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Risk managers make frequent use of finite Taylor approximations to option pricing formulas, particularly of first and second order (delta and gamma). This paper shows that for a plausible range of parameter values, the Taylor series for the Black-Scholes formula diverges. Using a numerical...
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This article evaluates supervisory approaches to the measurement and capital treatment of the price risk of options positions. The authors find that approximate value-at-risk rules tend to provide better estimates of potential losses than simple strategy-based rules. The value-at-risk rules are...
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In this paper we rethink the NAIRU concept and examine whether it might have a useful role in monetary policy. We argue that it can, but success depends critically on defining NAIRU as a short-run concept and distinguishing it from a long-run concept like the natural rate of unemployment. We...
Persistent link: https://www.econbiz.de/10013231562
In this paper we rethink the NAIRU concept and examine whether it might have a useful role in monetary policy. We argue that it can, but success depends critically on defining NAIRU as a short-run concept and distinguishing it from a long-run concept like the natural rate of unemployment. We...
Persistent link: https://www.econbiz.de/10012470871