<em>description</em></dd>
</dl>
<h2 id="references">References</h2>
<p>Copeland, A.H. (1951). A “reasonable” social welfare function, mimeographed. In: Seminar on applications of mathematics to the social sciences. Ann Arbor: Department of Mathematics, University of Michigan.</p></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">def copeland(
    df,
    alternative=&#34;alternative&#34;,
    delimiter=&#34;&gt;&#34;,
    pw_matrix=False,
    b