This article studies how financial investors respond to firms' corporate social responsibility (CSR) performance in terms of their investing behaviors, and how such behaviors change contingent on an event that provokes their attention and concerns to CSR. Using the melamine contamination incident in China as a natural experiment, it is found that neither the individual investors' nor the institutional investors' behaviors are influenced by firms' CSR performance before the incident. Nevertheless, in the post-event period, institutional investors' behaviors are significantly influenced (...) by firms' CSR performance that exceeds a certain threshold. Furthermore, such an effect diminishes for a better CSR performance. In comparison, the authors do not find any effects of CSR performance on individual investors, either before the event or after the event. Finally, firms' performance and investors' behaviors jointly affect firms' stock returns after the event but not before the event. This article reconciles the mixed findings in the literature on the effect of firms' CSR performance on their financial performance by showing that such an effect exists in a contingent manner. Furthermore, the authors show that a too low or a too high CSR performance could lead to undesirable responses from investors. Therefore, managers should pay attention to optimizing firms' CSR activities. (shrink)

A highly transmittable and pathogenic viral infection, COVID-19, has dramatically changed the world with a tragically large number of human lives being lost. The epidemic has created psychological resilience and unbearable psychological pressure among patients and health professionals. The objective of this study is to analyze investor psychology and stock market behavior during COVID-19. The psychological behavior of investors, whether positive or negative, toward the stock market can change the picture of the economy. This research explores (...) Shanghai, Nikkei 225, and Dow Jones stock markets from January 20, 2020, to April 27, 2020, by employing principal component analysis. The results showed that investor psychology was negatively related to three selected stock markets under psychological resilience and pandemic pressure. The negative emotions and pessimism urge investors to cease financial investment in the stock market, and consequently, the stock market returns decreased. In a deadly pandemic, the masses were more concerned about their lives and livelihood and less about wealth and leisure. This research contributes to the literature gap of investors’ psychological behavior during a pandemic outbreak. The study suggests that policy-makers should design a plan to fight against COVID-19. The government should manage the health sector’s budget to overcome future crises. (shrink)

The stock market’s reaction to information disclosure of environmental violation events (EVEs) is investigated multi-dimensionally for Chinese listed companies, including variables such as pollution types, information disclosure sources, information disclosure levels, modernization levels of the region where the company locates, ultimate ownership of the company, and ownership held by the largest shareholder. Using the method of event study, daily abnormal return (AR) and accumulative abnormal return (CAR) are calculated under different event window for examining the extent to which (...) the stock market responds to the EVEs. Furthermore, statistical significance of the difference in stock market reaction is compared between event firms with different characteristics. The relationship between CAR and its impact factors is examined by multivariate analysis. The findings reveal that the average reduction in market value is estimated to be much lower than the estimated changes in market value for similar events in other countries, demonstrating that the negative environmental events of Chinese listed companies currently have weak impact on the stock market. (shrink)

We study the impact of COVID-19 on Chinese stock market which can be seen as a complex system. We use the event study method to evaluate its performance change in terms of the return rate, turnover rate, etc. We show that the abnormal return of stock market was significantly negative after the outbreak of COVID-19 and did not turn positive until May 2020. Moreover, the five-factor model is used to estimate the ordinary returns of different (...) industries and show that abnormal returns for medical and food industries were significantly positive, while energy and public utility industries had significantly negative abnormal returns which persisted for a long time. COVID-19 had lag effects on clothes industry, finance industry, transportation industry, and IT industry. We also find that energy and finance industries had negative abnormal turnover rates during the sample period, while other industries, such as healthcare and telecommunications service industries, had positive abnormal turnover rates. (shrink)

Very few studies have investigated the movement in stock returns that result due to changes in oil prices. In recent years due to cooling down of China, unveiled oil reserves of Iran, decreasing demand worldwide and discovery of shale gases the world has experienced a large fall in the oil prices. These changes are also affecting performance of manufacturing and other associated companies in countries all over the world. Pakistan has also been affected by these changes in many (...) ways. Especially, the returns on stock markets have been affected a lot by the variations in the oil prices. This paper using monthly data set from years 2014 to 2016 of the non-financial firms operated in Pakistan Stock Exchange, investigates the effect of variation in oil prices on returns on stock. Results from the panel data analysis indicate a negative relationship between the variables. Since, Pakistan is an oil importing, movement in the prices contribute towards affecting the production cost in a positive manner which in turn affects the execution of the enterprises as well as returns of the stocks negatively. (shrink)

Daily returns of stock markets in 27 emerging markets in Asia, Africa, South America, and Eastern Europe from the early 1990s through 2006 are analyzed for the possible presence of nonlinear speculative bubbles. The absence of these is tested for by studying residuals of VAR-based fundamentals, using the Hamilton regime-switching model and the rescaled range analysis of Hurst. For the first test absence of bubbles is rejected for 24 countries (except Mexico, Sri Lanka, and Taiwan), and for the (...) second it is rejected for 26 (except Malaysia). BDS testing on residuals after ARCH effects are removed fails to reject further nonlinearity in the residual series for all countries. (shrink)

This study examines how the reference-point effect and sunk-cost fallacy interact with stakeholder theory and influence how investors evaluate corporate social performance. We propose that ex-ante (pre-IPO) corporate social performance influences ex-post (post-IPO) perceived riskiness and that this relationship is U-shaped. We also evaluate how CEO duality and company age moderate this U-shaped relationship. Using young and newly public entrepreneurial firms in China, and focusing on stock returns in the secondary market, empirical results and robustness tests provide (...) strong support for our hypotheses. (shrink)

