This paper examines the impact of technological alliance announcements in a nonfavorable environment, using event study methodology that includes robust tests to allow heteroskedasticity across firms and over time. The study is based on Spanish data, and focuses on the fact that Spanish market conditions do not favor firms that are deciding whether to enter a technological alliance. The paper is extended to analyze different features of alliances. Results suggest no stock market reaction on the day of the announcement, and a negative reaction on the days that follow. Our results also show that the stock market exacts no penalty on joint venture alliances, alliances involving public entities, alliances between Spanish firms, or alliances between competitors. The common feature revealed in these subgroups is the pursuit of security, a phenomenon that is consistent with the study environment.
Bayona, C., Corredor, P. and Santamaría, R. (2004), "Collaborative Culture and Stock Market Reaction to Alliance Announcements", Management Research, Vol. 2 No. 1, pp. 25-48. https://doi.org/10.1108/15365430480000728Download as .RIS
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