crseEventStudy: A Robust and Powerful Test of Abnormal Stock Returns in Long-Horizon Event Studies

Based on Dutta et al. (2018) <doi:10.1016/j.jempfin.2018.02.004>, this package provides their standardized test for abnormal returns in long-horizon event studies. The methods used improve the major weaknesses of size, power, and robustness of long-run statistical tests described in Kothari/Warner (2007) <doi:10.1016/B978-0-444-53265-7.50015-9>. Abnormal returns are weighted by their statistical precision (i.e., standard deviation), resulting in abnormal standardized returns. This procedure efficiently captures the heteroskedasticity problem. Clustering techniques following Cameron et al. (2011) <10.1198/jbes.2010.07136> are adopted for computing cross-sectional correlation robust standard errors. The statistical tests in this package therefore accounts for potential biases arising from returns' cross-sectional correlation, autocorrelation, and volatility clustering without power loss.

Getting started

Package details

AuthorSiegfried Köstlmeier [aut, cre] (<https://orcid.org/0000-0002-7221-6981>), Seppo Pynnonen [aut]
MaintainerSiegfried Köstlmeier <[email protected]>
LicenseBSD_3_clause + file LICENSE
Version1.2
URL https://github.com/skoestlmeier/crseEventStudy
Package repositoryView on CRAN
Installation Install the latest version of this package by entering the following in R:
install.packages("crseEventStudy")

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crseEventStudy documentation built on Aug. 20, 2019, 5:11 p.m.