Bitcoin, along with other cryptocurrencies, has been described as an economic bubble by at least eight Nobel Memorial Prize in Economic Sciences laureates, including Robert Shiller,\[192] Joseph Stiglitz,\[287] and Richard Thaler.\[288]\[17] Economist and columnist Paul Krugman has described bitcoin as "a bubble wrapped in techno-mysticism inside a cocoon of libertarian ideology",\[183] economist Nouriel Roubini of New York University has called bitcoin the "mother of all bubbles",\[289] and University of Chicago economist James Heckman has compared it to the 17th-century tulip mania.\[17]