RT Article T1 The Effect of Environmental Activism on the Long-run Market Value of a Company: A Case Study JF Journal of business ethics VO 140 IS 3 SP 455 OP 476 A1 Lewis, Robert A1 O’Donovan, Gary A1 Willett, Roger LA English PB Springer Science + Business Media B. V YR 2017 UL https://ixtheo.de/Record/1785659995 AB This paper investigates the impact of activism on a large, powerful corporation in Tasmania. Gunns Ltd was a large woodchip processor in Tasmania that fought a long-running battle with environmental activists regarding Gunns’ logging and processing activities. The study focuses on events in 2004–2005, when Gunns applied to build a pulp mill in rural northern Tasmania and began a legal case against activists. The research question is whether there is clear statistical evidence that these events were important, as is widely believed, in the ultimate failure of Gunns in (Annual Report 2011, Gunns Ltd, Tasmania, available from: http://www.asx.com.au [11/04/14]), just 6 years after being the largest and one of the most financially successful Tasmanian companies. We use a mixed methods approach that combines a detailed narrative informed by theory, to examine issues of corporate social responsibility (CSR) and ethical behaviour, with an econometric time series analysis of the impact of activism on the market value of Gunns. Our analysis supports the contention that the events in 2004–2005 played a significant part in the decline of the long-run market value of Gunns over the subsequent period, through to its failure in 2011. We discuss the underlying causes for Gunns’ failure in terms of agency, stakeholder, legitimacy and leadership theories. Research frequently assesses effects such as those in the Gunns’ case through solely qualitative means. This paper integrates a quantitative analysis into a detailed qualitative narrative and theoretical interpretation of events, to provide additional precision to its findings. It contributes to research in CSR and the impact of activism. K1 Error correction modelling K1 Ethical Management K1 mixed methods K1 Gunns K1 Corporate Social Responsibility K1 Activism DO 10.1007/s10551-015-2686-1