using the US dollar as their currency) there would be several advantages in switching the pricing of certain assets, such as oil and gold, from dollars to SDRs. For some commentators, that amounts to a call for a "new world currency that would challenge the dominance of the dollar". In 2008, the IMF Board appointed an independent investigator following allegations that Strauss-Kahn had had an affair with a subordinate, Piroska Nagy, who was married at the time to economist Mario Blejer. Nagy alleged that Strauss-Kahn had used his position to coerce her into the affair. She was later made redundant, and Strauss-Kahn assisted her in getting a new job. The IMF board issued the findings of the investigation; while noting that the affair was "regrettable and reflected a serious error of judgment on the part of the managing director", the board cleared Strauss-Kahn of harassment, favoritism or abuse of power, and indicated that he would remain in his post. Strauss-Kahn issued a public apology for the affair. Le Journal du Dimanche dubbed him "le grand séducteur" (the Great Seducer). Strauss-Kahn made comments that could be perceived as critical of global financial actors, in an interview for a documentary about the late-2000s financial crisis, Inside Job (2010). He said he had attended a dinner organised by former Treasury Secretary Henry Paulson in which several CEOs of 'the biggest banks in the U.S.' had admitted they (or perhaps bankers in general) were 'too greedy' and bore part of the responsibility for the crisis. They said the government "'should regulate more, because we are too greedy, we can't avoid it.'" Strauss-Kahn said he warned the officials of a number of departments of the U.S. government of an impending crisis. He also said: "At the end of the day, the poorest – as always – pay the most." Referring to his diplomatic efforts to secure IMF aid for Europe following the 2010 sovereign debt crisis, economist Simon Johnson described Strauss-Kahn as "Metternich with a BlackBerry". In May 2011, referring to the IMF's change of heart in favour of progressive rather than neoliberal values, Joseph Stiglitz wrote that Strauss-Kahn had proved himself to be a "sagacious leader" of the institution. Following Strauss-Kahn's arrest for sexual assault in New York, economist Eswar Prasad said that should he be forced to step down, the IMF "will find it hard to find as effective and skilful an advocate