Social preference relations become circular and undecidable.
<blockquote>
no social system can simultaneously
</blockquote>
<ul>
<li><blockquote>
 be committed to a minimal sense of freedom,
</blockquote>
</li>
<li><blockquote>
 always result in a type of economic efficiency known as Pareto efficiency, and
</blockquote>
</li>
<li><blockquote>
 be capable of functioning in any society whatsoever
<a href="https://en.wikipedia.org/wiki/Liberal_paradox">https://en.wikipedia.org/wiki/Liberal_paradox</a>
</blockquote>
</li>
</ul>
<a href="http://www.f.waseda.jp/ksuga/pubphil1212.pdf">http://www.f.waseda.jp/ksuga/pubphil1212.pdf</a>
<ul>
<li><a href="/en/Pareto%20principle">Pareto principle</a></li>
</ul>
<hr>
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Sen's liberal paradox