Marriage privatization their partnership; they would have a private marriage ceremony if they so chose in order to honor their private religious or philosophical concept of marriage. In a July 2008 article appearing in "The Monist" titled "Privatizing Marriage" Harvard Law Professor Cass Sunstein and University of Chicago economist Richard H. Thaler offer arguments for the privatization of marriage. Thaler and Sunstein also take up the topic in their co-authored 2008 book "Nudge: Improving Decisions about Wealth, Health, and Happiness." Sunstein and Thaler argue for marriage privatization among other positions under the heading of what they call "Libertarian Paternalism". Opposition to marriage
The Undoing Project Project" was met largely by rave reviews, with Glenn C. Altschuler arguing in the "Pittsburgh Post-Gazette" that it "may well be his best book." Writing in "The New Yorker", law professor Cass Sunstein and economist Richard Thaler praised the book's ability to explain complex concepts to lay readers as well as turn the biographies of Tversky and Kahneman into a page-turner: "He provides a basic primer on the research of Kahneman and Tversky, but almost in passing; what is of interest here is the collaboration between two scientists." Jennifer Senior of "The New York Times" wrote that "At its peak,