When shares are traded infrequently, beta estimates are often severely biased. This paper
reviews the problems introduced by infrequent trading, and presents a method for …

The paper outlines widely used methods of estimating abnormal returns and testing their
significance, highlights respects in which they differ conceptually, and reviews research …

In this article, we use an event study approach to empirically study the market performance
and response trends of Chinese industries to the COVID-19 pandemic. The study found that …

Event studies focus on the impact of particular types of firm-specific events on the prices of
the affected firms' securities. In this paper, observed stock return data are employed to …

Published in 1997, this text focuses on the conundrum between the academics ability to
distinguish between failing and non-failing businesses with models of over 85.5 per cent …

The novel Covid-19 virus has changed the dynamics of 'flight to safety'investment for various
economies. Thus, the hedging ability of the stocks must be revisited in the scenario of this …

This paper presents estimates of the effect of a voluntary spin‐off announcement on
shareholder wealth. The results show that spin‐off announcements have a positive influence …

This study takes the COVID-19 outbreak as a quasi-natural experiment to investigate
whether corporate social responsibility (CSR) performance can help firms mitigate drops in …

This study of 862 press recommendations demonstrates that the size effect can distort longer-
term performance measures, and hence event studies. Relative to similar sized companies …

This study measures the immediate impact of Russia–Ukraine war on the global stock
markets for the first four months since Russia's first invasion attempt on February 24, 2022 …