Some Evidence of Speculative Bubbles in the Foreign Exchange Markets
The authors propose that the poor performance of portfolio models is due to their exclusion of speculative bubbles. They suggest a new unce rtainty-bubble solution (as opposed to a risk-bubble solution). Discr etion is minimized because the trend of the bubble is an exact functi on of the structural parameters. For three exchange rates, the bubble -augmented portfolio model passes the usual statistical tests and per forms better than its VAR equivalent in out-of-sample dynamic simulat ion. When the model was reestimated with the bubbles removed, and wit h ordinary dummies in place of the constrained trend, the parameter e stimates were invariably insignificant. Copyright 1987 by Ohio State University Press.
If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
As the access to this document is restricted, you may want to look for a different version under "Related research" (further below) or search for a different version of it.
Volume (Year): 19 (1987)
Issue (Month): 4 (November)
|Contact details of provider:|| Web page: http://www.blackwellpublishing.com/journal.asp?ref=0022-2879|