)

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