The author responds to an article in this edition by Bradbury (in press), which suggests that the free-market approach to estimating a player’s marginal revenue product (MRP) is limited. The author begins by reviewing a number of empirical issues that potentially limit the Scully approach, then turn to Bradbury’s concerns about the free-market approach. The author close by noting that these two methods are not competing nor is one necessarily superior to the other—each method has its own merits in terms of answering different types of questions related to a player’s value.
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