The Rise of Anti-Activist Poison Pills
Ofer Eldar, Tanja Kirmse, Michael D. Wittry
Finance Working Paper,
No. 869,
2023
Abstract
We examine the contractual evolution of poison pill design, focusing on lower ownership triggers, acting-in-concert provisions, and synthetic equity clauses that tailor pills to defend against shareholder activism. Using novel data on hedge funds' access to SEC filings as a proxy for intervention threats, we find that firms facing heightened activist threats are more likely to adopt anti-activist pills. Relative to comparable firms under activist scrutiny, pill adopters experience fewer subsequent activist interventions and are less likely to pursue activist-favored policies, such as reduced investment and increased buybacks. These findings contribute to policy debates over defensive measures against activist interventions.
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Management Opposition, Strikes and Union Threat
Patrick Nüß
IWH Discussion Papers,
No. 17,
2025
Abstract
I estimate management opposition to unions in terms of hiring discrimination in the German labor market. By sending 13,000 fictitious job applications, revealing union membership in the CV and pro-union sentiment via social media accounts, I provide evidence for hiring discrimination against union supporters. Callback rates are on average 15% lower for union members. Discrimination is strongest in the presence of a high sectoral share of union members and large firm size. I further explore variation in regional and sectoral strike intensity over time and find suggestive evidence that discrimination increases if a sector is exposed to an intense strike. Discrimination is positively associated with the sectoral share of firms that voluntarily orientate wages to collective agreements. These results indicate that hiring discrimination can be explained by union threat effects.
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