The Moderating Effect of Context on the Market Reaction to it Investments

Posted: 23 Aug 2005

See all articles by Wonseok Oh

Wonseok Oh

McGill University - Desautels Faculty of Management

Joung W. Kim

Nova Southeastern University

Vernon J. Richardson

University of Arkansas at Fayetteville

Abstract

This paper examines the moderating effects of firm and IT characteristics on the market reaction to IT investment announcements. A special emphasis has been placed on the potential interaction effects of these two types of variables, since the previous event studies have paid limited attention to the possibility that they interact and jointly alter investors' perceptions in relation to IT investment announcements. Very recently, several authors have noted the importance of interaction effects on theory development for IS research. Their assessments are particularly relevant to IT-value event studies, since the market reaction to IT investment announcements involves a complex process shaped by the interaction of firm and IT characteristics. Based on the previous studies in IS, finance and accounting, a firm's growth potential and uncertainty are used as proxies to represent firm characteristics, while IT strategic role and asset-specificity of IT are chosen as the variables reflecting IT characteristics. Three other variables (discloser information, firm size and industry) are included to control for their effects. We develop eight hypotheses based on the examinations of the main and interaction effects of firm and IT characteristic variables on the shareholder's reaction to IT investment announcements.

The results of the main effects indicate that a firm's growth prospects, uncertainty, the strategic role of IT and discloser information are significantly related to cumulative abnormal returns (CARs), while no significant effect was observed for asset-specificity of IT resources. Interestingly, however, interaction effects reveal that the stock market reacts with a discount to announcements of IT investments that are characterized as highly asset-specific in the presence of uncertainty. In addition, the market reacts more favourably to investments with a transformational IT strategic role when the firm faces greater uncertainty. One of our main contributions in this study is to provide a finer level of granularity with regard to the market reaction to IT investments by considering the interaction as well as the main effects of firm and IT characteristics.

Keywords: IT investment, firm characteristics, IT characteristics, market reaction, information economics, interaction effects

JEL Classification: G12, G31, M00

Suggested Citation

Oh, Wonseok and Kim, Joung W. and Richardson, Vernon J., The Moderating Effect of Context on the Market Reaction to it Investments. Journal of Information Systems, Vol. 20, No. 1, 2006. Available at SSRN: https://ssrn.com/abstract=783984

Wonseok Oh

McGill University - Desautels Faculty of Management ( email )

1001 Sherbrooke St. West
Montreal, Quebec H3A1G5 H3A 2M1
Canada

Joung W. Kim

Nova Southeastern University ( email )

3301 College Avenue
Ft. Lauderdale, FL 33314
954-262-5110 (Phone)
954-262-3974 (Fax)

Vernon J. Richardson (Contact Author)

University of Arkansas at Fayetteville ( email )

401 WCOB
Fayetteville, AR 72701
United States

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