Past research has demonstrated that telecommuting can boost employee morale, save companies money, and help reduce damage to the environment. It turns out that further loosening the grip on employees by granting them flexible schedules can yield a significantly higher tolerance for longer work weeks, according to a study by Brigham Young University.
According to ScienceDaily, BYU researchers studied data about 24,436 IBM employees spread among 75 countries and identified the point at which a quarter of them reported that work was interfering with their personal and home life. Office workers with fixed hours cried uncle at 38 hours per week; those with option to telecommute and make their own hours could push through 57 hours before feeling that strain.
Notably, according to the report, not all 57 of the work hours are spent telecommuting. Rather, employees decide which work environment best suits the duty of the day (or hour).
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http://www.infoworld.com/d/green-it/research-telecommuters-flex-time-can-handle-50-percent-more-work-866?source=IFWNLE_nlt_blogs_2010-06-03