This paper investigates the properties of South African stock returns and the underlying variance. The investigation into the properties of stock returns and the behaviour of the variance underlying ...returns is undertaken using model-free approaches and through the application of ARCH/GARCH models. The results indicate that, as with other stock markets, returns on the South African stock market depart from normality and that variance displays evidence of heteroscedasticity, long memory, persistence, and asymmetry. Applying the EGARCH(p,q,m) and IGARCH(p,q) specifications confirms these findings and the application of these models suggests differing characteristics for variance structures underlying the South African stock market. In light of the findings relating to the properties of stock returns and the characteristics of variance and its structure, implications are outlined, and recommendations on how time-series specifications may be estimated are made.
The COVID-19 pandemic has caused extreme volatility in financial markets globally. During periods of extreme volatility, investors tend to exhibit herd behaviour. However, herd behaviour results in ...market anomalies, which causes incorrect valuations and pricing. Hence, the objective of this study is to test whether COVID-19 has induced herd behaviour in South Africa’s stock market. To achieve this objective, the FTSE/JSE Top 40 Index is used as a proxy for stocks trading on the Johannesburg Stock Exchange. The cross-sectional absolute deviation (CSAD) methodology is employed, and the sample period ranges from July 3, 2017 to June 30, 2021 with March 5, 2020 dividing the pre- and post-COVID-19 periods. The results suggest an absence of herd behaviour in the FTSE/JSE Top 40 Index during the full, pre- and post- COVID-19 sample periods. Therefore, this study concludes that the COVID-19 pandemic has not induced herd behaviour in the South African stock market. This could indicate that stock investors on the JSE follow their own thought and decision-making processes in periods of extreme volatility. Moreover, this may suggest that the South African stock market is efficient and that investors execute rational and well-thought out trades.
Purpose: This study aims to investigate the determinants of financial performance in the food and beverage sector of South Africa, focusing on 11 listed companies on the Johannesburg Stock Exchange. ...Methodology: The study employs panel data regression analysis using secondary data sourced from the Integrated Real-time Equity System (IRESS) Library, covering the period from 1988 to 2017. Return on assets (ROA) is used as the performance indicator, while the explanatory variables include debt ratio, cash conversion cycle, leverage, labour, and capital. Results: The study’s findings reveal that labour and capital are statistically significant determinants of financial performance in the food and beverage sector of South Africa. On the other hand, debt ratio, cash conversion cycle, and leverage have an insignificant impact on the firms' performance. Theoretical contribution: This study contributes to the literature on the determinants of financial performance in the food and beverage sector, particularly in the context of South Africa. The findings highlight the importance of labour and capital as key factors influencing financial performance in the sector. Practical implications: The study's results have practical implications for managers and stakeholders in the food and beverage sector of South Africa. It is recommended that firms in the sector pay more attention to labour and capital as these variables have proven to be strong determinants of financial performance.
This paper identifies the extent of air pollution in motivating companies to implement environmental management accounting (EMA) practices in 67 mining and cement companies listed on the Johannesburg ...Stock Exchange (JSE), South Africa, from 2012 to 2021. Pooled ordinary least squares regression is applied to analyse the data. EMA is proxied by environmental training, environmental audits and energy efficiency, while air pollution is measured based on the air quality index (AQI). The results show that air pollution is essential for companies to adopt EMA practices. This means that when air quality declines within a company’s locality, a company proactively adopts EMA practices. This suggests that air pollution is a key basis of companies' adoption of EMA, as predicted by the legitimacy theory. The study includes three control variables: size, return on assets (ROA) and number of years listed on JSE. Two control variables, namely Size and ROA, portray a positive and significant effect on adopting EMA from air pollution. This portrays that a financially stable company tends to submit to air pollution and use EMA to counter the pollution. In contrast, as the number of years increases for companies listed on JSE, EMA will likely be adopted less to reduce air pollution.
The research paper examines the effects of forecasting on the financial statement adjustment for retail stores in KwaZulu-Natal, South Africa. The study used quantitative design method. A ...questionnaire was designed for this study and 200 copies were issued to five respondents per retail store in each of the two different branches of the 20 stores in KwaZulu-Natal listed on the Johannesburg Stock Exchange. The Exploratory Factor Analysis was employed in this study. Furthermore, a regression test was prepared to estimate the effect of the independent variable on the dependent variable. The findings showed that pricing and inventory forecasting cause financial statements adjustment in retail stores. Thus, it was concluded that retail store forecasts will influence the business flow cycle if mismanaged. To have more reliable financial statements, adjustments have to be made accordingly. Smooth operations in retail is highly dependent on future predictions.
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•DCC-GARCH confirmed positive Rényian’s transfer entropy between BRVM and ESG stock.•CEEMDAN deposed the returned series into nine intrinsic mode functions and a residual.•Rényian’s ...transfer entropy showed a mixture of significant and insignificant values.•Low effective Rényian’s transfer entropy values indicate African stocks are less integrated.•Diversification can happen in the long term between BRVM and ESG stocks.