Publication date: 28 April 2021 Source: International Letters of Social and Humanistic Sciences Vol. 90 Author: Sarah Kinya Mburugu Listing of a company in the securities exchange has been observed to be followed by underpricing in the first day and long term period of underperformance in terms of pricing in the subsequent days. Consequently, there has been a considerable curiosity from stakeholders, investors and academics to comprehend the assessments of why companies go public and the issues surrounding the short and (...) long-run performance of newly issued equities. Underpricing is necessary to induce uninformed investors to participate in IPO offering when faced with adverse selection from informed investors. This often leads to first day price not reflecting a fair value of the IPO. The objective of the study was to determine the long-run performance IPOs and effects in the Kenyan stock market for the period 2007-2014. A descriptive survey research design was employed in the study. The population of the study encompassed all the 64 listed companies at the NSE as at 2016. The study employed a non-probability purposive sampling technique. Data collected for this study was secondary data obtained from NSE website, NSE price lists and the Central Bank of Kenya website for the period 2007 to 2014. The data obtained was analyzed using Statistical Package for Social Science. Mean Average Buy and Hold Returns, Abnormal Returns and Cumulative Abnormal Returns were used to calculate the performance of the stocks. T-statistic for CAR was computed to the test for its significance. T-test was conducted at 95% confidence level to find if MABHR and CAR were statistically significant after IPOs announcement. (shrink)

The stronger the level of economic integration between countries, the greater the need to study the formation patterns of the stock market reaction to the financial information signals. This concerns the Ukrainian stock market, which is now in its infancy, and which reaction to financial information signals is sometimes ambiguous. The research aims to identify the formation patterns of return and volatility indicators of the Ukrainian stock market reaction to the US financial information signals. (...) To assess the direct nature of US financial information signals effect on the PFTS stock index, the GARCH econometric modeling toolkit was applied. The research information base is the PFTS stock index and the Federal Reserve System financial information signals at the discount rate for 2000–2019. The fetch is divided into intervals corresponded to the ascent and decline phases of the financial cycle. It was found that an unforeseen increase in the discount rate at the financial cycle decline phase by 25 basis points decreases the PFTS stock index return, on average by 2.9%. Besides, the hypothesis about the general change stabilizing effect in the discount rate on the Ukrainian stock market volatility at the financial cycle growth phase was confirmed. Nevertheless, for investors, the most essential is the regulator’s monetary signals in the discount rate at the financial cycle decline phases rather than at the ascent phases because there is a more significant increase in the volatility level. (shrink)

In this paper, we employ Weibo Index as the proxy for investor attention and analyze the relationships between investor attention and stock market performance, i.e., trading volume, return, and volatility. The empirical results firstly show that Weibo attention is positively related to trading volume, intraday volatility, and return. Secondly, there exist bidirectional causal relationships between Weibo attention and stock market performance. Thirdly, we generally find that higher Weibo attention indicates higher correlation coefficients with the quantile regression (...) analysis. (shrink)

The effect of COVID-induced public anxiety on stock markets, particularly in European stock market returns, is examined in this research. The search volumes for the notion of COVID-19 gathered by Google Trends and Wikipedia were used as proxies for COVID-induced public anxiety. COVID-induced public anxiety was shown to be linked with negative returns in European stock markets when a panel data method was used to a sample of data from 14 European stock markets (...) from January 2, 2020 to September 17, 2020. Using an automated trading system, we used this finding to suggest investment methods based on COVID-induced anxiety. The findings of back-testing indicate that these techniques have the potential to generate exceptional profits. These results have significant consequences for government officials, the media, and investors. (shrink)

Till now, comprehensive and quantitatively meaningful analyses of stock market participation outcomes of retail investors have been limited by data sources in developing countries. This article devised a special questionnaire related to stock investment to measure the financial literacy and stock investment return for the subjects with stockownership in China and to theoretically and empirically study the effects of objective FL, self-assessed FL, and their composite FL on SIR. The results of the comparative analysis showed that (...) self-assessed FL has a greater effect on SIR than objective FL, and the effect is mediated by risk preference. In addition, we found that competent and overconfident respondents have higher SIR, while under confident respondents cannot gain from the stock market. We also found that risk preference has a positive mediating effect in the relationship between competence and overconfidence and SIR, and a negative mediating effect in the relationship between under confidence and SIR. We thus concluded that confident investors can gain more stockholding returns via taking more risks regardless of the level of their actual financial knowledge. Our findings would be a meaningful complement to the studies of stock market participation. (shrink)

In this article, we studied the Corporate Sustainability Index (ISE) of the Brazilian Mercantile, Futures and Stock Exchange (BM&FBOVESPA), with the main objective of analyzing the performance of sustainable investments in the Brazilian stock market, during the period from December 2005 to December 2010. To achieve this aim, we characterized ISE portfolios and we compared its performance with the IBOVESPA (representing the market portfolio) and other BM&FBOVESPA sectoral indices. In the performance comparison, we used level of (...) liquidity, return and risk indicators, as well as the following measures: Sharpe, Treynor, Sortino, and Omega. Our results show that although sustainable investments have presented some interesting characteristics, such as increasing liquidity and low diversifiable risk, they did not achieve satisfactory financial performance in the analysis period. This indicates that the constraints imposed by this type of investment in capital allocation in Brazil may be harming their return and risk attractiveness. (shrink)

