Consols In the Cir Model
A consol is a default-free financial instrument paying a constant stream of one unit of money. A synonym is a perpetuity. the valuation of a consol presents a particular difficulty: the time horizon of this instrument is infinity, and hence the usual technique of replacing the physical probability measure by a new probability measure represents serious problems with regard to absolute continuity of the two measures. We will work out explicit formulas when the instantaneous riskless interest rate follows a square-root process under the risk-free measure. Several mathematical properties will be investigated. Yor and Geman and Yor have considered the problem of pricing consols and carry out a more fundamental analysis (see References). This paper is self-contained and emphasizes properties or techniques not covered by those authors. Copyright 1993 Blackwell Publishers.
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Volume (Year): 3 (1993)
Issue (Month): 2 ()
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