Home

tom加速器打不开-雷霆加器速

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.

tom加速器打不开-雷霆加器速

tom加速器打不开-雷霆加器速

云梯加速器最新版,云梯加速器vqn,云梯加速器免费永久加速,云梯加速器vn  迷雾通下载地址,迷雾通npv,迷雾通免费永久加速,迷雾通vps  v2ray官网官方网址,v2ray官网免费试用,v2ray官网跑路了,v2ray官网2024  天极加速器mac下载,天极加速器vnp,天极加速器免费试用,天极加速器vqn  蚂蚁vp加速器官网最新版,蚂蚁vp加速器2024,蚂蚁vn加速器,2024版  月付加速器mac下载,月付加速器vqn,月付加速器免费试用,月付加速器vn  Mik安卓下载,Mikvnp,Mik2024,Mik不能用了