Ensuring access to clean water is one of the most important development and health challenges of the twenty-first century. Given the manifold impacts of business activities on water resources, corporate water actions should be of central concern to business ethics researchers. Yet so far we know too little about whether business activities that impact on water resources are noticed or how corporate water actions are valued by a firm’s stakeholders, including by financial markets. In response, we conduct an event study (...) to investigate the shareholder wealth effect of reports of corporate water actions. We explore stock market reactions to water actions by S&P 500 firms from 2005 to 2017, showing that the market reacts positively to reports of responsible water actions and negatively to irresponsible actions. We further explain that these abnormal returns to water actions are associated with a firm’s past performance on ethical issues, arguing that the reputational effects from prior corporate social responsibility and irresponsibility influence market reactions. Our analysis provides evidence that there are diminishing marginal returns to responsible water actions for firms with records of past responsibility and an offsetting effect for those with past irresponsibility. Similarly, we demonstrate an insurance effect that limits punishment for irresponsible water actions for firms with responsible performance records and diminishing negative marginal returns for those already seen to be irresponsible. This study is the first to show that shareholders recognize market value in corporate water actions and are prepared to award or punish firms in stock markets based on their impacts on water. (shrink)

This study examines two stock market anomalies and provides strong evidence of the day-of-the-week effect in the Chinese A-share market during the COVID-19 pandemic. Specifically, we examined the Quality minus Junk strategy return on Monday and FridayQuality stocks mean portfolio deciles that earn higher excess returns. As historical evidences suggest that less distressed/safe stocks earn higher excess returns.. The QMJ factor is similar to the division of speculative and non-speculative stocks described by Birru. Our findings (...) provide evidence that the QMJ strategy gains negative returns on Fridays for both anomalies because the junk side is sensitive to an elevated mood and, thus, performs better than the quality side of portfolios on Friday. Our findings are also consistent with the theory of investor sentiment which asserts that investors are more optimistic when their mood is elevated, and generally individual mood is better on Friday than on other days of the week. Therefore, the speculative stocks earned higher sustainable stock returns during higher volatility in Chinese market due to COVID-19. Intrinsically, new evidence emerges on an inclined strategy to invest in speculative stocks on Fridays during the COVID-19 pandemic to gain sustainable excess returns in the Chinese A-share market. (shrink)

Market inefficiency is a latent concept, and it is difficult to be measured by means of a single indicator. In this paper, following both the adaptive market hypothesis and the fractal market hypothesis, we develop a new time-varying measure of stock market inefficiency. The proposed measure, called composite efficiency index, is estimated as the synthesis of the most common efficiency measures such as the returns’ autocorrelation, liquidity, volatility, and a new measure based on the (...) Hurst exponent, called the Hurst efficiency index. To empirically validate the indicator, we compare different European stock markets in terms of efficiency over time. (shrink)

Source: Author: Mohsen Mehrara, Yazdan Gudarzi Farahani, Farzan Faninam, Abbas Rezazadeh Karsalari This paper examines the relationship between stock market index and macroeconomic policies on Iran's economy using quarterly data in the period 1999-2013. This study employed cointegration test and vector autoregressive models to examine relationships between the stock market index and the macroeconomic variables. The empirical results reveal that a positive money shock can increase stocks return. According to impulse responses, the government expenditure had a (...) slight impact on stocks return in the short term. But the government expenditure has a positive effect on exchange index in long run. Also the effect of taxes on the stock's price index is negative, so that it reaches its maximum level after the third lag and then alleviates. The GDP shock has positive effect on the stock's price index. Increase in production level leads to increase in earnings and profitability, leading to a positive response from stocks index. Therefore the results showed that the macroeconomic variables such as inflation, exchange rate and GDP have significant effects on Tehran exchange price index. So the hypothesis that the improving economic factors can have a useful role in the booming capital market is confirmed. Also the effect of fiscal policy factors such as tax revenues and government expenditures is more than monetary policy factors on stock returns. ]]>. (shrink)

The aim of this paper is to analyze the occurrence of the so called day of the week effects in market return time series from the period of January 2003 to September 2013. The study focuses on four indices of the Warsaw Stock Exchange and additionally five indices of major world stock exchanges. The main data sample was divided into three subperiods in order to determine whether or not the intensity of day of the week anomalies is (...) constant in time. The study revealed a substantial number of the day of the week anomalies in earliest subperiods and very limited evidence of those effects in later ones, giving rise to the conclusion that the intensity of the day of the week anomalies is diminishing with time. The most common effect identified on the WSE was a positive Friday effect. The Monday effect often described in early literature on the subject matter seems to currently occur very rarely. The study also indicates that the day of the week effects were more persistent among stocks with smaller market capitalization on the WSE. (shrink)

Emotions and feelings affect economic systems. This is well known as e.g. stock markets tend to react to sudden political and emotional events. However, the link between emotions, consciousness, and economic systems at a deeper level than the aggregate resulting action of people at large is yet to be explored and understood. In this paper, a first building block is presented as it is shown that a variable derived from the random numbers obtained by the Global Consciousness Project is (...) statistically related to various well-known stock market index returns. The relationship is shown to be non-linear and that variations in the variable, to some extent, predate the underlying trade. The results presented are found to be robust and qualitatively unaffected by the removal of outliers. Apart from the pure economic value of these findings, the results have truly baffling implications. This is the case as they confirm some previous unorthodox research suggesting that consciousness stretches out beyond the locally confined space of our heads and that consciousness can affect hardwaregenerated random numbers at a distance. Thus, these results put doubt on the existing paradigm with regards to consciousness and highlight the need for further research. (shrink)

