“…From econometric perspective, there are numerous challenges associated with the estimation of the returns to tasks. First, the assignment of workers to occupations and tasks is not random, but is systematically related to observable individual characteristics such as gender, race, education (Autor and Handel, 2013), cognitive skills (Agasisti, Johnes and Paccagnella, 2021;Deming, 2017), and unobservable individual characteristics such as innate ability (Cortes, 2016) and preferences 2 . Failing to account for such observable and unobservable factors, especially when these are correlated with individual wages, will produce biased estimates of the returns to tasks.…”