Daily Digit is the story behind the numbers that make our world work. Today we’re looking at the possibilities of a shorter workweek. A new study shows that a four-day workweek is actually a smart business decision. Employees reported a 24% increase in work-life balance and returned to the job more energized and eager to find ways to increase productivity. Amazon is experimenting with a 30-hour workweek for some employees, who would receive only 75% of a full-time salary. Other companies have experimented with six-hour workdays. Which would you prefer: shorter workdays or a three-day weekend?