Proxy Advisory Firms and Corporate Shareholder Engagement

We examine the influence of proxy advisors on firms’ shareholder engagement behavior. Our analyses exploit a quasi-natural experiment using Say-On-Pay voting outcomes near a threshold that triggers a review of engagement activities by Institutional Shareholder Services (ISS). Firms receiving ISS treatment exhibit a swift and substantive increase in engagement, especially those with weaker ex-ante governance. The elevated engagement persists beyond the period of ISS scrutiny. Treated firms alter elements of compensation and pay transparency that align with shareholder feedback, and enjoy ex-post economic benefits. Our findings indicate a disciplinary spillover effect of ISS through enhanced and enduring firm-shareholder interactions.