Performance of Equity Investments in Sustainable Environmental Markets

Despite a significant increase in global clean energy investments, as part of the decarbonization process, it remains insufficient to meet the demand for energy services in a sustainable manner. This study investigates the performance of sustainable energy equity investments, with focus on environmental markets, using monthly equity index data from 31 August 2009 to 30 December 2022. The main contributions of our study are (i) assessment of the performance of trading strategies based on the trend, momentum, and volatility of Environmental Opportunities (EO) and Environmental Technologies (ET) equity indices;and (ii) comparison of the performance of sustainable equity index investments to fossil fuel-based and major global equity indices. Market performance evaluation based on technical analysis tools such as the Relative Strength Index (RSI), Moving Averages, and Average True Range (ATR) is captured through the Sharpe and the Sharpe per trade. The analysis is divided according to regional, sector, and global EO indices, fossil fuel-based indices, and the key global stock market indices. Our findings reveal that a momentum-based strategy performed best for the MSCI Global Alternative Energy index with the highest excess return per unit of risk, followed by the fossil fuel-based indices. A trend-based strategy worked best for the MSCI Global Alternative Energy and EO 100 indices. The use of volatility-based information yielded the highest Sharpe ratio for EO Europe, followed by the Oil and Gas Exploration and Production industry, and MSCI Global Alternative Energy. We further find that a trader relying on a system which simultaneously provides momentum, trend, or volatility information would yield positive returns only for the MSCI Global Alternative Energy, the S&P Oil and Exploration and Production industry, NYSE Arca Oil, and FTSE 100 indices. Overall, despite the superior performance of the MSCI Global Alternative Energy index when using momentum and trend strategies, most region and sector EOs performed poorly compared to fossil fuel-based indices. The results suggest that the existing crude oil prices continue to allow fossil fuel-based equity investments to outperform most environmentally sustainable equity investments. These findings support that sustainable investments, on average, have yet to demonstrate consistent superior performance over non-renewable energy investments which demonstrates the need for continued, rigorous, and accommodating regulatory policy actions from government bodies in order to reorient significant capital flows towards sustainable equity investments.

Enforcing Double Materiality in Global Sustainability Reporting for Developing Economies: Reflection on Ghana’s Oil Exploration and Mining Sectors

While the development of globally accepted sustainability reporting standards initiated by the IFRS Foundation has largely engaged stakeholders in developed economies, the stakes for developing economies could be compromised without an explicit consideration of their sustainability issues within this standard-setting framework. This paper examines the need to develop global sustainability reporting standards based on the principle of double materiality to warrant that both the target towards carbon net-zero by 2050 under the Paris Agreement and the subsequent promise to accelerate under COP26 are achieved with efficacy. Adopting a multiple-case study approach, this paper reveals the limitations of existing sustainability reporting in the absence of double materiality in a developing economy. Specifically, the analyses reveal limited climate-related disclosures among selected cases in Ghana. Available disclosures connote increasing GHG emissions over the period under consideration. This study also shows weak disclosure comparability across the companies following similar reporting standards. Overall, it argues that enforcement of double materiality to embrace sustainability issues impacting both developed and developing economies is necessary for an effective transformation towards a low-carbon global economy. It contributes to the existing body of knowledge by elucidating double materiality as a pertinent interdisciplinary concept and devising a holistic framework for the emerging global sustainability reporting system to underscore governance accountability for external costs to the environment. Global sustainability reporting standards with a myopic focus on conventional financial matters in the absence of double materiality remain a disclosure system with implausible impact on climate change.

COVID-19 and oil price shocks: the case of Republic of the Congo

The downturn in the global economy following the outbreak of COVID-19 pandemic has caused a fall in demand and a huge decline in oil prices. To examine the impact of negative exogenous shocks including oil price shocks, most studies focus on how it impacts on a country's economic growth. Focusing on the Republic of the Congo, our paper incorporates the modalities of sharing oil rents between the State and the oil exploration companies. In particular, our analysis is based on the rent sharing modalities of the fifteen oil contracts in this country. We demonstrate that the Republic of the Congo suffers three shocks: declining oil price shocks, diminishing share of oil rents with the exploration companies and a reduction in production volumes. Our work offers a better assessment of the needs of the country and the necessary aid that may promote stability and a reduction in the risk of a food crisis.