Stock markets accurately reflect countries’ economic health, and stock returns are tightly related to economic indices. One popular area of financial research is the factors that influence stock returns. Several investigations have frequently cited macroeconomic factors, among numerous elements. Therefore, this study focuses on the empirical analysis of the relationship between macroeconomic factors and stock market returns. When a stock market becomes increasingly volatile, it becomes susceptible to economic uncertainty news, (...) and information on social media platforms. Thus, we incorporated a new dimension of economic uncertainty news sentiment for stock return predictions. We employed the daily data ofgold index, crude oil price, interest rate, exchange rate, and stock returns for a set of countries from January 2010 to December 2020. Subsequently, to compute coefficients, we conducted a regression analysis using one of the more sophisticated approaches: single-layer neural networks and ordinary least square regression. In addition, we only computed EUNS for the period of the fiscal budget announcement for the US, Turkey, and Hong Kong. The results indicate that the gold index, interest rate, and exchange rate are highly significant and negative macroeconomic factors for all analyzed countries. These findings also indicate that EUNS is important and detrimental for projecting stock returns. (shrink)

Using a sample of US stocks over the period 1991–2019, we test whether stocks with high exposure to a social index exhibit high returns. Using a univariate analysis, our in‐sample results show that stocks with high sensitivities to the MSCI KLD 400 Social Index underperform stocks with low sensitivities by an annual risk‐adjusted performance of 7.02%. The negative premium is also larger in the post‐crisis period of 2007–2019 and is equal to 10.25%. The out‐of‐sample results offer, however, only weak (...) evidence of such a finding, with a risk‐adjusted performance difference of merely −0.84% over the full sample period and no significant differences between the pre‐crisis and post‐crisis periods. In the multivariate regression, we find evidence of a negative relationship between exposure to the social index and stock performance. Moreover, we find that stocks with high exposure to the social index display a low corporate social responsibility score, a high Tobin’s Q, high long‐term debt, a large size, high total risk, a high market beta, a high SMB coefficient, a low HML coefficient, and a small MOM coefficient. (shrink)

As the stock market is an important part of the national economy, more and more investors have begun to pay attention to the methods to improve the return on investment and effectively avoid certain risks. Many factors affect the trend of the stock market, and the relevant information has the nature of time series. This paper proposes a composite model CNN-BiSLSTM to predict the closing price of the stock. Bidirectional special long short-term memory improved on (...) bidirectional long short-term memory adds 1 − tanh function in the output gate which makes the model better predict the stock price. The model extracts advanced features that influence stock price through convolutional neural network, and predicts the stock closing price through BiSLSTM after the data processed by CNN. To verify the effectiveness of the model, the historical data of the Shenzhen Component Index from July 1, 1991, to October 30, 2020, are used to train and test the CNN-BiSLSTM. CNN-BiSLSTM is compared with multilayer perceptron, recurrent neural network, long short-term memory, BiLSTM, CNN-LSTM, and CNN-BiLSTM. The experimental results show that the mean absolute error, root-mean-squared error, and R-square evaluation indicators of the CNN-BiSLSTM are all optimal. Therefore, CNN-BiSLSTM can accurately predict the closing price of the Shenzhen Component Index of the next trading day, which can be used as a reference for the majority of investors to effectively avoid certain risks. (shrink)

This study investigates performance of portfolios composed of British socially responsible investments (SRI) stocks. Using the ‘Global-100 Most Sustainable Corporations in the World’ list (known also as ‘Global-100’) to select the SRI companies, we found that, in the period 2000–2010, the returns of the SRI portfolios were on average higher compared with the corresponding returns of the market indexes. The annual average difference in returns of the SRI portfolios (with dividends) was 5.26 % and 5.69 % (...) relative to the FTSE100 and FTSE4GOOD indexes (the total return versions), respectively, but the differences in returns in the whole period, in individual years and in other sub-periods were in most cases not statistically significant. Positive performance of SRI stocks in the whole sample is, however, evidenced by risk-adjusted measures such as the modified Sharpe ratio (MSR) and certainty equivalent (CEQ) returns, as well as by incorporating various levels of transaction costs. Furthermore, a simple trading strategy relying on selection of SRI stocks from the Global-100 list would beat the market indexes in the whole period 2000–2010, even after inclusion of various levels of transaction costs. We also estimated the Fama–French and Carhart multi-factor models and found that the returns of the SRI portfolios cannot be consistently explained by conventional factors other than the market factor. (shrink)

This study examines the impact of corporate governance on the financial performance of Asia Pacific stocks in three Asian countries: Malaysia, Thailand and Singapore. By including a sample of 159 firms listed on three Asian stock markets from 2013 to 2017, this study found that the effects of corporate governance mechanisms vary significantly among the three Asian markets. Specifically, this study shows that board size has positively influenced listed firms' financial performance in the Singapore Exchange. However, our findings show (...) that board size has negatively affected listed firms' financial performance in Thailand's Stock Exchange. In addition, our results reveal that board independence has negatively influenced listed firms' financial performance in Bursa Malaysia. Finally, this study provides implications for regulatory authorities in the Asian stock markets to separate between chairman and CEO roles since most Asian firms are owned and directed by business families. (shrink)

The existing research aims to seek the herding effects on stock returns at the industry level in Pakistan Stock Exchange. Moreover, the relationship between stock returns and herding has been studied by taking some macroeconomic and fundamental control variables. Herding is actually imitating other’s behaviour. This phenomenon indicates a situation where the investors follow the crowed and ignores their personal information, despite knowing the correctness of their information. Herd behaviour may drive from fundamental factors leading (...) to efficient markets. However, it may not be associated with fundamental information causing unstable prices. The stock price data of PSX listed companies from 1999 to 2017 have been the point of focus. The underlying herding measure was the cross-sectional absolute deviation, proposed by Chang et al.. The significant analysis technique facilitating the current research is pooled mean group /panel autoregressive distributed lag approach. Findings revealed that some sectors are evident for positive effect of herding on stock returns, whereas some others are witnessed for its negative effects on stock returns, in both long run and short run. As far as the control variables are concerned, they demonstrated both significant and insignificant effects on stock returns in different sectors of PSX. The study has important implications for policymakers. (shrink)

