haku: @indexterm FINANCIAL REGULATION / yhteensä: 40
viite: 7 / 40
| Tekijä: | Danielsson, J. |
| Otsikko: | The emperor has no clothes: limits to risk modelling |
| Lehti: | Journal of Banking and Finance
2002 : JUL, VOL. 26:7, p. 1273-1296 |
| Asiasana: | Risk management Risk measurement Value-at-risk Financial regulation |
| Kieli: | eng |
| Tiivistelmä: | The paper considers the properties of risk measures, primarily value-at-risk, from both internal and external points of view. It is argued that since market data is endogenous to market behaviour, statistical analysis made in times of stability does not provide much guidance in times of crisis. In a survey across data classes and risk models, the empirical properties of current risk forecasting models are found to be lacking in rebustness while being excessively volatile. For regulatory use, the VaR measure may give misleading information about risk, and in some cases may actually increase both idiosyncratic and systemic risk. |
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