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Econometria1-Transp-tema5-2

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2. Igualar a cero la derivada de Λ(p) para obtener el EMV<br />

(MLE):<br />

∂L(<br />

p)<br />

∂p<br />

pˆ<br />

MLE<br />

=<br />

n ∂ln<br />

f( p; Yi)<br />

∑ = 0<br />

∂p<br />

MLE<br />

i= 1 pˆ<br />

3. Utilizar una expansión de Taylor alrededor de p true para<br />

aproximar la ecuación no lineal como una ecuación lineal de<br />

ˆ MLE<br />

p :<br />

0 =<br />

∂L(<br />

p)<br />

∂p<br />

pˆ<br />

MLE<br />

≈<br />

∂L(<br />

p)<br />

∂p<br />

true<br />

p<br />

+<br />

∂<br />

L(<br />

p)<br />

2<br />

∂p<br />

2<br />

true<br />

p<br />

( ˆ MLE<br />

p – p true )<br />

9-41

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