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<table width="100%" summary="page for Grunfeld"><tr><td>Grunfeld</td><td align="right">R Documentation</td></tr></table>

<h2>Grunfeld's Investment Data</h2>

<h3>Description</h3>


<p>A panel of 10 observations from 1935 to 1954
</p>
<p><EM>total number of observations</EM> :  200
</p>
<p><EM>observation</EM> :  production units
</p>
<p><EM>country</EM> :  United States
</p>


<h3>Usage</h3>

<pre>data(Grunfeld)</pre>


<h3>Format</h3>

<p>A data frame containing :
</p>

<dl>
<dt>firm</dt><dd><p>observation</p>
</dd>
<dt>year</dt><dd><p>date</p>
</dd>
<dt>inv</dt><dd><p>gross Investment</p>
</dd>
<dt>value</dt><dd><p>value of the firm</p>
</dd>
<dt>capital</dt><dd><p>stock of plant and equipment</p>
</dd>
</dl>



<h3>Source</h3>


<p>Online complements to Baltagi (2001).
</p>
<p><a href="http://www.wiley.com/legacy/wileychi/baltagi/">http://www.wiley.com/legacy/wileychi/baltagi/</a>.
</p>


<h3>References</h3>


<p>Baltagi, Badi H. (2001) <EM>Econometric Analysis of Panel Data</EM>, 2nd ed., John Wiley and Sons.
</p>


<h3>See Also</h3>

<p>For the complete Grunfeld data (11 firms), see
<code>Grunfeld</code>, in the <code>AER</code> package.
</p>


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