This seems to get trotted out once a year like it&#x27;s a new discovery.<p>Consumer Reports study from 2010: <a href="http:&#x2F;&#x2F;www.consumerreports.org&#x2F;cro&#x2F;magazine-archive&#x2F;2010&#x2F;january&#x2F;shopping&#x2F;same-products-different-prices&#x2F;overview&#x2F;same-products-different-prices-ov.htm" rel="nofollow">http:&#x2F;&#x2F;www.consumerreports.org&#x2F;cro&#x2F;magazine-archive&#x2F;2010&#x2F;jan...</a><p>University of Central Florida study from 2011 (I can&#x27;t find it online anymore) was mentioned in some of the other studies as saying basically the same thing.<p>New York Times on The Pink Tax from last year: <a href="http:&#x2F;&#x2F;www.nytimes.com&#x2F;2014&#x2F;11&#x2F;13&#x2F;opinion&#x2F;the-pink-tax.html?_r=0" rel="nofollow">http:&#x2F;&#x2F;www.nytimes.com&#x2F;2014&#x2F;11&#x2F;13&#x2F;opinion&#x2F;the-pink-tax.html?...</a>