We can look at evidence in other provinces and at the federal jurisdiction as to, first of all, what you expect to happen and what does happen. What you can expect to happen with an essential services designation is that the costs to the employer of a strike become lower, in the sense that a minimum level of services do continue to be provided. That reduces the incentive for both sides, especially the employer, to come to the bargaining table.
There is some potential evidence that you do see slightly longer strikes. It's not exactly conclusive because there aren't a lot of strikes in the sectors that are covered by essential services designation. But you see this in the results of essential services workers having less bargaining power and lower wage growth.