Investigating the impact of IT security investments on competitor's market value: Evidence from Korea stock market
- Authors
- Kwon, Young Jin; Lee, Sang-Yong Tom
- Issue Date
- Jun-2020
- Publisher
- Korean Society of Management Information Systems
- Keywords
- Competitors; Event study; Information transfer theory; IT security investment; Korea stock market; Market reaction
- Citation
- Asia Pacific Journal of Information Systems, v.30, no.2, pp.328 - 352
- Indexed
- SCOPUS
KCI
- Journal Title
- Asia Pacific Journal of Information Systems
- Volume
- 30
- Number
- 2
- Start Page
- 328
- End Page
- 352
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/9785
- DOI
- 10.14329/apjis.2020.30.2.328
- ISSN
- 2288-5404
- Abstract
- If a firm announces an investment in IT security, how the market value of its competitors reacts to the announcement? We try to shed light on this question through an event study design. To test the relationship, we collected 143 announcements on cybersecurity investment and measured the subsequent impact on 533 competitors' abnormal returns, spanning from 2000 to 2019. Our estimation results present that, on average, the announcements have no observable impact on the market value of announcing firms and competitors as well, which is consistent with findings of a prior study. Interestingly, however, the impact becomes evident when we classify our samples by industries (Finance vs. non-Finance or ICT vs. non-ICT) and firm size (Big vs. Small). We interpret our empirical findings through the lenses of contagion effect and competition effect between announcing firms and their competitors. Key finding of our study is that, for financial service firms, the effect resulting from the announcement on cybersecurity investment transfers to competitors in the same direction (i.e., contagion effect).
- Files in This Item
-
- Appears in
Collections - 서울 경영대학 > 서울 경영학부 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/9785)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.