In China, many firms advertise that they follow environmentally friendly practices to cover their true activities, a practice called greenwashing, which can cause the public to doubt the sincerity of greenization messages. In this study, I investigate how the market values greenwashing and further examine whether corporate environmental performance can explain different and asymmetric market reactions to environmentally friendly and unfriendly firms. Using a sample from the Chinese stock market, I provide strong evidence to show that (...) greenwashing is significantly negatively associated with cumulative abnormal returns around the exposure of greenwashing. In addition, corporate environmental performance is significantly positively associated with CAR around the exposure of greenwashing. Furthermore, my findings suggest that corporate environmental performance has two distinct effects on CAR around the exposure of greenwashing: the competitive effect for environmentally friendly firms and the contagious effect for potential environmental wrongdoers, respectively. The results are robust to various sensitivity tests. (shrink)

With more and more investors exerting their voices through network forums or social media platforms, the relationships between online investor sentiment and stock movements have drawn more and more attention. In this paper, we crawl stock comments from China’s most popular online stock forum, East Money, and then develop a sentiment classifier using the LSTM method. Using the online investor sentiment of the stock forum, we explore the effect of online investor sentiment on the stock (...) movements of CSI300. The results show that online investor sentiment has a significant positive impact on both stock return and trading volume and remains significant after controlling book-to-market ratio, BETA, and market value. Moreover, investor sentiment has a significant positive impact on order imbalance of big trade, which represents the main flow of money in the market. As a result, investor sentiment has a positive impact on the major fund flows in the market. In other words, an increase in investor sentiment can boost the major money flows in the market to some extent. From a practical point of view, investor sentiment can assist investors to make investment decisions and help the government to regulate the stock market. (shrink)

The conventional wisdom is that any trading scheme that is not for investment purposes but, rather, for the purpose of inflating or deflating the market price, namely, manipulation, is fraudulent. This paper treats manipulation as a form of communication between the manipulator and the market. As with any communication, it may sometimes be fraudulent, but often it is based on the manipulator’s knowledge, or genuine belief, that a certain stock is being traded at a discount. Under the (...) assumptions of the CAPM, such an informed party should use this information to trade for investment purposes only, but liquidity and risk constraints, which are ignored by the CAPM, often do not allow him to invest; instead these constraints force him to bid the market up. The manipulator’s effect on the market arouses analyst attention and induces the market to update its evaluation of the firm’s value. The more liquid the market, the faster the market updates its evaluation of the firm’s value, and thus the greater the value to the manipulator if his scheme is based on information. I support this theoretical claim with an empirical study of stock manipulation indictments brought by the Israeli Securities Agency during the last decade. The study treats each indictment as a competition between two rival analysts: the Agency, which recommends a “hold” at the pre-manipulation price and a “sell” at the post-manipulation price, and the manipulator, who recommends a “buy” at the pre-manipulation price and a “hold” at the post-manipulation price. Examining the long-run performance of the forty-five stocks that were the subjects of the indictments, I find that investors could gain by following the advice of the Agency. However, the long-run performance of the twenty-two most liquid stocks shows that these stocks experienced a significant positive abnormal return. This finding provides support for my claim that information is a driving force behind many manipulative schemes, especially those that are conducted in liquid markets. (shrink)

The efficient markets hypothesis has been the central proposition in finance for nearly thirty years. It states that securities prices in financial markets must equal fundamental values, either because all investors are rational or because arbitrage eliminates pricing anomalies. This book describes an alternative approach to the study of financial markets: behavioral finance. This approach starts with an observation that the assumptions of investor rationality and perfect arbitrage are overwhelmingly contradicted by both psychological and institutional evidence. In actual financial markets, (...) less than fully rational investors trade against arbitrageurs whose resources are limited by risk aversion, short horizons, and agency problems. The book presents and empirically evaluates models of such inefficient markets. Behavioral finance models both explain the available financial data better than does the efficient markets hypothesis and generate new empirical predictions. These models can account for such anomalies as the superior performance of value stocks, the closed end fund puzzle, the high returns on stocks included in market indices, the persistence of stock price bubbles, and even the collapse of several well-known hedge funds in 1998. By summarizing and expanding the research in behavioral finance, the book builds a new theoretical and empirical foundation for the economic analysis of real-world markets. (shrink)

Machine learning methods have been used in multifactor stock strategy for years. This paper uses three machine learning methods and linear regression method to find the most appropriate approach. First, a framework is established and 10 style factors and 30 industry factors are chosen. Second, four methods are used to forecast portfolio returns and compared by predicting returns, successful rate, and Sharpe ratio. Finally, this paper draws conclusion. The main findings are as follows: the support vector regression (...) has the most stable successful rate for predicting, while ridge regression and linear regression have the most unstable successful rate with more extreme cases; algorithm of support vector regression fitting higher-degree polynomials in Chinese A-share market is optimized, compared with the traditional linear regression both in terms of stock return and retracement control; the results of support vector regression significantly outperforming the CSI 500 index prove further. (shrink)

