Here you go: https://www.simplypsychology.org/emotional-labor.html

> Hochschild (1983) suggested that jobs requiring more emotional labor are performed primarily by women. These jobs typically involve creating feelings of well-being or affirmation in others – responsibilities usually assigned to women.

Hochschild, A. (1983). 1983 The managed heart. Berkeley: University of California Press.

I've read the outline of Hochschild's work, and it applies to jobs like waitresses, who have to maintain a positive image in order to do their job, not people in meetings in an office talking about a project. Hochschild herself has mentioned the scope-creep of the concept, critically.