“…Kossek, Barber, and Winters (1999) study the use of flexible working schedules and find that women and younger employees are more likely to take advantage of them. Similarly, Sharpe, Hermsen, and Billings (2002) find younger employees, those who are more educated, and those with young children to be more likely to use flexible schedules, while Virkebau and Hazak (2017) find the impact to be the opposite for employees with children in the family below school-age, where the daily routine of family life may create a demand for fixed schedules whatever the creative needs of the work. Hazak, Ruubel, and Virkebau (forthcoming) find in a study using data from the same survey of Estonian R&D employees that only one quarter of employees favoured a standard five-day working week, while more than half would prefer a working week concentrated in three or four days, with the differences in preferences explained by gender, education, health, sleeping hours, whether the employee is of morning type or evening type as their inherent circadian rhythms leave them more alert in the morning or in the evening, and the desired share of time spent on creative work.…”