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Appendix II: Analysis of Factors Associated<br />
with Aviati<strong>on</strong> Fuel <strong>Prices</strong><br />
Table 9: 100 Low Lead (100LL) Pricing Regressi<strong>on</strong> C<strong>on</strong>sidering Both Nearby and<br />
On-Airport Competiti<strong>on</strong> (Towered-Airports Dataset)<br />
Variable<br />
Price of full-service 100LL<br />
Intercept<br />
4.63 c<br />
Airport operati<strong>on</strong>s<br />
0.022 c<br />
L<strong>on</strong>gest runway<br />
0.028 b<br />
East Coast States = 1<br />
0.25 c<br />
Per-capita income in county<br />
0.0083 a<br />
Per-capita income in county squared -0.000021<br />
Populati<strong>on</strong> in county<br />
0.0040 b<br />
Large-chain FBO operates at airport = 1<br />
0.67 c<br />
Self-service 100LL available at airport<br />
-0.107 b<br />
At airport more than <strong>on</strong>e FBO = 1<br />
-0.112 b<br />
Competiti<strong>on</strong> from nearby airports 0.00065<br />
Observati<strong>on</strong>s<br />
R-square<br />
Source: <str<strong>on</strong>g>GAO</str<strong>on</strong>g> analysis of fixed base operator (FBO) fuel price data. | <str<strong>on</strong>g>GAO</str<strong>on</strong>g>-20-16<br />
a indicates coefficient is statistically different from zero at the 10-percent level, b indicates coefficient is<br />
statistically different from zero at the 5-percent level and c indicates coefficient is statistically different<br />
from zero at the 1-percent level.<br />
528<br />
.49<br />
Page 36<br />
<str<strong>on</strong>g>GAO</str<strong>on</strong>g>-20-16 Airports
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