reversal effect

reversal effect

The theory that stock prices overreact to relevant news so that extreme investment performance tends to reverse itself. Some studies indicate that short-term overreaction may lead to long-term reversals as investors recognize and correct past pricing errors.
References in periodicals archive ?
In vitro study results also suggest that the reversal effect of idarucizumab on dabigatran is not affected by the presence of coagulation factor concentrates
At the same time, in spite of the reliability of the partial-whole reversal effect after criterion training that animals learn the partial reversal more rapidly than the whole (Nakagawa, 1978, 1986, 1992, 1998, 1999a, 2000), it remains unclear whether the effect is caused by a facilitation of the partial condition, and a retardation in the whole condition, or a combination of the two effects.
Eric Bornstein, Chief Science Officer of Nomir, said, "After two years of intensive in vitro studies with Noveon that demonstrated its resistance reversal effect on MRSA when tested with generic methicillin, penicillin, erythromycin, tetracycline and bacitracin at physiologic temperatures, our team has now duplicated the phenomenon in an IRB-approved human pilot study.
In addition, the reversal effect of SAA on paclitaxel resistance in MCF-7/PTX cells and underlying mechanism will be investigated.
Thus, cue-associations theory predicts a large positive overtraining reversal effect (ORE) in the whole condition.
The reversal effect was sustained for more than 24 hours for all doses of 2g and above.
In our study, both tetrandrine and fangchinoline not only showed a remarkable reversal effect in P-gp overexpressing Caco-2 and CEM/ADR5000 cells but also in sensitive parental cells.
Nakagawa (1992) has examined the whole-partial reversal effect of overtraining in concurrent discriminations and assessed the effect against single discrimination training in rats.
In addition, the reversal effect of paeonol on paclitaxel resistance in MCF-7/PTX cells and underlying mechanism were investigated.
In essence, is there a reversal effect in the stock market, and what is the time frame one needs to consider?
Three experiments have examined whether a whole-partial reversal effect is due to shift in reinforcement density across phases, between whole and partial reversal in both matching (or nonmatching) -to-sample discriminations using 12 different stimulus sets (Experiments 1 and 2) and three concurrent discriminations (Experiment 3).
We analyzed the reversal effect of guggulsterone on K562/IMA cells, and the possible involvement of COX-2 in the development of resistance to imatinib.