Since the 2017 labour law reform, a group of experts has been tasked with assessing the economic and social effects that may result from extending collective labour agreements (CLAs) concluded between employers' and employees' organisations to regulate labour relations (L. 2261-27-1 of the French Labour Code). The group requested the Minister of Labour to ask the Government to submit to the Autorité de la concurrence a request for an opinion on the effects on competition that could result from these extensions.