That's Interesting
-
Drawing Up the Bill: Is ESG Related to Stock Returns Around the World?
09th February, 2024This article aims to provide the most comprehensive analysis to date of the relation between ESG ratings and stock returns, using 16,000+ stocks in 48 countries and seven different ESG rating providers. The article finds very little evidence that ESG ratings are related to global stock returns over 2001-2020.
Read More -
OECD Corporate Governance Factbook 2021
27th November, 2023Between 2005 and 2020, according to the OECD, almost 30,000 companies delisted from global markets via conventional takeovers, share buybacks and leverage buyouts. Over most of that period delistings were not matched by new issues so there was a net loss of listed companies, mainly in the US and Europe.
Read More -
From Transcripts to Insights: Uncovering Corporate Risks Using Generative AI
19th November, 2023This article explores the value of generative AI tools, such as ChatGPT, in helping investors uncover dimensions of corporate risk by developing and validating firm-level measures of risk exposure to political, climate, and AI-related risks. Using the GPT 3.5 model to generate risk summaries and assessments from the context provided by earnings call transcripts, it shows that GPT-based measures possess significant information content and outperform the existing risk measures in predicting (abnormal) firm-level volatility and firms’ choices such as investment and innovation.
Read More -
Mental Models of the Stock Market
15th November, 2023Investors’ return expectations are pivotal in stock markets, but the reasoning behind these expectations remains a black box for economists. This paper sheds light on economic agents’ mental models – their subjective understanding – of the stock market, drawing on surveys with the US general population, US retail investors, US financial professionals, and academic experts.
Read More -
Greenwashing: Do Investors, Markets and Boards Really Care?
12th November, 2023What are the financial repercussions of corporate greenwashing? To answer this question, this article focuses on the impact of such ethically flawed practices on corporate stock market performance.
Read More -
Behavioral Machine Learning? Computer Predictions of Corporate Earnings also Overreact
22nd September, 2023There is considerable evidence that machine learning algorithms have better predictive abilities than humans in various financial settings. But, the literature has not tested whether these algorithmic predictions are more rational than human predictions.
Read More -
Not even the machines are rational
11th September, 2023For 50 years, behavioural economics has thrown the gauntlet at the rational expectation hypothesis and the concept of homo economicus. But now, rationality could fight back. AI and machine learning algorithms have become so powerful that their forecasts can compete with analyst forecasts (at least before transaction costs) and these algorithms certainly aren’t biased like humans are. Or are they?
Read More -
Revealed Beliefs about Responsible Investing: Evidence from Mutual Fund Managers
30th August, 2023What do asset managers — a group of presumably sophisticated investors — believe regarding the financial performance of Environmental, Social, and Governance (ESG) investment strategies? This article addresses this question by exploring the relationship between US mutual fund managers’ incentives to deliver high returns and their portfolio ESG performance.
Read More -
Speed and Expertise in Stock Picking: Older, Slower, and Wiser?
31st July, 2023There are significant differences among sell-side analysts in how frequently they revise recommendations. This article shows that much of this variation is an analyst-individual trait, with analysts who change recommendations more slowly make recommendations that are more influential and generate better portfolio returns.
Read More