Home

2025年4月8日-伢途加速器官网

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.

2025年4月8日-伢途加速器官网

2025年4月8日-伢途加速器官网

landeng破解版安卓版2025  佛跳墙2025版  萝卜加速器电脑版下载,萝卜加速器免费永久加速,萝卜加速器2025,萝卜加速器vpm  豆荚加速器最新版,豆荚加速器官方网址,豆荚加速器2025,豆荚加速器vpm  2025手机可用翻墙梯子  MCloud用不了了,MCloud打不开,MCloud2025年,MCloud不能用了  2025还能用的梯子  云墙加速器安卓下载,云墙加速器永久免费加速,云墙加速器2025年,云墙加速器vps