The efficient markets hypothesis has been the central proposition in finance for nearly thirty years. It states that securities prices in financial markets must equal fundamental values, either because all investors are rational or because arbitrage eliminates pricing anomalies. This book describes an alternative approach to the study of financial markets: behavioral finance. This approach starts with an observation that the assumptions of investor rationality and perfect arbitrage are overwhelmingly contradicted by both psychological and institutional evidence. In actual financial markets, (...) less than fully rational investors trade against arbitrageurs whose resources are limited by risk aversion, short horizons, and agency problems. The book presents and empirically evaluates models of such inefficient markets. Behavioral finance models both explain the available financial data better than does the efficient markets hypothesis and generate new empirical predictions. These models can account for such anomalies as the superior performance of value stocks, the closed end fund puzzle, the high returns on stocks included in market indices, the persistence of stock price bubbles, and even the collapse of several well-known hedge funds in 1998. By summarizing and expanding the research in behavioral finance, the book builds a new theoretical and empirical foundation for the economic analysis of real-world markets. (shrink)

We examine whether investors value the disclosure of first-time standalone corporate social responsibility reports, and whether market valuations differ between government-controlled and privately controlled firms. Using a matched sample of Chinese publicly listed firms, we find that CSR initiators have higher market valuations than matched CSR non-initiators, and CSR initiators controlled by the central and local governments have lower market valuations than CSR non-initiators and CSR initiators controlled by private shareholders. Additional analyses demonstrate that CSR initiators with (...) high CSR reporting quality and perceived credibility have higher market valuations than CSR initiators with low CSR reporting quality and medium or low perceived credibility of CSR reporting. We do not find convincing evidence that CSR mandate, litigation risk, and prior stock returns affect market reactions to CSR reporting. Overall, we find that the market values standalone CSR reports, and that CSR reporting quality and perceived credibility are important factors in market valuation. (shrink)

The novel coronavirus (COVID-19) has imperatively shaken the behavior of the global financial markets. This study estimated the impact of COVID-19 on the behavior of the financial markets of Europe and the US. The results revealed that the returns of the S&P 500 index have been greatly affected by a lockdown in the US owing to COVID-19. However, the health crisis generated due to the novel coronavirus significantly decreased the stock returns of the Nasdaq Composite index. The (...) results also showed that the economic crisis generated from the pandemic in Spain has had more impact on the IBEX 35 as compared to the health crisis itself. On the other hand, in the long-run, Italy’s stock markets are more affected by the health crisis as contrasted with the economic crisis, while, in the short-run, both lockdown conditions and economic instability lower the stock returns of FTSE MIB. The UK stock markets witnessed that in the short-run, deficiency of health management systems imperatively damaged the stock returns of the London Stock Exchange. The investigation revealed that deficiency of health systems and lockdown conditions have imperatively damaged the structure of financial markets, inferring that sustainable development of these nations is at risk due to COVID-19. The study suggested that governments should allocate more of their budget to the health sector to overcome a health crisis in the future. (shrink)

The purpose of the study is to investigate the features of the algorithm for forming the stock portfolio of investors using the theory of fuzzy sets, taking into account a priori uncertain input information and market dynamics. The scientific novelty of the article lies in the application of a relatively new fuzzy-multiple apparatus and the theory of fuzzy sets to the formation of the stock portfolio of investors. From a practical point of view, the proposed fuzzy model (...) makes it possible to predict not only the structure and expected return of a portfolio of securities, similarly to the application of the classical portfolio theory, but also to obtain the values of the lower and upper boundaries of the return on securities, which will allow the investor to form a more complete picture of the structure of the portfolio in the future. As a result, it was found that the use of classical statistical approaches for the formation of a stock portfolio of investors will not allow obtaining a reliable and accurate result, since traditional methods do not take into account the uncertainty factors of events in the stock market. To level information asymmetry and eliminate risks of uncertainty, it is advisable to apply the theory of fuzzy logic. (shrink)

This article investigates whether investors consider the reliability of companies’ sustainability information when determining the companies’ market value. Specifically, we examine market reactions (in terms of abnormal returns) to events that increase the reliability of companies’ sustainability information but do not provide markets with additional sustainability information. Controlling for competing effects, we regard companies’ additions to an internationally important sustainability index as such events and consider possible determinants for market reactions. Our results suggest that first, investors (...) take into account the reliability of sustainability information when determining the market value of a company and second, the benefits of increased reliability of sustainability information vary cross-sectionally. More specifically, companies that carry higher risks for investors (e.g., higher systematic investment risk, higher financial leverage, and higher levels of opportunistic management behavior) react more strongly to an increase in the reliability of sustainability information. Finally, we show that the benefits of an increase in the reliability of sustainability information are higher in times of economic uncertainty (e.g., during economic downturns and generally high stock price volatilities). (shrink)

Economists have always recognised that human endeavours are constrained by our limited and uncertain knowledge, but only recently has an accepted theory of uncertainty and information evolved. This theory has turned out to have surprisingly practical applications: for example in analysing stock market returns, in evaluating accident prevention measures, and in assessing patent and copyright laws. This book presents these intellectual advances in readable form for the first time. It unifies many important but partial results into a (...) satisfying single picture, making it clear how the economics of uncertainty and information generalises and extends standard economic analysis. Part One of the volume covers the economics of uncertainty: how each person adapts to a given fixed state of knowledge by making an optimal choice among the immediate 'terminal' actions available. These choices in turn determine the overall market equilibrium reflecting the social distribution of risk bearing. In Part Two, covering the economics of information, the state of knowledge is no longer held fixed. Instead, individuals can to a greater or lesser extent overcome their ignorance by 'informational' actions. The text also addresses at appropriate points many specific topics such as insurance, the Capital Asset Pricing model, auctions, deterrence of entry, and research and invention. (shrink)

