With respect to Major League Baseball, studies by Scully and others found that:
a.* players were paid substantially less than their marginal revenue products prior to free agency
b. players were paid their marginal revenue products even before free agency, which is consistent with the competitive nature of the baseball business
c. players were paid their marginal revenue products prior to free agency. Since that time, salaries have fallen below marginal revenue products
d. salaries far exceed marginal revenue products since the advent of free agency
为什么选A呢?免费代理是什么?



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