Advance notice labor conflicts and firm value—An event study analysis on Israeli companies

The Israeli law has a special requirement—unions must announce a labor-conflict at least 15 days before a potential strike. This raises the question whether (and how) an advance notice affects the firm value, as it allows employees and employers to negotiate and reach an agreement prior to an actual strike. Using event study analysis, we find in large firms and in companies with relatively high stock liquidity significant negative effect only after the announcement. Smaller firms with relatively illiquid stock exhibit significant negative effect prior to the announcement day, and their post event-day effect is statistically insignificant.