ex number</p>
</dd>
<dt>pf</dt><dd><p>fuel price</p>
</dd>
<dt>lf</dt><dd><p>load factor, the average capacity utilization of the fleet</p>
</dd>
</dl>



<h3>References</h3>

<p>Greene, W.H. (2003) <em>Econometric Analysis</em>, Prentice Hall, <a href="https://archive.org/details/econometricanaly0000gree_f4x3">https://archive.org/details/econometricanaly0000gree_f4x3</a>, Table F7.1.
</p>


<h3>See Also</h3>

<p><code>Index.Source</code>, <code>Index.Economics</code>,
<code>Index.Econometrics</code>, 
<cod