We discuss the finding that cross-sectional characteristic based models have yielded portfolios with higher excess monthly returns but lower risk than their arbitrage pricing theory counterparts in an analysis of equity returns of stocks listed on the JSE. Under the assumption of general...

This work presents an asset pricing model that under rational expectation equilibrium perspective shows how, depending on risk aversion and noise volatility, a risky-asset has one equilibrium price that differs in term of efficiency: an informational efficient one (similar to Campbell and Kyle...

This paper investigates how the disclosure tone of earnings conference calls predicts future stock price crash risk. Using U.S. public firm earnings conference call transcripts from 2010 to 2015, we find that firms exhibiting more pessimistic tone during the current year-end call experience...

This paper examines the dimensions of risk in the Nigerian Business environment with the objective of identifying the various types of risks facing the businesses operating in Nigeria. Empirical data for the paper was secondary and collected from the Kaduna branch of the Nigerian Stock Exchange...

Using a sample of U.S. firms between 1996 and 2011, this paper documents a positive association between options trading volume and future stock price crash risk. This relation is evidently more pronounced among firms with higher information asymmetry, business uncertainty, and short-sale...

During the global financial crisis, stressed market conditions led to skyrocketing corporate bond spreads that could not be explained by conventional modeling approaches. This paper builds on this observation and sheds light on time-variations in the relationship between systematic risk factors...

This paper examines how cybersecurity risk in crypto securities affects asset returns. Hackers steal cryptocurrencies by exploiting bugs in the code. We develop a novel measure of ex-ante cybersecurity risk by counting bug reports from GitHub, which houses the source code that produces crypto...

We develop a measure of how information events impact investors' expectations of risk. The measure is broadly applicable and simple to implement. We derive it from an option-pricing model, where investors anticipate an announcement that simultaneously conveys information on the announcer's...

This paper studies the tail risk of US equity markets in advance of the COVID-19 outbreak in February 2020, providing evidence that financial markets are informative about pandemic risk well in advance of the actual outbreak. Specifically, while the tail risk of the market index did not respond...

We examine the roles of rational and behavioural factors in explaining long-run premiums/discounts on closed-end funds, using evidence on equity funds from the US and UK. Although the processes by which fund prices converge towards long-run premiums or discounts are similar in the two countries,...