on Examination Study</dd>
      </dl><dl><dt>

          <code><a href="PSID2.html">PSID2</a></code>

        </dt>
        <dd>Panel Study of Income Dynamics</dd>
      </dl><dl><dt>

          <code><a href="RandHIE.html">RandHIE</a></code>

        </dt>
        <dd>RAND Health Insurance Experiment</dd>
      </dl><dl><dt>

          <code><a href="ssmodels.html">ssmodels-package</a></code> <code><a href="ssmodels.html">ssmodels</a></code>

        </dt>
        <dd>ssmodels: Sample Selection Models in R