The overall impact of extending a collective contract to all firms in an industry depends on how much employment is lost due to the contract's provisions on minimum wages and other working conditions. Assessing the impact of collective contract extensions on wages and employment outcomes requires linking information on collective contracts registers to longitudinal data on employers and employees. New evidence based on such data sheds light on the socalled bite of negotiated minimum wage floors and shows that wage and employment responses are mostly confined to workers with earnings close to the minima. Policy mechanisms such as representation requirements and "opt-out" clauses may alleviate these concerns in some settings.
ELEVATOR PITCHIn many countries, the wage floors and working conditions set in collective contracts negotiated by a subset of employers and unions are subsequently extended to all employees in an industry. Those extensions ensure common working conditions within the industry, mitigate wage inequality, and reduce gender wage gaps. However, little is known about the so-called bite of collective contracts and whether they limit wage adjustments for all workers. Evidence suggests that collective contract benefits come at the cost of reduced employment levels, though typically only for workers earning close to the wage floors.