Home

TTCl(机场)官网-outline

Calendar effects (sometimes less accurately described as ‘seasonal effects’) are cyclical anomalies in returns, where the cycle is based on the calendar. The most important calendar anomalies are the January effect and the weekend effect. The following books include sections on calendar effects: Thaler (1992), Siegel (1998), Lofthouse (2001), Constantinides, Harris and Stulz (2003), Singal (2004) and Taylor (2005). Relevant papers include Lakonishok and Smidt (1988), Hawawini and Keim (1995), Mills and Coutts (1995) and Arsad and Coutts (1997).

Sullivan, Timmermann and White (2001) highlight the dangers of data mining calendar effects and point out that using the same data set to formulate and test hypothese introduces data-mining biases that, if not accounted for, invalidate the assumptions underlying classical statistical inference. They show that the significance of calendar trading rules is much weaker when it is assessed in the context of a universe of rules that could plausibly have been evaluated. They are correct to highlight the dangers of datamining, but don't mention the fact that classical statistical inference is already flawed. A more useful reality check is to remember that a surprising result requires more evidence, Bayesian reasoning makes this clear.
P(hypothesis) = prior belief * strength of evidence
So, for example, it is quite rational to require more evidence for a lunar effect than a tax-loss selling effect.

Many calendar effects have diminished, disappeared altogether or even reversed since they were discovered.

TTCl(机场)官网-outline

TTCl(机场)官网-outline

云速代挂官网,苹果加速器七天试用,速云加速器,红速加速器官网  原子加速器apk,原子加速器app下载,原子加速器下载,加速器国外免费版  速云加速器,云速接码官网,外网加速神器,云速加速器ios  pigcha加速器怎么样,pigcha加速器好用吗,pigcha加速器怎么用,国外平台加速器  不收费的加速器,可以上twitter的加速器,加速器爬墙海外,海豚加速器手机版  Chiselwall加速器下载地址,Chiselwall加速器电脑版下载,Chiselwall加速器npv,Chiselwall加速器vpm  彗星加速器pc版下载,彗星加速器npv,彗星加速器免费永久加速,彗星加速器永久免费加速  蓝鲸加速器最新版,蓝鲸加速器pc版下载,蓝鲸加速器npv,蓝鲸加速器用不了了