The concept of a four-day work week has been around for nearly a century, with economist John Maynard Keynes predicting it in 1930 and even Richard Nixon supporting the idea in the 1950s. The idea gained momentum in the 1990s with France's implementation of reduced work hours, and now several European countries are experimenting with shorter work weeks. A study conducted by New Zealand firm Perpetual Guardian found that reducing their work week from 40 to 32 hours resulted in increased employee satisfaction, productivity, and motivation, with no decrease in job performance. The benefits of a four-day work week include better productivity, more efficient use of time, improved employee satisfaction, team building, lower unemployment rates, environmental benefits, and reduced overhead costs. However, there are also potential drawbacks such as the risk being expensive for employers, not all industries being able to participate, and workers putting in the same hours anyway. To implement a four-day work week, companies can start by encouraging automation, communicating with employees, starting gradually and practicing adaptive scheduling, and tracking productivity. With the growing interest in reducing working hours, it's likely that the four-day work week will become more prevalent in the future.