Are there any statistics on the benefits/detriments of polygamy?”
There are a number of organizations that can provide you with general stats. One organization is at http://www.polygamy.org. The founder is a former FLDS wife and can provide certain statistic. There is a research resource located here: http://www.apologeticsindex.org/122-polygamy-research-resources . The site contains numerous links to resources. Keep in mind that most information and research-based organizations consider polygamist communities cults, because they practice severe “isolation” techniques consistent with cult behavior, generally. If that colors your perspective on the information these organizations are providing, then perhaps you want to go to the source. You can also read Jon Krakauer’s excellent book, “Under the Banner of Heaven,” which profiles the history of the LDS movement (and later the FLDS movement, which still practices polygamy). There are few stats in the book (some, but not a lot), but there is significant factual data about the polygamist movement and what
