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As in quantum field theory the "fat tails" can be obtained by complicated "[[nonperturbative]]" methods, mainly by numerical ones, since they contain the deviations from the usual [[Gaussian distribution|Gaussian approximations]], e.g. the [[Black–Scholes model|Black–Scholes]] theory.  Fat tails can, however, also be due to other phenomena, such as a random number of terms in the central-limit theorem, or any number of other, non-econophysics models. Due to the difficulty in testing such models, they have received less attention in traditional economic analysis.
 
As in quantum field theory the "fat tails" can be obtained by complicated "[[nonperturbative]]" methods, mainly by numerical ones, since they contain the deviations from the usual [[Gaussian distribution|Gaussian approximations]], e.g. the [[Black–Scholes model|Black–Scholes]] theory.  Fat tails can, however, also be due to other phenomena, such as a random number of terms in the central-limit theorem, or any number of other, non-econophysics models. Due to the difficulty in testing such models, they have received less attention in traditional economic analysis.
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正如在量子场论中一样,“肥尾”可以通过复杂的'''<font color="#ff8000">非微扰 nonperturbative</font>'''方法得到,主要是通过数值方法,因为它们包含了通常的'''<font color="#ff8000"> 高斯近似Gaussian approximations</font>'''的偏差,例如:'''<font color="#ff8000">布莱克-斯科尔斯 Black–Scholes</font>'''理论。然而,肥尾也可能是由其他现象引起的,比如中心极限定理中的随机项数,或者其他任何非经济物理学模型。由于这些模型难以检验,因此在传统的经济分析中很少受到重视。
    
==See also==
 
==See also==
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