he 4-day workweek isn't a novel concept. In fact, it's been piloted at companies like Shake Shack, Uniqlo, Microsoft Japan, and even as a nation-wide experiment in New Zealand as early as 2018. And many have had positive results. In Microsoft Japan's case, the company claimed it boosted productivity by 40%. Shake Shake reported that recruitment, especially among women, spiked as a result. These are some sucessful examples of the 4-day workweek, but the recent dramatic change to remote work has spurred another wave of interest in rethinking the traditional Monday-to-Friday routine.