Edit: Oh, or did you mean that what you’d read before was just anecdotes?
That. http://www.hbs.edu/faculty/Publication%20Files/11-011_512c2b3a-2df5-41f9-a4ec-99af4716ba5f.pdf sounds interesting though.
That. http://www.hbs.edu/faculty/Publication%20Files/11-011_512c2b3a-2df5-41f9-a4ec-99af4716ba5f.pdf sounds interesting though.