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Lectures for Part II: Time Series Models in Finance

Lectures for Part II: Time Series Models in Finance

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Sample ACF IBM (a) 1962-1981, (b) 1982-2000<br />

(a) ACF of IBM (1st half)<br />

(b) ACF of IBM (2nd half)<br />

ACF<br />

0.0 0.2 0.4 0.6 0.8 1.0<br />

ACF<br />

0.0 0.2 0.4 0.6 0.8 1.0<br />

0 10 20 30 40<br />

Lag<br />

0 10 20 30 40<br />

Lag<br />

Remark: Both halves look like white noise.<br />

MaPhySto Workshop 9/04<br />

20

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