The millions of Americans who are skipping out on the daily commute may also be losing out on a promotion. These so-called ‘telecommuters’ are less likely to receive positive performance reviews from superiors than their colleagues who show up in the office, a new study by MIT Sloan Management Review shows. The report chalks up much of the discrepancy to managerial subjectivity. Managers are less likely to be comfortable with a worker they don’t actually see on a regular basis. In fact,…