&gt; No exactly the same, but it is becoming more common for women in the United States to have children to multiple different men in quick succession. Definitely a form of polygamy.<p>While sometimes people refer to &quot;serial polygamy&quot;, and there are some contexts where its actually reasonable to view that as a kind of polygamy, here, where the focus is on formal, recognized marriage structures and whether men have the opportunity to enter into them, it isn&#x27;t the kind of polygamy that is at issue, both:<p>(1) because its not a formal, recognized marriage structure, and
(2) because even if it were, it would be polyandrous, and the paper is comparing polygyny (not &quot;polygamy&quot; more generally) to monogamy, so this would be driving <i>past</i> monogamy on to the opposite side, if it were relevant at all.