This article examines whether and how the participation of women in the firm’s board of directors and senior management enhances financial performance. We use the Fama and French (1992, 1993) valuation framework to take the level of risk into consideration, when comparing firm performances, whereas previous studies used either raw stock returns or accounting ratios. Our results indicate that firms operating in complex environments do generate positive and significant abnormal returns when they have a high proportion of (...) women officers. Although the participation of women as directors does not seem to make a difference in this regard, firms with a high proportion of women in both their management and governance systems generate enough value to keep up with normal stock-market returns. These findings tend to support the policies currently being discussed or implemented in some countries and organizations to foster the advancement of women in business. (shrink)

This study investigates the financial effects of additions to and deletions from the most well-known social stock index: the MSCI KLD 400. Our study makes use of the unique setting that index reconstitution provides and allows us to bypass possible issues of endogeneity that commonly plague empirical studies of the link between corporate social and financial performance. By examining not only short-term returns but also trading activity, earnings per share, and long-term performance of stocks that are involved in (...) these events, we bring forward evidence of a ‘social index effect’ where unethical transgressions are penalized more heavily than responsibility is rewarded. We find that the addition of a stock to the index does not lead to material changes in its market price, whereas deletions are accompanied by negative cumulative abnormal returns. Trading volumes for deleted stocks are significantly increased on the event date, while the operational performances of the respective firms deteriorate after their deletion from the social index. (shrink)

Fossil fuel divestment movements have gained momentum since 2011, aimed at ending fossil fuel use and a move toward a cleaner, affordable, and sustainable energy system, for business and society. The present study investigates the direct impact of fossil fuel divestment announcements on stock prices of firms listed on the United States' stock exchanges. Using an event study and guided by the United Nation's sustainable development goals (SDGs), we test the effects of 116 divestments announcements between 2014 and (...) 2019 on 51 publicly traded fossil fuel companies. Our results suggest that there is a negative effect of these announcements on fossil fuel firm stock prices. Also, we find that the type of fossil fuel firm (coal or oil and gas), the type of divestment (partial, coal only, or full), the timing of the announcement, and the size of the divesting investor have some explanatory power in relation to the (cumulative) abnormal returns following the divestment announcements. While the negative impact on stock prices is not surprising, the reaction from the divested firms after such large divestitures is not consistent with what may be expected, given past reactions to divestitures seeking to achieve different social goals. Given the SDGs, it seems clear why investors are divesting themselves from fossil fuel firms, but why has the reaction to the 116 divestments led to very little change in the way these publicly traded fossil fuel firms do business given their direct and growing impacts on society? We conclude the study with some suggestions for future research. (shrink)

The study aims to explore the role of gender diversity in debt financing choices among Chinese listed firms. The study used the Chinese listed firm's data from 1991 to 2022 from the Chinese Stock Market return. The study used the fixed effect regression analysis and revealed that gender diversity positively affects debt financing among Chinese firms. Additionally, mass theory results suggested that at least three females on the board significantly influence firms. It served as the voice of gender (...) diversity to influence the board's decisions regarding debt financing. The study has several theoretical and practical implications. This study will enlighten the Chinese boardroom dynamics by reassuring them to add more females to diversity policies. It will benefit future studies on boardroom activities and debt financing in emerging economies. It will be practical guidance for the Chinese policymakers, governing authorities, and corporate executives. The study stresses the need for significant diversity on the board rather than one female presence on the board. Secondly, this study contradicts the stereotype perception that females are not making risky decisions. (shrink)

This paper argues the case that tests of how investors value corporate social performance (CSP) based upon realised stock market returns are liable to be weak tests if markets are efficient and firms change CSP policies infrequently. We provide a theoretical explanation of why this will be the case using examples to illustrate. Subsequently, we set out an alternative theoretical framework for the purposes of investigating whether markets place a positive, or a negative, valuation on CSP, and (...) show why this is superior to tests based upon Tobin’s Q. Using US KLD data, we demonstrate that, as theorised, markets place a positive value on CSP that is not detected by conventional returns-based tests. Our conclusion is that researchers who are interested in the question of whether engagement with a corporate social responsibility agenda is a value-enhancing activity for a company (as argued by some stakeholder theorists) or value destructive (as argued by Friedman, The social responsibility of business is to increase its profits, The New York Times Magazine, 1970), need to look beyond returns-based tests to answer the research question posed. (shrink)

This paper addresses the impact of the unethical business conduct of a few individuals that shook the financial market in 1986. Specifically, in the study undertaken for this paper, the wealth status of the shareholders of securities firms was examined in relation to the public disclosure of the insider-trading scandals involving Dennis Levine, Ivan Boesky, and their confederates. It was hypothesized that the expected market-adjusted stock returns for the securities firms would be negative as a result (...) of the scandals. The findings of the study supported the hypothesis. (shrink)

Research focusing on the relationship between measures of Corporate Social Responsibility and company financial performance has led to mixed results in the North American context. In addition, the ethical attitudes and approaches toward CSR investments of both companies and rating agencies are not necessarily the same in Europe and the United States. In this study, we use CSR ratings issued by a major European CSR ratings agency to examine in a bi-directional manner the relationships between CSR ratings and financial performance (...) in the European context. By bi-directional, we mean an examination of the relationship between prior CSR ratings and subsequent accounting and financial performance and reciprocally, the impact of accounting and financial performance of year N − 1 on CSR ratings of year N. Our principal findings are: the greater the market capitalization of a company, the higher the Vigeo rating, the higher the risk of the company, the lower the Vigeo rating, and the greater the stock market return of a company, the lower the Vigeo rating. Based on these findings, we propose a concept of “political visibility” pursuant to which enterprises of a greater size are exposed to greater pressure to conform to norms of socially acceptable behavior, a concept of “priorities” in which enterprises that have resolved their most urgent financial needs have a greater ability to invest in CSR, a concept of “rating downgrading” which reveals the sanctioning role of the rating agency from an ethical standpoint. (shrink)

