对张华夏教授的“问题与评论”之答辩

我写此答辩，并非不喜欢张教授的评论。相反，我非常喜欢他提出问题并加以评论，因为一评一答，可以使理论更加清楚，也可以使其他的读者更易于深入了解我的统合效用主义理论。     

Reply to Gehrke

This paper responds to Christian Gehrke's comment, and argues that the main conclusion of my earlier paper is sustained—that, contrary to Sraffa, Marx did not ‘adopt’ in any sense of the word the joint product method of treating fixed capital. It agrees with Gehrke that Torrens adopted a form of the joint product method, and that Malthus seems to have followed Torrens in this regard. However, it argues that Ricardo did not adopt the joint product method, not even in the one instance cited by Sraffa. Finally, it argues briefly that Marx's ‘transformation of value’ method of treating fixed capital and depreciation is superior to Sraffa's joint product method.