This study investigates whether firms are willing to pay higher wages to workers who demonstrate consistent performance than to those whose performance is more volatile. A formal model reflects a production technology view, assuming the law of diminishing marginal product. This model suggests that a more consistent worker produces higher expected output and therefore receives a higher wage. The test of the model uses data from the National Basketball Association. The empirical data support the model: Players whose performances were more consistent than the performances of other players received higher wages on average. (JEL D41, J31, M52, Z20)