This study adds to the empirical evidence supporting a significant connection between ethics and profitability by examining the connection between published reports of unethical behaviour by publicly traded U.S. and multinational firms and the performance of their stock. Using reports of unethical behaviour published in the Wall Street Journal from 1989 to 1993, the analysis shows that the actual stock performance for those companies was lower than the expected market adjusted returns. Unethical conduct by firms which (...) is discovered and publicized does impact on the shareholders by lowering the value of their stock for an appreciable period of time. Whatever their views on whether ethical behaviour is profitable, managers should be able to see a definite connection between unethical behaviour and the worth of their firm's stock. Stockholders, the press and regulators should find this information important in pressing for greater corporate and managerial accountability. (shrink)

As corporate managers interact with nonshareholder stakeholders, potential tradeoffs emerge and questions arise as to how these interactions impact shareholder value. We argue that this shareholder—stakeholder debate is an important issue within the overall corporate governance and corporate policy domain and examine one such stakeholder group - employees - by studying labor-friendly corporate practices. We find that announcements of labor-friendly policies are associated with positive abnormal stock returns. Labor-friendly firms also outperform otherwise similar firms, both in terms of (...) long-run stock market returns and operating results. In addition, we find that the probability and benefits of labor-friendliness increase with the demand for highly skilled labor. Our analysis of excess executive compensation suggests that top management derives no pecuniary benefits from labor-friendly practices. We interpret our results as consistent with a genuine concern for employees translating into higher productivity and profitability, which in turn facilitate value creation. It appears that the benefits of labor-friendly practices significantly outweigh the costs and that what is good for employees is good for shareholders. (shrink)

We provide evidence on the effects of criminal/corrupt politicians on firm performance and investments in their constituencies. Using a regression discontinuity approach, we focus on close parliamentary elections in India to establish a causal link between election of criminal-politicians and firms’ stock-market performance and investment decisions. Election of criminal-politicians leads to lower election-period and project-announcement stock-market returns for private-sector firms with economic ties to the district. There is a significant decline in total investment and employment (...) by private-sector firms in criminal-politician districts. Interestingly, decline in private-sector investment is largely offset by a roughly equivalent increase in investment by state-owned firms. (shrink)

The stock market reaction to two very different corporate social investments is explored. A market model event study methodology is employed using daily stock returns. The results are that the stock market appears to have ignored the 1977 announcement, but rewarded the 1990 event. Future research and possible managerial implications are discussed.

Prior research suggests that corporate credibility is associated with firm financial performance in developed countries. This article examines whether corporate credibility is related to firm performance using Economic Observer's rating of corporate credibility in China, the largest emerging market in the world. Based on a four-stage valuation model, we find that more reputable and credible firms outperform those with low ratings by almost 20% in 3-year stock returns and have better 3-year net profit margins, return on equity, (...) and sales growth. This study is the first to directly examine the relationship between corporate credibility and firm performance in emerging markets such as China, and our results confirm that firms with high credibility exhibit better financial and market performance at least in the following 3 years. (shrink)

Islamic equity funds are subject to the screening criteria for stock selection imposed by the principles of Islamic jurisprudence. Equities must pass three basic screens: revenue source, business activity, and financial factors to be included in an Islamic fund. However, screening criteria are not universal especially for the financial factors. One can use financial ratios based on either the book-value of total assets or the market-value of equity for screening of stocks. This may not only result in a (...) different portfolio composition but also entail diverse rebalancing and monitoring costs. The performance of 29 Islamic equity indices versus conventional indices from four major international index providers using different Shari’ah screening criteria are analyzed in a single as well as in a multi-equation framework. The use of a multi-equation framework has the added advantage of utilizing the information content of different screening criteria adopted by different index providers. The empirical findings suggest that the difference in screening criteria does not significantly affect the performance of IEIs. Returns deviation, if any, stems from the relative riskiness of the IEI as compared with the relevant benchmark. Work needs to done to streamline the quantitative screening criteria to avoid confusion among the investing public. (shrink)

We examine whether gender-diverse boards prioritize product market concerns over capital market incentives when proprietary costs are high. We argue that gender-diverse boards protect their firm’s competitive edge and maximize long-term shareholder wealth by ethically and carefully maintaining the confidentiality of proprietary information. Due to the reduced disclosure of proprietary information, firms with gender-diverse boards are likely to face more adverse selection when proprietary costs are high. However, the reduced disclosure of proprietary information enables firms with gender-diverse boards (...) to enhance and maintain their competitive edge and gain higher long-term returns. Using a matched sample of the United States-listed companies, we find that firms with gender-diverse boards, relative to similar firms with all-male boards, (1) are associated with higher adverse selection costs and (2) higher long-run stock returns when the firm faces high product market competition. Collectively, our results suggest that firms with gender-diverse boards, which initially experience higher adverse selection in a competitive environment, are rewarded with a net gain of about 10 percent of their stock price in three years. Our research contributes to the literature by highlighting the importance of board gender diversity in fostering the ethical redaction of proprietary information for proprietary cost-based motives as opposed to agency cost-based motives. Our findings have important implications for regulators, firms, and shareholders by identifying gender-diverse boards as an antecedent for the ethical redaction of proprietary information. (shrink)