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ECONOMICS UNIQUENESS

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206 ■ THE <strong>ECONOMICS</strong> OF <strong>UNIQUENESS</strong><br />

TABLE 7.9 continued<br />

Variables<br />

Stock-Yogo weak ID test<br />

critical values (20 percent<br />

maximal IV size)<br />

— 8.75 6.46 6.71<br />

Hansen-J test (p value) 0.31 0.58 0.78<br />

Observations 96 96 96 96<br />

R-squared 0.212 0.203 0.199 0.202<br />

Robust standard errors in brackets.<br />

*** p

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