“…Whereas a firm's expenses in terms of wages and benefits are influenced by the wage expenses by its industry peers (satisfying the relevance requirement of instrumental variables), it is unlikely that these expenses by industry peers affect the firm's announcement returns directly or through channels other than the focal firm's employment policies, thus satisfying the exclusion condition. 17 Similar arguments on peer effects are made for other corporate policies such as capital structure (Leary and Roberts, 2014), corporate financial policies (Ferrell, Liang, and Renneboog, 2016), corporate social responsibility (Cao, Liang, and Zhan, 2016;Liang and Renneboog, 2016), and corporate culture (Fiordelisi, Li, Stentella-Lopes, and Ricci, 2016). We take the within-sample mean of the lagged employee salaries and benefits 17 One potential concern is that the firm's employment quality and its peer firms' wages and benefits expenses are affected by transitory political or economic situations (e.g.…”