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BACKGROUND Aberrant functional connectivity within the default network is generally assumed to be involved in the pathophysiology of obsessive compulsive disorder (OCD); however, the genetic risk of default network connectivity in OCD remains largely unknown. METHOD Here, we systematically investigated default network connectivity in 15 OCD patients, 15(More)
  • Philippe Jorion, Charles Shi, Paul Merage, William Sanjian Zhang
  • 2007
Over the latest twenty years, the average credit rating of U.S. corporations has trended down. This observation has been interpreted as evidence that rating agencies have been tightening credit standards. More formally, Blume, Lim, and MacKinlay (1998) model the credit rating process by an ordered probit regression and indeed find that the annual intercept,(More)
Financial scholars who research the initial underpricing and long-term underperformance of IPOs generally attribute these phenomena to information asymmetry and investors’ misevaluations. Here, we identify, on a sample of 2,696 US IPOs issued during 19801995, a widespread source of information asymmetry and valuation uncertainty—the R&D activities of(More)
  • Dan Givoly, Charles Shi, +7 authors Theodore Sougiannis
  • 2007
The paper assesses the value of the information contained in management’s determination of the accounting treatment for software development costs. The assessment is made in the context of the initial public offerings (IPO) market and is based on the effect of the accounting treatment on information asymmetry and hence IPO underpricing. We hypothesize that(More)
Financial scholars who research the initial underpricing and long-term underperformance of IPOs generally attribute these phenomena to information asymmetry and investors’ misevaluations. Here, we identify, on a sample of 2,696 US IPOs issued during 1980-1995, a widespread source of information asymmetry and valuation uncertainty—the R&D activities of(More)
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