This is quite a common measure in business, especially in project management. Including in the US, from my experience with a dozen or so large US companies I wo

This is quite a common measure in business, especially in project management. Including in the US, from my experience with a dozen or so large US companies I worked for or with. It is granular enough (~52 weeks) to give good (rough) estimations and is is not difficult to manage (compared to 365 days for instance)