This study examines the relationship between women in top management positions while working part-time (WTMpt) and sales performance using data collected from 47 hotels located across ten cantons of French- and German-speaking regions of Switzerland. We use two-stage least squares regression models to overcome the reverse causality of this relationship and include macro variables in our model (birth rates, institutional childcare, political parties, and female political representation). Our results show that WTMpt decrease the volatility of hotels’ Revenue per Available Room (RevPAR) in both high and low seasons.