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Analysis of Extreme Values of Daily Percentage Increases and Decreases in Crude Oil Spot Prices
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 Title & Authors
Analysis of Extreme Values of Daily Percentage Increases and Decreases in Crude Oil Spot Prices
Yun, Seok-Hoon;
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Tools for statistical analysis of extreme values include the classical annual maximum method, the modern threshold method and variants improving the second one. While the annual maximum method is to t th generalized extreme value distribution to the annual maxima of a time series, the threshold method is to the generalized Pareto distribution to the excesses over a high threshold from the series. In this paper we deal with the Poisson-GPD method, a variant of the threshold method with a further assumption that the total number of exceedances follows the Poisson distribution, and apply it to the daily percentage increases and decreases computed from the spot prices of West Texas Intermediate, which were collected from January 4th, 1988 until December 31st, 2009. According to this analysis, the distribution of daily percentage increases as well as decreases turns out to have a heavy tail, unlike the normal distribution, which coincides well with the general phenomenon appearing in the analysis of lots of nowaday nancial data.
Extreme value theory;Poisson-GPD method;crude oil spot price;West Texas Intermediate;
 Cited by
코스피 지수 자료의 베이지안 극단값 분석,윤석훈;

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