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

<h2>Evaluating Treatment Effect of Training on Earnings </h2>

<h3>Description</h3>


<p>a cross-section from 1974
</p>
<p><EM>number of observations</EM> :  2675
</p>
<p><EM>country</EM> :  United States
</p>


<h3>Usage</h3>

<pre>data(Treatment)</pre>


<h3>Format</h3>

<p>A dataframe containing :
</p>

<dl>
<dt>treat</dt><dd><p>treated ?</p>
</dd>
<dt>age</dt><dd><p>age</p>
</dd>
<dt>educ</dt><dd><p>education in years</p>
</dd>
<dt>ethn</dt><dd><p>a factor with levels (&quot;other&quot;,&quot;black&quot;,&quot;hispanic&quot;)</p>
</dd>
<dt>married</dt><dd><p>married ?</p>
</dd>
<dt>re74</dt><dd><p>real annual earnings in 1974  (pre-treatment)</p>
</dd>
<dt>re75</dt><dd><p>real annual earnings in 1975  (pre-treatment)</p>
</dd>
<dt>re78</dt><dd><p>real annual earnings in 1978  (post-treatment)</p>
</dd>
<dt>u74</dt><dd><p>unemployed in 1974 ?</p>
</dd>
<dt>u75</dt><dd><p>unemployed in 1975 ?</p>
</dd>
</dl>



<h3>Source</h3>


<p>Lalonde, R. (1986) &ldquo;Evaluating the Econometric Evaluations of Training Programs with Experimental Data&rdquo;, <EM>American Economic Review</EM>, 604&ndash;620.
</p>
<p>Dehejia, R.H.  and  S.  Wahba (1999) &ldquo;Causal Effects in Nonexperimental Studies: reevaluating the Evaluation of Training Programs&rdquo;, <EM>Jasa</EM>, 1053&ndash;1062.
</p>
<p>Dehejia, R.H.  and  S.  Wahba (2002) &ldquo;Propensity-score Matching Methods for Nonexperimental Causal Studies&rdquo;, <EM>Restat</EM>, 151&ndash;161.
</p>


<h3>References</h3>


<p>Cameron, A.C.  and  P.K.  Trivedi (2005) <EM>Microeconometrics : methods and applications</EM>, Cambridge, pp. 889&ndash;95.
</p>


<h3>See Also</h3>

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


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