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ECONOMICS UNIQUENESS

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

TABLE 7.7 continued<br />

Variables<br />

Distance 0.013*** 0.013***<br />

[0.004] [0.004]<br />

Constant –0.027 –0.036<br />

[0.433] [0.437]<br />

Instrument coverage Overall Cultural only<br />

Kleibergen-Paap rk Wald F statistic 19.72 18.33<br />

Stock-Yogo weak ID test critical values (10 percent maximal IV size) 16.38 16.38<br />

Stock-Yogo weak ID test critical values (15 percent maximal IV size) 8.96 8.96<br />

Observations 96 96<br />

R-squared 0.212 0.205<br />

Robust standard errors in brackets.<br />

*** p

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