Comments on “The Limits of Japanese Production Theory” by Willard I. Zangwill

In 1992, we published the article “The limits on Japanese production theory” by Willard I. Zangwill. This article alone drew more response than all other articles combined during my editorship. The three comments we have chosen to publish reflect the views of all of the letters and comments that we received and were reviewed for their content. Two are technical and challenge the nature of Zangwill's results. The third is from a practitioner who asks, “Who cares?” Zangwill replies to all three, defending his point of view. Each of these authors has something useful to say, and I look forward to the debate continuing, since this is what science is about (Frederic H. Murphy).