On paper, a four-day job is certainly a positive change in business, and some studies even conclude that it is beneficial for both the employee and the employer because, among other things, it improves the quality of work, reduces stress, and increases the opportunity to find new talents.

However, as the example of research firm Alter Agents illustrates, four-day work is not suitable for all organizations.

The company experimented with a four-day (32-hour workday) for 10 weeks, allowing workers to choose which day they want to take their day off.

The only condition was that two people from the same group could not be absent on the same day.

As Alter Agents CEO Rebecca Brooks told Fast Company, “The system worked because the customers didn’t notice. In fact, we didn’t tell our clients what we were doing. We figured we’d only be successful if our clients didn’t know about the four-day work week.”