This paper seeks to analyze the information flow between the Bourse Régionale des Valeurs Mobilières (BRVM) and Environmental, Social, and Governance (ESG) stocks, focusing on the time and frequency domains. By studying these aspects, we aim to gain a deeper understanding of how information is transmitted between BRVM and ESG stocks, shedding light on the dynamics and interactions within this context. The study analyzes the decomposed daily returns of four indices: BRVM Composite Index (BRVMCI), BRVM 10 Index (BRVM10), FTSE/JSE SA All Share Index (FTSEJSE), and FTSE/JSE Top 30 Responsible Investment Index (FTSERI). We employed Rényi transfer entropy estimates to measure the information flow between the stocks returns.
To ensure the robustness of the findings, the study also utilizes the Dynamic Conditional Co-variance-Generalized autoregressive Conditional Heteroscedasticity (DCC-GARCH) method. The study covers the period from June 23, 2014, to April 22, 2022. The results showed positive information flow but a mixture of significant and insignificant transfer entropies. The decomposed findings give evidence to reject the null hypothesis of no information flow in the short-and medium-terms but not in the longterm.
The exchange of seemingly insignificant information among stocks presents opportunities for fund managers to diversify their portfolios across various time frames.
To expedite economic growth and lower equity costs, institutional leaders should collaborate with governments to establish economic and political foundations that integrate markets. Such integration would yield benefits for both markets, but the BRVM stands to gain more due to its less developed and illiquid nature.
Small and medium enterprises (SMEs) serve as pivotal drivers of global economic growth, a consensus reiterated by influential scholars. Yet, a critical challenge impeding their progress is the ...limited access to capital financing, hampering the expansion prospects of countless small businesses worldwide. In South Africa, this dilemma is especially pronounced, with many SMEs either struggling or shuttering due to financial constraints. The Johannesburg Stock Exchange (JSE) devised a solution: The Alternative Exchange (AltX), a dedicated platform designed to ease capital financing for SMEs and boost their growth. In this study, we used secondary data obtained from the lower bourse, as well as other relevant databases for the period 2003 to 2019 to ascertain its impact on SME performance. Eviews 12 statistical software package was used to carry out an Ordinary Linear Regression (OLS) empirical analysis. We find that SME listing positively influences small business performance in South Africa. Furthermore, these listed firms' continued expansion is propelling them to become larger enterprises within a remarkably short span, transcending national borders. Our results robustly affirm a positive correlation between AltX listing, market capitalization, revenue, their Broad-Based Black Economic Empowerment (B-BBEE) score, Earnings Before Interest, Taxes, Depreciation, and Amortization (EBITDA), and improved SME performance. Moreover, this contributes to the existing literature by empirically proving that the boost in SME performance aligns with heightened GDP growth, suggesting a symbiotic relationship between the two. We recommend that policymakers should offer incentive schemes to enhance their performance given its impact on sustainable national growth and development.
In this paper, the use of artificial neural networks (ANNs) is proposed to approximate the option price sensitivities of Johannesburg Stock Exchange (JSE) Top 40 European call options in a classical ...and a modern multi-curve framework. The ANNs were trained on artificially generated option price data given the illiquid nature of the South African market, and the out-of-sample performance of the optimized ANNs was evaluated using an implied volatility surface constructed from published volatility skews. The results from this paper show that ANNs trained on artificially generated input data are able to accurately approximate the explicit solutions to the respective option price sensitivities of both a classical and a modern multi-curve framework in a real-world out-of-sample application to the South African market.
This research aims to investigate how the adoption of King III can affect the corporate governance model of a sample of South African listed companies on the Johannesburg Stock Exchange (JSE). ...Particularly, we analyzed the influence of sustainability-related issues of the board of directors (BDs) on firm environmental disclosure, after the mandatory preparation of integrated reporting (IR). In addition, we also examined indepth whether some corporate social policies are able to condition the foregoing disclosure. The empirical study covers the period from 2010 (the first-time adoption of IR in South Africa) to 2015 (the earliest year of the release process regarding King Code of Governance Principles for South Africa 2009 (i.e., King III)). Data were collected by the Bloomberg database. With reference to the BDs features, great attention was paid to both business ethics policy and CEO duality. Instead, with regard to corporate social issues, we looked into the adoption of the policies pertaining to health and safety and the respect for human rights. Following the mandatory preparation of IR, our findings show a positive relationship between business ethics policy and firm environmental disclosure. Contrarily, CEO duality does not exert any effect over the earlier type of corporate reporting. Furthermore, empirical evidence substantiates the association between health safety and human rights policies that are very crucial in an emerging economy, such as South Africa, and firm environmental disclosure. The rationale of such results arguably resides in compliance with King III. Therefore, this study can provide interesting insights, given that its mandatory adoption might reveal an important turning point in the development of corporate governance codes, as well as being a “driver” for potential enhancements of firm environmental disclosure, inter alia, in line with the Sustainable Development Goal (SDG) 12.6.
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