Price reversal and drift following earnings announcements

Systematic patterns in returns following earnings announcements are difficult to interpret. This study provides additional insights into the observation of price reversal and drift by examining the effects of both the method used to identify winners and losers and also the length of the subsequent period analyzed. The results show that both drift and reversal can be observed for the same sample and event. This evidence indicates that security price behavior following earnings announcements, especially in the short-term, depends not only on the earnings information, as in the drift studies, but also on the price reaction to the earnings information.     

Insider Trading and Earnings Management

Abstract:  This paper analyzes the relationship between earnings management and insider trading, specifically investigating whether discretionary accruals are related to insider trading and valuation. We find strong evidence of insiders managing earnings downward when buying and managing earnings upward when selling. On the marginal basis, value (high book-to-market value) firms manage their earnings upward compared to growth (low book-to-market value) firms, consistent with a signaling hypothesis. However, the opposite is true on the average basis, consistent with an opportunistic hypothesis.     

Does the Size Effect Explain the UK Winner-Loser Effect?

Dissanaike (1997) found a long-term winner-loser effect in the UK, within a sample of large (FT500) companies. However, he did not investigate as to whether there was a size effect within his sample, nor did he check to see if it subsumed his winner-loser effect. We find evidence of a size effect within the FT500 sample, and the size and winner-loser effects are not unrelated. But, there is no evidence to suggest that the size effect subsumes the winner-loser effect.     

Conditional Asset Pricing and Stock Market Anomalies in Europe

This study provides European evidence on the ability of static and dynamic specifications of the Fama‐French (1993) three‐factor model to price 25 size‐B/M portfolios. In contrast to US evidence, we detect a small‐growth premium and find that the size effect is still present in Europe. Furthermore, we document strong time variation in factor risk loadings. Incorporating these risk fluctuations in conditional specifications of the three‐factor model clearly improves its ability to explain time variation in expected returns. However, the model still fails to completely capture cross‐sectional variation in returns as it is unable to explain the momentum effect.     

Individual investors surpass their reputation: Trading behaviour on the Polish futures market

This paper examines individual investors’ trading behaviour by testing the presence of Monday and January anomalies on the Polish futures market, where individuals are the predominant trader type. Both anomalies are well established in the literature, and they are at least partially attributed to individual investors’ trading activities. We conduct an intraday analysis of trading volume, open interest, returns, and return volatility on the futures market in Poland and find the contribution of individuals to market anomalies to be grossly overstated. Hence, individual investors’ trading on the Polish futures market surpasses the prediction by the majority of investigations for mature stock markets.     

Strategies can be expensive too! The value spread and asset allocation in global equity markets

Is the value spread useful for forecasting returns on quantitative equity strategies for country selection? To test this, we examine a sample of 120 country-level equity strategies replicated within 72 stock markets for the years 1996–2017. The value spread is a powerful and robust predictor of strategy returns in the cross-section, subsuming other methods based on momentum, reversal, or seasonality. Going long (short) the strategies with the broadest (narrowest) value spread produces significant four-factor model alphas, markedly outperforming an equal-weighted benchmark of all of the strategies. The results are robust to many considerations.     

The Halloween Effect and Japanese Equity Prices: Myth or Exploitable Anomaly

Bouman and Jacobsen (American Economic Review 92(5), 1618–1635, 2002) examine monthly stock returns for major world stock markets and conclude that returns are significantly lower during the May–October periods versus the November–April periods in 36 of 37 markets examined. They argue that, in general, the Halloween strategy outperforms the buy and hold strategy thereby casting doubt on the validity of the efficient market paradigm. More recently, Maberly and Pierce (Econ Journal Watch 1(1), 29–46, 2004) re-examine the evidence for U.S. equity prices and conclude that Bouman and Jacobsen’s results are not robust to alternative model specifications. Extending prior research, this paper examines the robustness of the Halloween strategy to alternative model specifications for Japanese equity prices. The Halloween effect is concentrated in the period prior to the introduction of Nikkei 225 index futures in September 1986. After the internationalization of Japanese financial markets in the mid-1980s, the Halloween effect disappears.JEL classification: G14, G15     

Anomalies and Stated Preference Techniques: A Framework for a Discussion of Coping Strategies

This paper introduces a symposium on the issue of how stated preference (SP) research can best cope with ‘anomalies’ (i.e. systematic deviations from the predictions of standard economic theory) in survey responses. It proposes a framework for constructive debate, recognising (i) the legitimate aspirations of SP research, (ii) the relevance of evidence from sources other than best-practice SP, and (iii) the precautionary value of investigating strategies for coping with suspected anomalies, even if questions about the robustness of anomalies have not been finally resolved. Five alternative coping strategies, discussed in more detail in the symposium, are briefly introduced. JEL classifications: D61, D63, Q51     

Coping with Preference Anomalies in Cost–Benefit Analysis: A Market-Simulation Approach

This paper proposes a methodological strategy for cost–benefit analysis (CBA) which does not require the assumption that individuals’ preferences satisfy standard coherence conditions, and so renders CBA immune to the problems generated by preference anomalies. The proposal treats CBA as an exercise in market simulation, based on the measurement of surplus. Anomalies occur when surplus measurements vary according to the hypothetical payment mechanism used. In such cases, the mechanism that is the “closest market analogue” should be used. This approach is used to resolve problems associated with some familiar anomalies, including inconsistencies between “citizen” and “consumer” valuations, and endowment effects. JEL classifications: D61, D63, Q51