The data goes up to 2019, and while it is of course impossible to say now what the gain is for someone who works a unionized job for 40 years starting in 2010,

The data goes up to 2019, and while it is of course impossible to say now what the gain is for someone who works a unionized job for 40 years starting in 2010, they tried to see if there was some trend in the data for more recent cohorts: > Given strong declines in union membership, future cohorts may see smaller cumulative gains from union membership; in additional analyses, we find that this outcome is likely channeled through declines in union membership, rather than declines in the wage premium associated with union membership. Our findings suggest that the increasingly rare group of workers who are persistently unionized may nonetheless see similar gains as observed in this study.