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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 Investment Data </h2>

<h3>Description</h3>


<p>a panel of 10 observations  from 1935  to 1954
</p>
<p><EM>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 dataframe 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>Moody's Industrial Manual, Survey of Current Business.
</p>


<h3>References</h3>


<p>Greene, W.H. (2003) <EM>Econometric Analysis</EM>, Prentice Hall, <a href="http://www.prenhall.com/greene/greene1.html">http://www.prenhall.com/greene/greene1.html</a>, Table F13.1.
</p>
<p>Baltagi, Badi H. (2003) <EM>Econometric analysis of panel data</EM>, John Wiley and sons, <a href="http://www.wiley.com/legacy/wileychi/baltagi/">http://www.wiley.com/legacy/wileychi/baltagi/</a>.
</p>


<h3>See Also</h3>

<p><code>Index.Source</code>, <code>Index.Economics</code>, <code>Index.Econometrics</code>, <code>Index.Observations</code>,
</p>
<p><code>Index.Time.Series</code></p>


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